mirror of https://gitee.com/openkylin/linux.git
56800 Commits
| Author | SHA1 | Message | Date |
|---|---|---|---|
Linus Torvalds
|
00c569b567 |
File locking changes for v4.21
-----BEGIN PGP SIGNATURE----- iQIcBAABAgAGBQJcILryAAoJEAAOaEEZVoIVByMP/RYty0dsV9ALt0PKqxKyDVT7 9KOGA73JIahpeO2dnlIiZAXdeC3Y350UH2axrX6Xy/X6ktTCca3X/xqZMn/wK5kt zeMeqcjsyTz4wJoOCWUm7nsteMALfusDAIMd8axEnBFgWk9nsQwgh+jS1gYVj2D1 GUSdCceKcQ0ZOSsZDzDFgd/R34dNMobvYd1aOE2bgHL19BAXj1aKIv81yAjjY41A D+VVvEyzIHQUtxmWk1X3X8kYfhHMu4X5AQhhqPxw8jw8CC0w0lfQTOZe/ApeMfxZ BFhusMdwf8QhkGWMOfhOTldTm3GobBmdsNX5HmukvcAEjDVPiOLCiKXaLWEBJ68r HbmB3YyxzT2re0PfSa72WIu6W8aKZHUny+BLgTHiuW3KIV1khJK4AflWKMLfe8yi 0xUWm0SeiwMCdBLtkD8IykC19LBCAKM15JBxpUHadBvBsO9G+54DfzRImjnxSjAH tX0RnFWmA7hXt02fZjcywT+/+n84kt0lbjdJAKXK6tl0DbGxlEj8YoJVBNG/p94q ARHgBKMFTrsDPJiMY5WSobHapjmnSNDBk6uSf6TPe2E5wmnhLcwfTqwCdnpocW6c A7CX+q/Jfyk1oNEGajXXyIsjaDc2Ma0Fs/mfb3o5Lhkjq68e+LT0+eIjn4veuY5H KoZ/KVBGs4Uxy81qMPkl =sUSp -----END PGP SIGNATURE----- Merge tag 'locks-v4.21-1' of git://git.kernel.org/pub/scm/linux/kernel/git/jlayton/linux Pull file locking updates from Jeff Layton: "The main change in this set is Neil Brown's work to reduce the thundering herd problem when a heavily-contended file lock is released. Previously we'd always wake up all waiters when this occurred. With this set, we'll now we only wake up waiters that were blocked on the range being released" * tag 'locks-v4.21-1' of git://git.kernel.org/pub/scm/linux/kernel/git/jlayton/linux: locks: Use inode_is_open_for_write fs/locks: remove unnecessary white space. fs/locks: merge posix_unblock_lock() and locks_delete_block() fs/locks: create a tree of dependent requests. fs/locks: change all *_conflict() functions to return bool. fs/locks: always delete_block after waiting. fs/locks: allow a lock request to block other requests. fs/locks: use properly initialized file_lock when unlocking. ocfs2: properly initial file_lock used for unlock. gfs2: properly initial file_lock used for unlock. NFS: use locks_copy_lock() to copy locks. fs/locks: split out __locks_wake_up_blocks(). fs/locks: rename some lists and pointers. |
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Linus Torvalds
|
f6b1495fba |
All cleanups and bug fixes; most notably, fix some problems discovered
in ext4's NFS support, and fix an ioctl (EXT4_IOC_GROUP_ADD) used by old versions of e2fsprogs which we accidentally broke a while back. Also fixed some error paths in ext4's quota and inline data support. Finally, improve tail latency in jbd2's commit code. -----BEGIN PGP SIGNATURE----- iQEzBAABCAAdFiEEK2m5VNv+CHkogTfJ8vlZVpUNgaMFAlwgYYEACgkQ8vlZVpUN gaPh1Af9GCGcgbwmmE+PSwqYXXdDm27hG3Xv4glLcAnmmuT32lMjzjifWPhT8sFs +l1nh2rd0/u14PocjAL8neuuc9G9J+xNS33jlNQsqMsfFQD4cZMk7T1j68JIAEd3 bt/VNIUxvPshYwgvEJlXAeZvXx8kPMKyR44/FyzHdU9oDSWBYE3A9+rjRGUFxXDR LuqwLhvERv6Vykfrzhluj8IOZM6V221alRDuWjx1sQF+/E6zAqyjR3YoYXk04Ajg vnAfEXToeBwLVeTUQgmT9hPrinh7/00wCKekNuzzhg7oKDp7FgD1BMlxBr9eOW+5 pQwM9T+AVbs9EfpYasC6ElEMbLfOPw== =lCnm -----END PGP SIGNATURE----- Merge tag 'ext4_for_linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tytso/ext4 Pull ext4 updates from Ted Ts'o: "All cleanups and bug fixes; most notably, fix some problems discovered in ext4's NFS support, and fix an ioctl (EXT4_IOC_GROUP_ADD) used by old versions of e2fsprogs which we accidentally broke a while back. Also fixed some error paths in ext4's quota and inline data support. Finally, improve tail latency in jbd2's commit code" * tag 'ext4_for_linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tytso/ext4: ext4: check for shutdown and r/o file system in ext4_write_inode() ext4: force inode writes when nfsd calls commit_metadata() ext4: avoid declaring fs inconsistent due to invalid file handles ext4: include terminating u32 in size of xattr entries when expanding inodes ext4: compare old and new mode before setting update_mode flag ext4: fix EXT4_IOC_GROUP_ADD ioctl ext4: hard fail dax mount on unsupported devices jbd2: update locking documentation for transaction_t ext4: remove redundant condition check jbd2: clean up indentation issue, replace spaces with tab ext4: clean up indentation issues, remove extraneous tabs ext4: missing unlock/put_page() in ext4_try_to_write_inline_data() ext4: fix possible use after free in ext4_quota_enable jbd2: avoid long hold times of j_state_lock while committing a transaction ext4: add ext4_sb_bread() to disambiguate ENOMEM cases |
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Linus Torvalds
|
bc77789a49 |
Updates for 4.21:
- Fix a memory overflow bug for blocksize < pagesize -----BEGIN PGP SIGNATURE----- iQIzBAABCgAdFiEEUzaAxoMeQq6m2jMV+H93GTRKtOsFAlwgKPoACgkQ+H93GTRK tOvXxBAAqAXKDYD04e+BkHJP5nrFos8U7jo/IWGninvf5dLVwQDjj4uhxZwG/4p9 da6NN8l09FCe8q0EOl01j5lVJqK6WC1VcuZN2/J7Yq4B/+oCipdkJJ+mrM732Ix9 cbOwFkdGheISMSvsOV6xIZv/khenVyQFNAHd9HnFAlGYcZOtU9kVnp7tapjTwdS/ YAn+uBAfRWpXxLBy5W41hMOvbTM1gz4oTMRLTm00T3vdDd0UPrpGRaD0chs9KXHF 9G3xYnUIBV/+DMJ/STYoWao0fOtM06ermYKq/7QqfY43me9RAaoCgbDU79dzz5AQ 4TYn2oc3QBfNHnyZDq3agdBjXFN/I99/Rsgiqiu5gRTfyFkKZ5ts9IKVum+rhbEg qG+DLTYcfmNFWAI1KQ5uO/UpZo76GwzNUsz/vv6PheW+cORc/JGifHU2fif0XLDG xFgQqFSb8MWSWKnXZZgqvaNJIosvUg6mEZiQNrtu/p1tFZeaB/amPptdDvsDHqrT 9roAhenLIbyBDLMqA84po1xYMMIJqTEbwvEQkWjtNh5LyVgRH1ZsVd63CTFWFdtQ czz38k3qiiAyv9MauV02aJx3CTrvFxeUFK3azGsJ9qI7f8UJ0dtIiH/SpEjRZyaI hh0f6KgMSF7lyyIx08ZpZ1QtJ0uhqvZ1o/REVNpEcYOJIEb2cAk= =MSPp -----END PGP SIGNATURE----- Merge tag 'iomap-4.21-merge-2' of git://git.kernel.org/pub/scm/fs/xfs/xfs-linux Pull iomap update from Darrick Wong: "Fix a memory overflow bug for blocksize < pagesize" * tag 'iomap-4.21-merge-2' of git://git.kernel.org/pub/scm/fs/xfs/xfs-linux: iomap: don't search past page end in iomap_is_partially_uptodate |
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Linus Torvalds
|
47a43f2f0c |
XFS changes for 4.21:
- Fix CoW remapping of extremely fragmented file areas - Fix a zero-length symlink verifier error - Constify some of the rmap owner structures for per-AG metadata - Precalculate inode geometry for later use - Fix scrub counting problems - Don't crash when rtsummary inode is null - Fix x32 ioctl operation - Fix enum->string mappings for ftrace output - Cache realtime summary information in memory -----BEGIN PGP SIGNATURE----- iQIzBAABCgAdFiEEUzaAxoMeQq6m2jMV+H93GTRKtOsFAlwedm4ACgkQ+H93GTRK tOumSBAAjP9nFAWmI9n/4GEyNI7p6Iz26q42vePiX7FspJY2iWG38gf5PyRarL7X eWzmUhUJVQ3koA4+h+ImGPWwjZAyDUug7r437sPPPkcMvG9WKrj8A2M+kQve39NB kCaXsRJFEvOdFXTMwTzCMrZrHa1b/slqj65eoUyXI7dzT0vwuU8Nj8CX6//zOHD2 4i7yiyGGnZvQ+Ql8ad+ck7LjooeBUzl3XBeOHlFZAO+gDCu6o1TUqO+x8HZPy58N sfBLY/9vqlzEN8EpWjiTdI+GNH0zhO0tJQI5YJlGqa6SpIC78fWElfFF0A9CUXy4 meKc9VmJ5oYi0Rg62S3pKTRZWtkr9FddBjS/C0thvXIpw6CSmHz/ED41P/wrtnI+ vbknTXeiLeCuTTLtnYWJNIW1kvWjS2vXlQQT5jt/rp49ZqzfetM9nuopES0CcnCm a8K++V2LZuYEPzM2fKQgAdd5z02BYeNu8uaEBEHcAWDUnVo/bKInp87dEiQZ5GXx PBfIfOuqVooCppp9w1T7nzshI0R3k+LQj2R4S0d039hfEw8eQmPu39rfvugy6YwI qCZo8uErzWmqF7T4EXMtGu1FS8xIwyLPyiqcsCd8g+zep95iVySSrhha+3DgR/mG 85s4VOE5aWijBrRZixIIqF1bIc+LPE/miBEXIyCsBPRD52+YQcQ= =P0gt -----END PGP SIGNATURE----- Merge tag 'xfs-4.21-merge-2' of git://git.kernel.org/pub/scm/fs/xfs/xfs-linux Pull XFS updates from Darrick Wong: - Fix CoW remapping of extremely fragmented file areas - Fix a zero-length symlink verifier error - Constify some of the rmap owner structures for per-AG metadata - Precalculate inode geometry for later use - Fix scrub counting problems - Don't crash when rtsummary inode is null - Fix x32 ioctl operation - Fix enum->string mappings for ftrace output - Cache realtime summary information in memory * tag 'xfs-4.21-merge-2' of git://git.kernel.org/pub/scm/fs/xfs/xfs-linux: (24 commits) xfs: reallocate realtime summary cache on growfs xfs: stringify scrub types in ftrace output xfs: stringify btree cursor types in ftrace output xfs: move XFS_INODE_FORMAT_STR mappings to libxfs xfs: move XFS_AG_BTREE_CMP_FORMAT_STR mappings to libxfs xfs: fix symbolic enum printing in ftrace output xfs: fix function pointer type in ftrace format xfs: Fix x32 ioctls when cmd numbers differ from ia32. xfs: Fix bulkstat compat ioctls on x32 userspace. xfs: Align compat attrlist_by_handle with native implementation. xfs: require both realtime inodes to mount xfs: cache minimum realtime summary level xfs: count inode blocks correctly in inobt scrub xfs: precalculate cluster alignment in inodes and blocks xfs: precalculate inodes and blocks per inode cluster xfs: add a block to inode count converter xfs: remove xfs_rmap_ag_owner and friends xfs: const-ify xfs_owner_info arguments xfs: streamline defer op type handling xfs: idiotproof defer op type configuration ... |
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Linus Torvalds
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e01799ac56 |
\n
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Merge tag 'fs_for_4.21-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/jack/linux-fs
Pull ext2, udf, and quota update from Jan Kara:
"Some ext2 cleanups, a fix for UDF crash on corrupted media, and one
quota locking fix"
* tag 'fs_for_4.21-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/jack/linux-fs:
quota: Lock s_umount in exclusive mode for Q_XQUOTA{ON,OFF} quotactls.
udf: Fix BUG on corrupted inode
ext2: change reusable parameter to true when calling mb_cache_entry_create()
ext2: remove redundant condition check
ext2: avoid unnecessary operation in ext2_error()
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Linus Torvalds
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4b0a383ad7 |
\n
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Linus Torvalds
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4de3aea385 |
dlm for 4.21
This set is entirely trivial fixes, mainly around correct cleanup on error paths and improved error checks. One patch adds scheduling in a potentially long recovery loop. -----BEGIN PGP SIGNATURE----- iQIcBAABAgAGBQJcGnvKAAoJEDgbc8f8gGmq4hcP/0vhF9y+SLXDkvm989n9QBMe elJ5KhxeHQgYDScv2Nbth9heTGMw2OFzDAUSMRXD45eYy8EjM12Gl8Dz4y8pQBne 5ENeibzPYmD2Smvtyq5T/45HpErlM5NmcefICumaC9WNRQBei/6dD3UEteRnAZbC qyNPr9/bqFSkMCzJzKRsjfduk5GTYB5FQzIOeHvwn3dShPtTETn+zF5MH/mpswBP LEtimOZdXVUZzdmbAuOMOfAMLoRdpzLFNxC10g//JyZAbG3dQZdpEdn98iu0oR3c Y7JUs6JLtkB/FP46v0Ay7xJ7amx8dNnKbEj7UzqveSgo3PxPbIZYa3VUdXfdP/9T J/+k88behzQ5NG+pETKA51+DaVJ50nAVeQqX001dgUi095esjqmyQDPbDwohsRvf z+gb0vqwtsbS58/1tRcfRdrzYl/FSHuEcif0rwOwTnqAjOjz+V89wNZo2HbLbOeK 8yyeeGd+jMxom9xwHV79/IPo3U2P5iU/40AfJXW2MMnudbq+kfE7GdNXu2MWPQ1P yhmwvELoNG8aD93nX14HMhHFUl+Lv9p5VW/RhySFevt/9TKRiwlG1tw7e/XhNJjs P8K8ry394FlPOPYeAsiabOI9dUi3Divm7/7ChUFSqQUc7wAHjpLbUlFczYCnVz3W rb/GfmgBFcJQtzURXDnx =p4Yr -----END PGP SIGNATURE----- Merge tag 'dlm-4.21' of git://git.kernel.org/pub/scm/linux/kernel/git/teigland/linux-dlm Pull dlm updates from David Teigland: "This set is entirely trivial fixes, mainly around correct cleanup on error paths and improved error checks. One patch adds scheduling in a potentially long recovery loop" * tag 'dlm-4.21' of git://git.kernel.org/pub/scm/linux/kernel/git/teigland/linux-dlm: dlm: fix invalid cluster name warning dlm: NULL check before some freeing functions is not needed dlm: NULL check before kmem_cache_destroy is not needed dlm: fix missing idr_destroy for recover_idr dlm: memory leaks on error path in dlm_user_request() dlm: lost put_lkb on error path in receive_convert() and receive_unlock() dlm: possible memory leak on error path in create_lkb() dlm: fixed memory leaks after failed ls_remove_names allocation dlm: fix possible call to kfree() for non-initialized pointer dlm: Don't swamp the CPU with callbacks queued during recovery dlm: don't leak kernel pointer to userspace dlm: don't allow zero length names dlm: fix invalid free |
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Linus Torvalds
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32ee34edda |
for-4.21-tag
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Merge tag 'for-4.21-tag' of git://git.kernel.org/pub/scm/linux/kernel/git/kdave/linux
Pull btrfs updates from David Sterba:
"New features:
- swapfile support - after a long time it's here, with some
limitations where COW design does not work well with the swap
implementation (nodatacow file, no compression, cannot be
snapshotted, not possible on multiple devices, ...), as this is the
most restricted but working setup, we'll try to improve that in the
future
- metadata uuid - an optional incompat feature to assign a new
filesystem UUID without overwriting all metadata blocks, stored
only in superblock
- more balance messages are printed to system log, initial is in the
format of the command line that would be used to start it
Fixes:
- tag pages of a snapshot to better separate pages that are involved
in the snapshot (and need to get synced) from newly dirtied pages
that could slow down or even livelock the snapshot operation
- improved check of filesystem id associated with a device during
scan to detect duplicate devices that could be mixed up during
mount
- fix device replace state transitions, eg. when it ends up
interrupted and reboot tries to restart balance too, or when
start/cancel ioctls race
- fix a crash due to a race when quotas are enabled during snapshot
creation
- GFP_NOFS/memalloc_nofs_* fixes due to GFP_KERNEL allocations in
transaction context
- fix fsync of files with multiple hard links in new directories
- fix race of send with transaction commits that create snapshots
Core changes:
- cleanups:
* further removals of now-dead fsync code
* core function for finding free extent has been split and
provides a base for further cleanups to make the logic more
understandable
* removed lot of indirect callbacks for data and metadata inodes
* simplified refcounting and locking for cloned extent buffers
* removed redundant function arguments
* defines converted to enums where appropriate
- separate reserve for delayed refs from global reserve, update logic
to do less trickery and ad-hoc heuristics, move out some related
expensive operations from transaction commit or file truncate
- dev-replace switched from custom locking scheme to semaphore
- remove first phase of balance that tried to make some space for the
relocation by calling shrink and grow, this did not work as
expected and only introduced more error states due to potential
resize failures, slightly improves the runtime as the chunks on all
devices are not needlessly enumerated
- clone and deduplication now use generic helper that adds a few more
checks that were missing from the original btrfs implementation of
the ioctls"
* tag 'for-4.21-tag' of git://git.kernel.org/pub/scm/linux/kernel/git/kdave/linux: (125 commits)
btrfs: Fix typos in comments and strings
btrfs: improve error handling of btrfs_add_link
Btrfs: use generic_remap_file_range_prep() for cloning and deduplication
btrfs: Refactor main loop in extent_readpages
btrfs: Remove 1st shrink/grow phase from balance
Btrfs: send, fix race with transaction commits that create snapshots
Btrfs: use nofs context when initializing security xattrs to avoid deadlock
btrfs: run delayed items before dropping the snapshot
btrfs: catch cow on deleting snapshots
btrfs: extent-tree: cleanup one-shot usage of @blocksize in do_walk_down
Btrfs: scrub, move setup of nofs contexts higher in the stack
btrfs: scrub: move scrub_setup_ctx allocation out of device_list_mutex
btrfs: scrub: pass fs_info to scrub_setup_ctx
btrfs: fix truncate throttling
btrfs: don't run delayed refs in the end transaction logic
btrfs: rework btrfs_check_space_for_delayed_refs
btrfs: add new flushing states for the delayed refs rsv
btrfs: update may_commit_transaction to use the delayed refs rsv
btrfs: introduce delayed_refs_rsv
btrfs: only track ref_heads in delayed_ref_updates
...
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Linus Torvalds
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7bbbf2c2fc |
We've got 11 patches for this merge window:
- Enhancements and performance improvements to journal replay (Abhi Das)
- Cleanup of gfs2_is_ordered and gfs2_is_writeback (Andreas Gruenbacher)
- Fix a potential double-free in inode creation (Andreas Gruenbacher)
- Fix the bitmap search loop that was searching too far (Andreas Gruenbacher)
- Various cleanups (Andreas Gruenbacher, Bob Peterson)
- Implement Steve Whitehouse's patch to dump nrpages for inodes (Bob Peterson)
- Fix a withdraw bug where stuffed journaled data files didn't allocate
enough journal space to be grown (Bob Peterson)
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Merge tag 'gfs2-4.21.fixes' of git://git.kernel.org/pub/scm/linux/kernel/git/gfs2/linux-gfs2
Pull gfs2 updates from Bob Peterson:
- Enhancements and performance improvements to journal replay (Abhi
Das)
- Cleanup of gfs2_is_ordered and gfs2_is_writeback (Andreas
Gruenbacher)
- Fix a potential double-free in inode creation (Andreas Gruenbacher)
- Fix the bitmap search loop that was searching too far (Andreas
Gruenbacher)
- Various cleanups (Andreas Gruenbacher, Bob Peterson)
- Implement Steve Whitehouse's patch to dump nrpages for inodes (Bob
Peterson)
- Fix a withdraw bug where stuffed journaled data files didn't allocate
enough journal space to be grown (Bob Peterson)
* tag 'gfs2-4.21.fixes' of git://git.kernel.org/pub/scm/linux/kernel/git/gfs2/linux-gfs2:
gfs2: take jdata unstuff into account in do_grow
gfs2: Dump nrpages for inodes and their glocks
gfs2: Fix loop in gfs2_rbm_find
gfs2: Get rid of potential double-freeing in gfs2_create_inode
gfs2: Remove vestigial bd_ops
gfs2: read journal in large chunks to locate the head
gfs2: add a helper function to get_log_header that can be used elsewhere
gfs2: changes to gfs2_log_XXX_bio
gfs2: add more timing info to journal recovery process
gfs2: Fix the gfs2_invalidatepage description
gfs2: Clean up gfs2_is_{ordered,writeback}
|
|
|
Linus Torvalds
|
b71acb0e37 |
Merge branch 'linus' of git://git.kernel.org/pub/scm/linux/kernel/git/herbert/crypto-2.6
Pull crypto updates from Herbert Xu: "API: - Add 1472-byte test to tcrypt for IPsec - Reintroduced crypto stats interface with numerous changes - Support incremental algorithm dumps Algorithms: - Add xchacha12/20 - Add nhpoly1305 - Add adiantum - Add streebog hash - Mark cts(cbc(aes)) as FIPS allowed Drivers: - Improve performance of arm64/chacha20 - Improve performance of x86/chacha20 - Add NEON-accelerated nhpoly1305 - Add SSE2 accelerated nhpoly1305 - Add AVX2 accelerated nhpoly1305 - Add support for 192/256-bit keys in gcmaes AVX - Add SG support in gcmaes AVX - ESN for inline IPsec tx in chcr - Add support for CryptoCell 703 in ccree - Add support for CryptoCell 713 in ccree - Add SM4 support in ccree - Add SM3 support in ccree - Add support for chacha20 in caam/qi2 - Add support for chacha20 + poly1305 in caam/jr - Add support for chacha20 + poly1305 in caam/qi2 - Add AEAD cipher support in cavium/nitrox" * 'linus' of git://git.kernel.org/pub/scm/linux/kernel/git/herbert/crypto-2.6: (130 commits) crypto: skcipher - remove remnants of internal IV generators crypto: cavium/nitrox - Fix build with !CONFIG_DEBUG_FS crypto: salsa20-generic - don't unnecessarily use atomic walk crypto: skcipher - add might_sleep() to skcipher_walk_virt() crypto: x86/chacha - avoid sleeping under kernel_fpu_begin() crypto: cavium/nitrox - Added AEAD cipher support crypto: mxc-scc - fix build warnings on ARM64 crypto: api - document missing stats member crypto: user - remove unused dump functions crypto: chelsio - Fix wrong error counter increments crypto: chelsio - Reset counters on cxgb4 Detach crypto: chelsio - Handle PCI shutdown event crypto: chelsio - cleanup:send addr as value in function argument crypto: chelsio - Use same value for both channel in single WR crypto: chelsio - Swap location of AAD and IV sent in WR crypto: chelsio - remove set but not used variable 'kctx_len' crypto: ux500 - Use proper enum in hash_set_dma_transfer crypto: ux500 - Use proper enum in cryp_set_dma_transfer crypto: aesni - Add scatter/gather avx stubs, and use them in C crypto: aesni - Introduce partial block macro .. |
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Linus Torvalds
|
c06e9ef691 |
pstore improvements and refactorings
- Improve compression handling - Refactor argument handling during initialization - Avoid needless locking for saner EFI backend handling - Add more kern-doc and improve debugging output -----BEGIN PGP SIGNATURE----- Comment: Kees Cook <kees@outflux.net> iQJKBAABCgA0FiEEpcP2jyKd1g9yPm4TiXL039xtwCYFAlwYNbMWHGtlZXNjb29r QGNocm9taXVtLm9yZwAKCRCJcvTf3G3AJprSD/476vQkmv+3Q7sBexzi8lD2Qz4A PVmeKGtHc2SUEIeBSdTTCGd2LvcgMYvoPyBVOgKc7k4S2Tuyef5zafpLTuR/rQHb FClZ9uKdHFN+Yfr/NhAlwGecHjnYSlAE/dxpeGywUox3kqohVx2VOsb85sSpOV1C l41PaLJwdEJ1ShNqI9ohKFUOjjhSFfUvk8D+LDnO6CzroFNzt/wCE4I7sP0WQ6v4 9/4HzVdtLb9x5J21uLiYL6GavxWKF0qzLQtHlNF68a4Im4dtNkGJsSFqiblJ89N2 0AfZdKAUo9sDGkV2XJNg3pC3EjnPiLAY7vOJvMriT2tPiDCB+GZ0fu4rreN3IjhY CqXclUX/W72wQfQdwuQwCjFc+Clc8h6HC3HCYwWNoutpwX2s2pRT0plpl3frNELT Z1WcpXk5053ZlmAkNuSH3a8CeuDGGjZlACHXF/OH5Asx6RHKruGw1LckGUHCJ5EQ 8+2gJOmQk0jhStp9jPUbwVfFGdyMIS5Ns/hwcu0WIvjaeCfPb4jJKXk+aRc1U8qA I0eCJAyrU90QXf/yEUTWi0tTkGzB3xwRxX490MS2pgtlWHgHndpk6QIebZh9XWJV cxzGE7qyS5k/jji+9KaksYNXT5CoZnO/7EGAIWiNZ8hDhZVrcGdsfL2icDwQ7URO fhZGeQqPVZYN/fdZ7A== =woxs -----END PGP SIGNATURE----- Merge tag 'pstore-v4.21-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/kees/linux Pull pstore updates from Kees Cook: "Improvements and refactorings: - Improve compression handling - Refactor argument handling during initialization - Avoid needless locking for saner EFI backend handling - Add more kern-doc and improve debugging output" * tag 'pstore-v4.21-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/kees/linux: pstore/ram: Avoid NULL deref in ftrace merging failure path pstore: Convert buf_lock to semaphore pstore: Fix bool initialization/comparison pstore/ram: Do not treat empty buffers as valid pstore/ram: Simplify ramoops_get_next_prz() arguments pstore: Map PSTORE_TYPE_* to strings pstore: Replace open-coded << with BIT() pstore: Improve and update some comments and status output pstore/ram: Add kern-doc for struct persistent_ram_zone pstore/ram: Report backend assignments with finer granularity pstore/ram: Standardize module name in ramoops pstore: Avoid duplicate call of persistent_ram_zap() pstore: Remove needless lock during console writes pstore: Do not use crash buffer for decompression |
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Linus Torvalds
|
792bf4d871 |
Merge branch 'core-rcu-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip
Pull RCU updates from Ingo Molnar:
"The biggest RCU changes in this cycle were:
- Convert RCU's BUG_ON() and similar calls to WARN_ON() and similar.
- Replace calls of RCU-bh and RCU-sched update-side functions to
their vanilla RCU counterparts. This series is a step towards
complete removal of the RCU-bh and RCU-sched update-side functions.
( Note that some of these conversions are going upstream via their
respective maintainers. )
- Documentation updates, including a number of flavor-consolidation
updates from Joel Fernandes.
- Miscellaneous fixes.
- Automate generation of the initrd filesystem used for rcutorture
testing.
- Convert spin_is_locked() assertions to instead use lockdep.
( Note that some of these conversions are going upstream via their
respective maintainers. )
- SRCU updates, especially including a fix from Dennis Krein for a
bag-on-head-class bug.
- RCU torture-test updates"
* 'core-rcu-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip: (112 commits)
rcutorture: Don't do busted forward-progress testing
rcutorture: Use 100ms buckets for forward-progress callback histograms
rcutorture: Recover from OOM during forward-progress tests
rcutorture: Print forward-progress test age upon failure
rcutorture: Print time since GP end upon forward-progress failure
rcutorture: Print histogram of CB invocation at OOM time
rcutorture: Print GP age upon forward-progress failure
rcu: Print per-CPU callback counts for forward-progress failures
rcu: Account for nocb-CPU callback counts in RCU CPU stall warnings
rcutorture: Dump grace-period diagnostics upon forward-progress OOM
rcutorture: Prepare for asynchronous access to rcu_fwd_startat
torture: Remove unnecessary "ret" variables
rcutorture: Affinity forward-progress test to avoid housekeeping CPUs
rcutorture: Break up too-long rcu_torture_fwd_prog() function
rcutorture: Remove cbflood facility
torture: Bring any extra CPUs online during kernel startup
rcutorture: Add call_rcu() flooding forward-progress tests
rcutorture/formal: Replace synchronize_sched() with synchronize_rcu()
tools/kernel.h: Replace synchronize_sched() with synchronize_rcu()
net/decnet: Replace rcu_barrier_bh() with rcu_barrier()
...
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Linus Torvalds
|
c2f1f3e0e1 |
Merge git://git.kernel.org/pub/scm/linux/kernel/git/davem/sparc-next
Pull sparc updates from David Miller: - Automatic system call table generation, from Firoz Khan. - Clean up accesses to the OF device names by using full_name instead of path_component_name. * git://git.kernel.org/pub/scm/linux/kernel/git/davem/sparc-next: ALSA: sparc: Use of_node_name_eq for node name comparisons sbus: Use of_node_name_eq for node name comparisons sparc: generate uapi header and system call table files sparc: add system call table generation support sparc: add __NR_syscalls along with NR_syscalls sparc: move __IGNORE* entries to non uapi header sparc: Use DT node full_name instead of name for resources sparc: Remove unused leon_trans_init sparc: Use device_type helpers to access the node type sparc: Use of_node_name_eq for node name comparisons sparc: Convert to using %pOFn instead of device_node.name sparc: prom: use property "name" directly to construct node names of: Drop full path from full_name for PDT systems sparc: Convert to using %pOF instead of full_name fs/openpromfs: Use of_node_name_eq for node name comparisons fs/openpromfs: use full_name instead of path_component_name |
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Linus Torvalds
|
eaa7649971 |
SPI NOR Changes
Core changes:
- Parse the 4BAIT SFDP section
- Add a bunch of SPI NOR entries to the flash_info table
- Add the concept of SFDP fixups and use it to fix a bug on MX25L25635F
- A bunch of minor cleanups/comestic changes
NAND changes:
NAND core changes:
- kernel-doc miscellaneous fixes.
- Third batch of fixes/cleanup to the raw NAND core impacting various
controller drivers (ams-delta, marvell, fsmc, denali, tegra, vf610):
* Stopping to pass mtd_info objects to internal functions
* Reorganizing code to avoid forward declarations
* Dropping useless test in nand_legacy_set_defaults()
* Moving nand_exec_op() to internal.h
* Adding nand_[de]select_target() helpers
* Passing the CS line to be selected in struct nand_operation
* Making ->select_chip() optional when ->exec_op() is implemented
* Deprecating the ->select_chip() hook
* Moving the ->exec_op() method to nand_controller_ops
* Moving ->setup_data_interface() to nand_controller_ops
* Deprecating the dummy_controller field
* Fixing JEDEC detection
* Providing a helper for polling GPIO R/B pin
Raw NAND chip drivers changes:
- Macronix:
* Flagging 1.8V AC chips with a broken GET_FEATURES(TIMINGS)
Raw NAND controllers drivers changes:
- Ams-delta:
* Fixing the error path
* SPDX tag added
* May be compiled with COMPILE_TEST=y
* Conversion to ->exec_op() interface
* Dropping .IOADDR_R/W use
* Use GPIO API for data I/O
- Denali:
* Removing denali_reset_banks()
* Removing ->dev_ready() hook
* Including <linux/bits.h> instead of <linux/bitops.h>
* Changes to comply with the above fixes/cleanup done in the core.
- FSMC:
* Adding an SPDX tag to replace the license text
* Making conversion from chip to fsmc consistent
* Fixing unchecked return value in fsmc_read_page_hwecc
* Changes to comply with the above fixes/cleanup done in the core.
- Marvell:
* Preventing timeouts on a loaded machine (fix)
* Changes to comply with the above fixes/cleanup done in the core.
- OMAP2:
* Pass the parent of pdev to dma_request_chan() (fix)
- R852:
* Use generic DMA API
- sh_flctl:
* Converting to SPDX identifiers
- Sunxi:
* Write pageprog related opcodes to the right register: WCMD_SET (fix)
- Tegra:
* Stop implementing ->select_chip()
- VF610:
* Adding an SPDX tag to replace the license text
* Changes to comply with the above fixes/cleanup done in the core.
- Various trivial/spelling/coding style fixes.
SPI-NAND drivers changes:
- Removing the depreacated mt29f_spinand driver from staging.
- Adding support for:
* Toshiba TC58CVG2S0H
* GigaDevice GD5FxGQ4xA
* Winbond W25N01GV
JFFS2 changes:
- Fix a lockdep issue
MTD changes:
- Rework the physmap driver to merge gpio-addr-flash and physmap_of
in it
- Add a new compatible for RedBoot partitions
- Make sub-partitions RW if the parent partition was RO because of a
mis-alignment
- Add pinctrl support to the
- Addition of /* fall-through */ comments where appropriate
- Various minor fixes and cleanups
Other changes:
- Update my email address
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Merge tag 'mtd/for-4.21' of git://git.infradead.org/linux-mtd
Pull mtd updates from Boris Brezillon:
"SPI NOR Core changes:
- Parse the 4BAIT SFDP section
- Add a bunch of SPI NOR entries to the flash_info table
- Add the concept of SFDP fixups and use it to fix a bug on MX25L25635F
- A bunch of minor cleanups/comestic changes
NAND core changes:
- kernel-doc miscellaneous fixes.
- Third batch of fixes/cleanup to the raw NAND core impacting various
controller drivers (ams-delta, marvell, fsmc, denali, tegra,
vf610):
* Stop to pass mtd_info objects to internal functions
* Reorganize code to avoid forward declarations
* Drop useless test in nand_legacy_set_defaults()
* Move nand_exec_op() to internal.h
* Add nand_[de]select_target() helpers
* Pass the CS line to be selected in struct nand_operation
* Make ->select_chip() optional when ->exec_op() is implemented
* Deprecate the ->select_chip() hook
* Move the ->exec_op() method to nand_controller_ops
* Move ->setup_data_interface() to nand_controller_ops
* Deprecate the dummy_controller field
* Fix JEDEC detection
* Provide a helper for polling GPIO R/B pin
Raw NAND chip drivers changes:
- Macronix:
* Flag 1.8V AC chips with a broken GET_FEATURES(TIMINGS)
Raw NAND controllers drivers changes:
- Ams-delta:
* Fix the error path
* SPDX tag added
* May be compiled with COMPILE_TEST=y
* Conversion to ->exec_op() interface
* Drop .IOADDR_R/W use
* Use GPIO API for data I/O
- Denali:
* Remove denali_reset_banks()
* Remove ->dev_ready() hook
* Include <linux/bits.h> instead of <linux/bitops.h>
* Changes to comply with the above fixes/cleanup done in the core.
- FSMC:
* Add an SPDX tag to replace the license text
* Make conversion from chip to fsmc consistent
* Fix unchecked return value in fsmc_read_page_hwecc
* Changes to comply with the above fixes/cleanup done in the core.
- Marvell:
* Prevent timeouts on a loaded machine (fix)
* Changes to comply with the above fixes/cleanup done in the core.
- OMAP2:
* Pass the parent of pdev to dma_request_chan() (fix)
- R852:
* Use generic DMA API
- sh_flctl:
* Convert to SPDX identifiers
- Sunxi:
* Write pageprog related opcodes to the right register: WCMD_SET (fix)
- Tegra:
* Stop implementing ->select_chip()
- VF610:
* Add an SPDX tag to replace the license text
* Changes to comply with the above fixes/cleanup done in the core.
- Various trivial/spelling/coding style fixes.
SPI-NAND drivers changes:
- Remove the depreacated mt29f_spinand driver from staging.
- Add support for:
* Toshiba TC58CVG2S0H
* GigaDevice GD5FxGQ4xA
* Winbond W25N01GV
JFFS2 changes:
- Fix a lockdep issue
MTD changes:
- Rework the physmap driver to merge gpio-addr-flash and physmap_of
in it
- Add a new compatible for RedBoot partitions
- Make sub-partitions RW if the parent partition was RO because of a
mis-alignment
- Add pinctrl support to the
- Addition of /* fall-through */ comments where appropriate
- Various minor fixes and cleanups
Other changes:
- Update my email address"
* tag 'mtd/for-4.21' of git://git.infradead.org/linux-mtd: (108 commits)
mtd: rawnand: sunxi: Write pageprog related opcodes to WCMD_SET
MAINTAINERS: Update my email address
mtd: rawnand: marvell: prevent timeouts on a loaded machine
mtd: rawnand: omap2: Pass the parent of pdev to dma_request_chan()
mtd: rawnand: Fix JEDEC detection
mtd: spi-nor: Add support for is25lp016d
mtd: spi-nor: parse SFDP 4-byte Address Instruction Table
mtd: spi-nor: Add 4B_OPCODES flag to is25lp256
mtd: spi-nor: Add an SPDX tag to spi-nor.{c,h}
mtd: spi-nor: Make the enable argument passed to set_byte() a bool
mtd: spi-nor: Stop passing flash_info around
mtd: spi-nor: Avoid forward declaration of internal functions
mtd: spi-nor: Drop inline on all internal helpers
mtd: spi-nor: Add a post BFPT fixup for MX25L25635E
mtd: spi-nor: Add a post BFPT parsing fixup hook
mtd: spi-nor: Add the SNOR_F_4B_OPCODES flag
mtd: spi-nor: cast to u64 to avoid uint overflows
mtd: spi-nor: Add support for IS25LP032/064
mtd: spi-nor: add entry for mt35xu512aba flash
mtd: spi-nor: add macros related to MICRON flash
...
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Linus Torvalds
|
4971f090aa |
drm pull request for 4.21-rc1
-----BEGIN PGP SIGNATURE----- iQIcBAABAgAGBQJcExwOAAoJEAx081l5xIa+euIP/1NZZvSB+bsCtOwDG8I6uWsS OU5JUZ8q2dqyyFagRxzlkeSt3uWJqKp5NyNwuc9z/5u6AGF+3/97D0J1lG6Os/st 4abF6NadivYJ4cXhJ1ddIHOFMVDcAsyMWNDb93NwPwncCsQ0jt5FFOsrCyj6BGY+ ihHFlHrIyDrbBGDHz+u1E/EO5WkNnaLDoC+/k2fTRWCNI3bQL3O+orsYTI6S2uvU lQJnRfYAllgLD2p1k/rrBHcHXBv50roR0e8uhGmbdhGdp5bEW30UGBLHXxQjjSVy fQCwFwTO8X6zoxU53Zbbk+MVrp+jkTHcGKViHRuLkaHzE5mX26UXDwlXdN32ZUbK yHOJp+uDaWXX7MIz0LsB9Iqj2+eIUoFaIJMoZTMGVTNvqnTxKnoHnjAtbTH2u258 teFgmy4BIgPgo2kwEnBEZjCapou0Eivyut2wq8bTAB2Fe8LwURJpr3cioTtMLlUO L5/PoD27eFvBCAeFrQIwF3b2XiQEnBpXocmilEwP1xDMPgoyeePAfIF2iEpDvi0U jce3rLd2yVvo92xYUgoHkVTD8si/pKKnZ1D0U3+RI6pxK6s0HJEHjcNEMdvdm+2S 4qgvBQV3wlWFkXEK8PR5BHPoLntg18tKon/BTLBjgGkN9E1o9fWs1/s6KQGY4xdo l3Vvfx2LTdkgEoBssSwB =wh4W -----END PGP SIGNATURE----- Merge tag 'drm-next-2018-12-14' of git://anongit.freedesktop.org/drm/drm Pull drm updates from Dave Airlie: "Core: - shared fencing staging removal - drop transactional atomic helpers and move helpers to new location - DP/MST atomic cleanup - Leasing cleanups and drop EXPORT_SYMBOL - Convert drivers to atomic helpers and generic fbdev. - removed deprecated obj_ref/unref in favour of get/put - Improve dumb callback documentation - MODESET_LOCK_BEGIN/END helpers panels: - CDTech panels, Banana Pi Panel, DLC1010GIG, - Olimex LCD-O-LinuXino, Samsung S6D16D0, Truly NT35597 WQXGA, - Himax HX8357D, simulated RTSM AEMv8. - GPD Win2 panel - AUO G101EVN010 vgem: - render node support ttm: - move global init out of drivers - fix LRU handling for ghost objects - Support for simultaneous submissions to multiple engines scheduler: - timeout/fault handling changes to help GPU recovery - helpers for hw with preemption support i915: - Scaler/Watermark fixes - DP MST + powerwell fixes - PSR fixes - Break long get/put shmemfs pages - Icelake fixes - Icelake DSI video mode enablement - Engine workaround improvements amdgpu: - freesync support - GPU reset enabled on CI, VI, SOC15 dGPUs - ABM support in DC - KFD support for vega12/polaris12 - SDMA paging queue on vega - More amdkfd code sharing - DCC scanout on GFX9 - DC kerneldoc - Updated SMU firmware for GFX8 chips - XGMI PSP + hive reset support - GPU reset - DC trace support - Powerplay updates for newer Polaris - Cursor plane update fast path - kfd dma-buf support virtio-gpu: - add EDID support vmwgfx: - pageflip with damage support nouveau: - Initial Turing TU104/TU106 modesetting support msm: - a2xx gpu support for apq8060 and imx5 - a2xx gpummu support - mdp4 display support for apq8060 - DPU fixes and cleanups - enhanced profiling support - debug object naming interface - get_iova/page pinning decoupling tegra: - Tegra194 host1x, VIC and display support enabled - Audio over HDMI for Tegra186 and Tegra194 exynos: - DMA/IOMMU refactoring - plane alpha + blend mode support - Color format fixes for mixer driver rcar-du: - R8A7744 and R8A77470 support - R8A77965 LVDS support imx: - fbdev emulation fix - multi-tiled scalling fixes - SPDX identifiers rockchip - dw_hdmi support - dw-mipi-dsi + dual dsi support - mailbox read size fix qxl: - fix cursor pinning vc4: - YUV support (scaling + cursor) v3d: - enable TFU (Texture Formatting Unit) mali-dp: - add support for linear tiled formats sun4i: - Display Engine 3 support - H6 DE3 mixer 0 support - H6 display engine support - dw-hdmi support - H6 HDMI phy support - implicit fence waiting - BGRX8888 support meson: - Overlay plane support - implicit fence waiting - HDMI 1.4 4k modes bridge: - i2c fixes for sii902x" * tag 'drm-next-2018-12-14' of git://anongit.freedesktop.org/drm/drm: (1403 commits) drm/amd/display: Add fast path for cursor plane updates drm/amdgpu: Enable GPU recovery by default for CI drm/amd/display: Fix duplicating scaling/underscan connector state drm/amd/display: Fix unintialized max_bpc state values Revert "drm/amd/display: Set RMX_ASPECT as default" drm/amdgpu: Fix stub function name drm/msm/dpu: Fix clock issue after bind failure drm/msm/dpu: Clean up dpu_media_info.h static inline functions drm/msm/dpu: Further cleanups for static inline functions drm/msm/dpu: Cleanup the debugfs functions drm/msm/dpu: Remove dpu_irq and unused functions drm/msm: Make irq_postinstall optional drm/msm/dpu: Cleanup callers of dpu_hw_blk_init drm/msm/dpu: Remove unused functions drm/msm/dpu: Remove dpu_crtc_is_enabled() drm/msm/dpu: Remove dpu_crtc_get_mixer_height drm/msm/dpu: Remove dpu_dbg drm/msm: dpu: Remove crtc_lock drm/msm: dpu: Remove vblank_requested flag from dpu_crtc drm/msm: dpu: Separate crtc assignment from vblank enable ... |
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Linus Torvalds
|
3c730b1041 |
Merge branch 'fixes' of git://git.kernel.org/pub/scm/linux/kernel/git/viro/vfs
Pull vfs fixes from Al Viro: "A couple of fixes - no common topic ;-)" [ The aio spectre patch also came in from Jens, so now we have that doubly fixed .. ] * 'fixes' of git://git.kernel.org/pub/scm/linux/kernel/git/viro/vfs: proc/sysctl: don't return ENOMEM on lookup when a table is unregistering aio: fix spectre gadget in lookup_ioctx |
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Christian Brauner
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94f82008ce |
Revert "vfs: Allow userns root to call mknod on owned filesystems."
This reverts commit |
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Omar Sandoval
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65eed012d1 |
xfs: reallocate realtime summary cache on growfs
At mount time, we allocate m_rsum_cache with the number of realtime
bitmap blocks. However, xfs_growfs_rt() can increase the number of
realtime bitmap blocks. Using the cache after this happens may access
out of the bounds of the cache. Fix it by reallocating the cache in this
case.
Fixes:
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Linus Torvalds
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783619556a |
an important smb3 fix for an regression to some servers introduced by compounding optimization to rmdir
-----BEGIN PGP SIGNATURE----- iQGzBAABCgAdFiEE6fsu8pdIjtWE/DpLiiy9cAdyT1EFAlwcW2IACgkQiiy9cAdy T1FaLAv/Vs0QhYATaJHkvmjk7EdFoXTZST2wYxPcPSrOfWbCaMjsKREwPVUjOCiW W//zL/Qbi0FSVMWdoskJP0KQC5rAhUSxlvtDxrpzqszfeJprIs0oL5IRlOwxNdtT F9/i8+s/AuYq0TTn15UtqZHS6wZdWcerdttWV1V/97hEwcO5Xg0pEtyCmLPf7k8W wNdxCAQFZ9j2pDVyuJO3a0+Tas34dc2t/cac12h0qeXbrE6e88bQWa6bpEKSvCKr cMU94pkajCKeelZOhq+ga7cCmlBJs6gt4sgsKEsoDn72tQCsWVH6p1N4+AxmLsZU bR65XodusR1WHMesSth7QraUk0pIQ4ZzMRPZJCkh9bSjaa+fxX1Up/sjn74q1prf DHJ/52rQrWK3hvETUZD2B6N9AEDN0swbqeCJRlUYlzG5OEdfit9qSgfTaRzYxVnX +tct7j+8mjzk+rsGuTXrQupPXUndPTcpUrKFp5db9Sejcx/Gw/atKhW6mVgL3LiR 8kVIraSV =+8yd -----END PGP SIGNATURE----- Merge tag '4.20-rc7-smb3-fixes' of git://git.samba.org/sfrench/cifs-2.6 Pull smb3 fix from Steve French: "An important smb3 fix for an regression to some servers introduced by compounding optimization to rmdir. This fix has been tested by multiple developers (including me) with the usual private xfstesting, but also by the new cifs/smb3 "buildbot" xfstest VMs (thank you Ronnie and Aurelien for good work on this automation). The automated testing has been updated so that it will catch problems like this in the future. Note that Pavel discovered (very recently) some unrelated but extremely important bugs in credit handling (smb3 flow control problem that can lead to disconnects/reconnects) when compounding, that I would have liked to send in ASAP but the complete testing of those two fixes may not be done in time and have to wait for 4.21" * tag '4.20-rc7-smb3-fixes' of git://git.samba.org/sfrench/cifs-2.6: smb3: Fix rmdir compounding regression to strict servers |
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Eric Sandeen
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3cc31fa65d |
iomap: don't search past page end in iomap_is_partially_uptodate
iomap_is_partially_uptodate() is intended to check wither blocks within the selected range of a not-uptodate page are uptodate; if the range we care about is up to date, it's an optimization. However, the iomap implementation continues to check all blocks up to from+count, which is beyond the page, and can even be well beyond the iop->uptodate bitmap. I think the worst that will happen is that we may eventually find a zero bit and return "not partially uptodate" when it would have otherwise returned true, and skip the optimization. Still, it's clearly an invalid memory access that must be fixed. So: fix this by limiting the search to within the page as is done in the non-iomap variant, block_is_partially_uptodate(). Zorro noticed thiswhen KASAN went off for 512 byte blocks on a 64k page system: BUG: KASAN: slab-out-of-bounds in iomap_is_partially_uptodate+0x1a0/0x1e0 Read of size 8 at addr ffff800120c3a318 by task fsstress/22337 Reported-by: Zorro Lang <zlang@redhat.com> Signed-off-by: Eric Sandeen <sandeen@redhat.com> Signed-off-by: Eric Sandeen <sandeen@sandeen.net> Reviewed-by: Darrick J. Wong <darrick.wong@oracle.com> Signed-off-by: Darrick J. Wong <darrick.wong@oracle.com> |
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Linus Torvalds
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f57b620a89 |
This pull request contains fixes for both UBI and UBIFS:
- Kconfig dependency fixes for our new auth feature - Fix for selecting the right compressor when creating a fs - Bugfix for a bug in UBIFS's O_TMPFILE implementation - Refcounting fixes for UBI -----BEGIN PGP SIGNATURE----- iQJKBAABCAA0FiEEdgfidid8lnn52cLTZvlZhesYu8EFAlwb+MAWHHJpY2hhcmRA c2lnbWEtc3Rhci5hdAAKCRBm+VmF6xi7wSIjD/9zyAQUaMXJzI/ct2SXXikyTgRi hmLbUhuIEZD/c3tDQMgb3XqL7yYkOt/QnfeMXpi/Fy9wAdKcOU9QCcL6TPfR9B+B v22VdDcsU5pp2Hcinm2Yz6v2OyYwchb2YShfMkiZSf0CKAhcsKZhaeqhug/Zq+w5 xZ6fMPvu8HhinBavq9OgSpPx892vlF1ypXHNeQNxwslz/gWKso47jtmXpz4LDX7+ s4+p+lagVJ0MHQ3fVhBvEplWr9zPKHvX8uGohADLsDp5bAqRyGNxBwqgGm6J6H7B UHuqUjUf19hUZEauwKugmPTM3Y0TkZjV472qsp9omx8w/XozVqfb4YgMBBE3Qwuy ZS7GcaGxf54WJbOJFQv7pS3DUmfOjQBnU7YAR7phMBDeOUfxRXWkuzIB+RkED+0d 7JjTGWQItdbTfXl2QWfSr/1rj45LNKmVPMAI2pKUBnC9dD9pktCcB90vTcrg2vjE 3U9GbqOVORZvHh2bcR0Y8uDUBOp4v7ybCc+OOTNVWuWQpckp79E/7dkVLbpoI12R xEgMEaCSXlwPUxQ/FrxKBWhOZprPXNMo4xw547SDBxMq0IKUniA+YoUxtN3FxhQ8 OiLkfcQ+5bove9qYfARaRC/hk5lpgMWebAGou/CkfTIPJsw3ZdlmL6HH6ag5i6fS fBHsVBdtv0ADSLXylg== =nZML -----END PGP SIGNATURE----- Merge tag 'upstream-4.20-rc7' of git://git.infradead.org/linux-ubifs Pull UBI/UBIFS fixes from Richard Weinberger: - Kconfig dependency fixes for our new auth feature - Fix for selecting the right compressor when creating a fs - Bugfix for a bug in UBIFS's O_TMPFILE implementation - Refcounting fixes for UBI * tag 'upstream-4.20-rc7' of git://git.infradead.org/linux-ubifs: ubifs: Handle re-linking of inodes correctly while recovery ubi: Do not drop UBI device reference before using ubi: Put MTD device after it is not used ubifs: Fix default compression selection in ubifs ubifs: Fix memory leak on error condition ubifs: auth: Add CONFIG_KEYS dependency ubifs: CONFIG_UBIFS_FS_AUTHENTICATION should depend on UBIFS_FS ubifs: replay: Fix high stack usage |
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Dave Chinner
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a837eca241 |
iomap: Revert "fs/iomap.c: get/put the page in iomap_page_create/release()"
This reverts commit
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Darrick J. Wong
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86d163dbfe |
xfs: stringify scrub types in ftrace output
Use __print_symbolic to print the scrub type in ftrace output. Signed-off-by: Darrick J. Wong <darrick.wong@oracle.com> Reviewed-by: Eric Sandeen <sandeen@redhat.com> |
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Darrick J. Wong
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c494213f30 |
xfs: stringify btree cursor types in ftrace output
Use __print_symbolic to print the btree type in ftrace output. Signed-off-by: Darrick J. Wong <darrick.wong@oracle.com> Reviewed-by: Eric Sandeen <sandeen@redhat.com> |
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Darrick J. Wong
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0357d21a6c |
xfs: move XFS_INODE_FORMAT_STR mappings to libxfs
Move XFS_INODE_FORMAT_STR to libxfs so that we don't forget to keep it updated, and add necessary TRACE_DEFINE_ENUM. Signed-off-by: Darrick J. Wong <darrick.wong@oracle.com> Reviewed-by: Eric Sandeen <sandeen@redhat.com> |
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Darrick J. Wong
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05c753c4cf |
xfs: move XFS_AG_BTREE_CMP_FORMAT_STR mappings to libxfs
Move XFS_AG_BTREE_CMP_FORMAT_STR to libxfs so that we don't forget to keep it updated, and TRACE_DEFINE_ENUM the values while we're at it. Signed-off-by: Darrick J. Wong <darrick.wong@oracle.com> Reviewed-by: Eric Sandeen <sandeen@redhat.com> |
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Darrick J. Wong
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85f8dff00a |
xfs: fix symbolic enum printing in ftrace output
ftrace's __print_symbolic() has a (very poorly documented) requirement that any enum values used in the symbol to string translation table be wrapped in a TRACE_DEFINE_ENUM so that the enum value can be encoded in the ftrace ring buffer. Fix this unsatisfied requirement. Signed-off-by: Darrick J. Wong <darrick.wong@oracle.com> Reviewed-by: Eric Sandeen <sandeen@redhat.com> |
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Darrick J. Wong
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7af8150f99 |
xfs: fix function pointer type in ftrace format
Use %pS instead of %pF in ftrace strings so that we record the actual function address instead of the function descriptor. Signed-off-by: Darrick J. Wong <darrick.wong@oracle.com> Reviewed-by: Eric Sandeen <sandeen@redhat.com> |
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Theodore Ts'o
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18f2c4fceb |
ext4: check for shutdown and r/o file system in ext4_write_inode()
If the file system has been shut down or is read-only, then ext4_write_inode() needs to bail out early. Also use jbd2_complete_transaction() instead of ext4_force_commit() so we only force a commit if it is needed. Signed-off-by: Theodore Ts'o <tytso@mit.edu> Cc: stable@kernel.org |
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Theodore Ts'o
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fde872682e |
ext4: force inode writes when nfsd calls commit_metadata()
Some time back, nfsd switched from calling vfs_fsync() to using a new commit_metadata() hook in export_operations(). If the file system did not provide a commit_metadata() hook, it fell back to using sync_inode_metadata(). Unfortunately doesn't work on all file systems. In particular, it doesn't work on ext4 due to how the inode gets journalled --- the VFS writeback code will not always call ext4_write_inode(). So we need to provide our own ext4_nfs_commit_metdata() method which calls ext4_write_inode() directly. Google-Bug-Id: 121195940 Signed-off-by: Theodore Ts'o <tytso@mit.edu> Cc: stable@kernel.org |
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Theodore Ts'o
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8a363970d1 |
ext4: avoid declaring fs inconsistent due to invalid file handles
If we receive a file handle, either from NFS or open_by_handle_at(2),
and it points at an inode which has not been initialized, and the file
system has metadata checksums enabled, we shouldn't try to get the
inode, discover the checksum is invalid, and then declare the file
system as being inconsistent.
This can be reproduced by creating a test file system via "mke2fs -t
ext4 -O metadata_csum /tmp/foo.img 8M", mounting it, cd'ing into that
directory, and then running the following program.
#define _GNU_SOURCE
#include <fcntl.h>
struct handle {
struct file_handle fh;
unsigned char fid[MAX_HANDLE_SZ];
};
int main(int argc, char **argv)
{
struct handle h = {{8, 1 }, { 12, }};
open_by_handle_at(AT_FDCWD, &h.fh, O_RDONLY);
return 0;
}
Google-Bug-Id: 120690101
Signed-off-by: Theodore Ts'o <tytso@mit.edu>
Cc: stable@kernel.org
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Theodore Ts'o
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a805622a75 |
ext4: include terminating u32 in size of xattr entries when expanding inodes
In ext4_expand_extra_isize_ea(), we calculate the total size of the xattr header, plus the xattr entries so we know how much of the beginning part of the xattrs to move when expanding the inode extra size. We need to include the terminating u32 at the end of the xattr entries, or else if there is uninitialized, non-zero bytes after the xattr entries and before the xattr values, the list of xattr entries won't be properly terminated. Reported-by: Steve Graham <stgraham2000@gmail.com> Signed-off-by: Theodore Ts'o <tytso@mit.edu> Cc: stable@kernel.org |
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Ronnie Sahlberg
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271b9c0c80 |
smb3: Fix rmdir compounding regression to strict servers
Some servers require that the setinfo matches the exact size,
and in this case compounding changes introduced by
commit
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Boris Brezillon
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f366d3854e |
Core changes:
- Parse the 4BAIT SFDP section - Add a bunch of SPI NOR entries to the flash_info table - Add the concept of SFDP fixups and use it to fix a bug on MX25L25635F - A bunch of minor cleanups/comestic changes -----BEGIN PGP SIGNATURE----- iQJQBAABCgA6FiEEKmCqpbOU668PNA69Ze02AX4ItwAFAlwVQUYcHGJvcmlzLmJy ZXppbGxvbkBib290bGluLmNvbQAKCRBl7TYBfgi3ACIYD/sG0+vRIKK8+NgNUHYy nzKICKvdnBrm2RWi+6va5n2pYggyNy1VhWEjmqWLupjxn7NGkjZiBilhfj8Iv6YN HScNy7FLHM6pxTKpsZKQLLGKvaUXODgvZwiw3L6T5T3JaJ5nlpE5g8jQy8sCzfjK pwKdrOw17caZgoY0bMe2ppCObIDLd+mY+WSHbo6tb4/fohpTX1l9QZYHjfgHU9vP CG0z3sU0JCNGXsbQMngfeuyXFjJ4OKdnklbVTeZl673AYtQMBhQEIGNVkVefuBP3 p8hU0CWRn0Yikc1HGTENvYCnQ7ju3z+16rnLxy3A5CPHhCDrTgUmM8HabYbh+0Si 0Y1wXpEOZ0OZQ7uMs2Q8SK0GLyxqdxkE0ibHgb7K/aLb+yg8oB7DB4Uenb06CiaQ KAZWGgWZlSondX+/GI7YcQozslFFCfixAw6H0kCpQW0/2piXNqsN5BOROEqjueXW xeMG0DNnzrQ6/vB9ukLESSB/YvVwfUvt6GSjqMSDdXwx6zyKSvHJ+chCxlK46+Hm zIVcvNT3mpwcuVnQOZZeCaiIrDUAySEq/8Ztp9O5/CfkzdQyMWxDPoY9A0HjL2p3 FmRN7aAB9jJcdHc2tLwcKPRepjliIUMLf0NXdTSizzQz8WJqULZRBN0VWW4sCbLc +tTisYjX8fYUz9+kHUcQ4XY16g== =JXhP -----END PGP SIGNATURE----- Merge tag 'spi-nor/for-4.21' of git://git.infradead.org/linux-mtd into mtd/next Core changes: - Parse the 4BAIT SFDP section - Add a bunch of SPI NOR entries to the flash_info table - Add the concept of SFDP fixups and use it to fix a bug on MX25L25635F - A bunch of minor cleanups/comestic changes |
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Boris Brezillon
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ccec4a4a4f |
Merge tag 'nand/for-4.21' of git://git.infradead.org/linux-mtd into mtd/next
NAND core changes: - kernel-doc miscellaneous fixes. - Third batch of fixes/cleanup to the raw NAND core impacting various controller drivers (ams-delta, marvell, fsmc, denali, tegra, vf610): * Stopping to pass mtd_info objects to internal functions * Reorganizing code to avoid forward declarations * Dropping useless test in nand_legacy_set_defaults() * Moving nand_exec_op() to internal.h * Adding nand_[de]select_target() helpers * Passing the CS line to be selected in struct nand_operation * Making ->select_chip() optional when ->exec_op() is implemented * Deprecating the ->select_chip() hook * Moving the ->exec_op() method to nand_controller_ops * Moving ->setup_data_interface() to nand_controller_ops * Deprecating the dummy_controller field * Fixing JEDEC detection * Providing a helper for polling GPIO R/B pin Raw NAND chip drivers changes: - Macronix: * Flagging 1.8V AC chips with a broken GET_FEATURES(TIMINGS) Raw NAND controllers drivers changes: - Ams-delta: * Fixing the error path * SPDX tag added * May be compiled with COMPILE_TEST=y * Conversion to ->exec_op() interface * Dropping .IOADDR_R/W use * Use GPIO API for data I/O - Denali: * Removing denali_reset_banks() * Removing ->dev_ready() hook * Including <linux/bits.h> instead of <linux/bitops.h> * Changes to comply with the above fixes/cleanup done in the core. - FSMC: * Adding an SPDX tag to replace the license text * Making conversion from chip to fsmc consistent * Fixing unchecked return value in fsmc_read_page_hwecc * Changes to comply with the above fixes/cleanup done in the core. - Marvell: * Preventing timeouts on a loaded machine (fix) * Changes to comply with the above fixes/cleanup done in the core. - OMAP2: * Pass the parent of pdev to dma_request_chan() (fix) - R852: * Use generic DMA API - sh_flctl: * Converting to SPDX identifiers - Sunxi: * Write pageprog related opcodes to the right register: WCMD_SET (fix) - Tegra: * Stop implementing ->select_chip() - VF610: * Adding an SPDX tag to replace the license text * Changes to comply with the above fixes/cleanup done in the core. - Various trivial/spelling/coding style fixes. SPI-NAND drivers changes: - Removing the depreacated mt29f_spinand driver from staging. - Adding support for: * Toshiba TC58CVG2S0H * GigaDevice GD5FxGQ4xA * Winbond W25N01GV |
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Nick Bowler
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a9d25bde1e |
xfs: Fix x32 ioctls when cmd numbers differ from ia32.
Several ioctl structs change size between native 32-bit (ia32) and x32 applications, because x32 follows the native 64-bit (amd64) integer alignment rules and uses 64-bit time_t. In these instances, the ioctl number changes so userspace simply gets -ENOTTY. This scenario can be handled by simply adding more cases. Looking at the different ioctls implemented here: - All the ones marked 'No size or alignment issue on any arch' should presumably all be fine. - All the ones under BROKEN_X86_ALIGNMENT are different under integer alignment rules. Since x32 matches amd64 here, we just need both sets of cases handled. - XFS_IOC_SWAPEXT has both integer alignment differences and time_t differences. Since x32 matches amd64 here, we need to add a case which calls the native implementation. - The remaining ioctls have neither 64-bit integers nor time_t, so x32 matches ia32 here and no change is required at this level. The bulkstat ioctl implementations have some pointer chasing which is handled separately. Signed-off-by: Nick Bowler <nbowler@draconx.ca> Reviewed-by: Darrick J. Wong <darrick.wong@oracle.com> Signed-off-by: Darrick J. Wong <darrick.wong@oracle.com> |
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Nick Bowler
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7ca860e3c1 |
xfs: Fix bulkstat compat ioctls on x32 userspace.
The bulkstat family of ioctls are problematic on x32, because there is a mixup of native 32-bit and 64-bit conventions. The xfs_fsop_bulkreq struct contains pointers and 32-bit integers so that matches the native 32-bit layout, and that means the ioctl implementation goes into the regular compat path on x32. However, the 'ubuffer' member of that struct in turn refers to either struct xfs_inogrp or xfs_bstat (or an array of these). On x32, those structures match the native 64-bit layout. The compat implementation writes out the 32-bit version of these structures. This is not the expected format for x32 userspace, causing problems. Fortunately the functions which actually output these xfs_inogrp and xfs_bstat structures have an easy way to select which output format is required, so we just need a little tweak to select the right format on x32. Signed-off-by: Nick Bowler <nbowler@draconx.ca> Reviewed-by: Darrick J. Wong <darrick.wong@oracle.com> Signed-off-by: Darrick J. Wong <darrick.wong@oracle.com> |
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Nick Bowler
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c456d64449 |
xfs: Align compat attrlist_by_handle with native implementation.
While inspecting the ioctl implementations, I noticed that the compat
implementation of XFS_IOC_ATTRLIST_BY_HANDLE does not do exactly the
same thing as the native implementation. Specifically, the "cursor"
does not appear to be written out to userspace on the compat path,
like it is on the native path.
This adjusts the compat implementation to copy out the cursor just
like the native implementation does. The attrlist cursor does not
require any special compat handling. This fixes xfstests xfs/269
on both IA-32 and x32 userspace, when running on an amd64 kernel.
Signed-off-by: Nick Bowler <nbowler@draconx.ca>
Fixes:
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Javier Barrio
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41c4f85cda |
quota: Lock s_umount in exclusive mode for Q_XQUOTA{ON,OFF} quotactls.
Commit
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Bob Peterson
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bc0205612b |
gfs2: take jdata unstuff into account in do_grow
Before this patch, function do_grow would not reserve enough journal blocks in the transaction to unstuff jdata files while growing them. This patch adds the logic to add one more block if the file to grow is jdata. Signed-off-by: Bob Peterson <rpeterso@redhat.com> Reviewed-by: Andreas Gruenbacher <agruenba@redhat.com> |
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Andrea Gelmini
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52042d8e82 |
btrfs: Fix typos in comments and strings
The typos accumulate over time so once in a while time they get fixed in a large patch. Signed-off-by: Andrea Gelmini <andrea.gelmini@gelma.net> Reviewed-by: David Sterba <dsterba@suse.com> Signed-off-by: David Sterba <dsterba@suse.com> |
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Johannes Thumshirn
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1690dd41e0 |
btrfs: improve error handling of btrfs_add_link
In the error handling block, err holds the return value of either
btrfs_del_root_ref() or btrfs_del_inode_ref() but it hasn't been checked
since it's introduction with commit
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Filipe Manana
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34a28e3d77 |
Btrfs: use generic_remap_file_range_prep() for cloning and deduplication
Since cloning and deduplication are no longer Btrfs specific operations, we now have generic code to handle parameter validation, compare file ranges used for deduplication, clear capabilities when cloning, etc. This change makes Btrfs use it, eliminating a lot of code in Btrfs and also fixing a few bugs, such as: 1) When cloning, the destination file's capabilities were not dropped (the fstest generic/513 tests this); 2) We were not checking if the destination file is immutable; 3) Not checking if either the source or destination files are swap files (swap file support is coming soon for Btrfs); 4) System limits were not checked (resource limits and O_LARGEFILE). Note that the generic helper generic_remap_file_range_prep() does start and waits for writeback by calling filemap_write_and_wait_range(), however that is not enough for Btrfs for two reasons: 1) With compression, we need to start writeback twice in order to get the pages marked for writeback and ordered extents created; 2) filemap_write_and_wait_range() (and all its other variants) only waits for the IO to complete, but we need to wait for the ordered extents to finish, so that when we do the actual reflinking operations the file extent items are in the fs tree. This is also important due to the fact that the generic helper, for the deduplication case, compares the contents of the pages in the requested range, which might require reading extents from disk in the very unlikely case that pages get invalidated after writeback finishes (so the file extent items must be up to date in the fs tree). Since these reasons are specific to Btrfs we have to do it in the Btrfs code before calling generic_remap_file_range_prep(). This also results in a simpler way of dealing with existing delalloc in the source/target ranges, specially for the deduplication case where we used to lock all the pages first and then if we found any dealloc for the range, or ordered extent, we would unlock the pages trigger writeback and wait for ordered extents to complete, then lock all the pages again and check if deduplication can be done. So now we get a simpler approach: lock the inodes, then trigger writeback and then wait for ordered extents to complete. So make btrfs use generic_remap_file_range_prep() (XFS and OCFS2 use it) to eliminate duplicated code, fix a few bugs and benefit from future bug fixes done there - for example the recent clone and dedupe bugs involving reflinking a partial EOF block got a counterpart fix in the generic helper, since it affected all filesystems supporting these operations, so we no longer need special checks in Btrfs for them. Reviewed-by: Nikolay Borisov <nborisov@suse.com> Signed-off-by: Filipe Manana <fdmanana@suse.com> Reviewed-by: David Sterba <dsterba@suse.com> Signed-off-by: David Sterba <dsterba@suse.com> |
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Nikolay Borisov
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61ed3a144a |
btrfs: Refactor main loop in extent_readpages
extent_readpages processes all pages in the readlist in batches of 16, this is implemented by a single for loop but thanks to an if condition the loop does 2 things based on whether we've filled the batch or not. Additionally due to the structure of the code there is an additional check which deals with partial batches. Streamline all of this by explicitly using two loops. The outter one is used to process all pages while the inner one just fills in the batch of 16 (currently). Due to this new structure the code guarantees that all pages are processed in the loop hence the code to deal with any leftovers is eliminated. This also enable the compiler to inline __extent_readpages: ./scripts/bloat-o-meter fs/btrfs/extent_io.o extent_io.for add/remove: 0/1 grow/shrink: 1/0 up/down: 660/-820 (-160) Function old new delta extent_readpages 476 1136 +660 __extent_readpages 820 - -820 Total: Before=44315, After=44155, chg -0.36% Signed-off-by: Nikolay Borisov <nborisov@suse.com> Reviewed-by: David Sterba <dsterba@suse.com> Signed-off-by: David Sterba <dsterba@suse.com> |
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Nikolay Borisov
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15c8276302 |
btrfs: Remove 1st shrink/grow phase from balance
The first step of the rebalance process ensures there is 1MiB free on each device. This number seems rather small. And in fact when talking to the original authors their opinions were: "man that's a little bonkers" "i don't think we even need that code anymore" "I think it was there to make sure we had room for the blank 1M at the beginning. I bet it goes all the way back to v0" "we just don't need any of that tho, i say we just delete it" Clearly, this piece of code has lost its original intent throughout the years. It doesn't really bring any real practical benefits to the relocation process. Additionally, this patch makes the balance process more lightweight by removing a pair of shrink/grow operations which are rather expensive for heavily populated filesystems. This is mainly due to shrink requiring relocating block groups, involving heavy use of the btree. The intermediate shrink/grow can fail and leave the filesystem in a middle state that would need to be changed back by the user. Suggested-by: Josef Bacik <josef@toxicpanda.com> Reviewed-by: Josef Bacik <josef@toxicpanda.com> Signed-off-by: Nikolay Borisov <nborisov@suse.com> [ update changelog ] Signed-off-by: David Sterba <dsterba@suse.com> |
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Filipe Manana
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be6821f82c |
Btrfs: send, fix race with transaction commits that create snapshots
If we create a snapshot of a snapshot currently being used by a send
operation, we can end up with send failing unexpectedly (returning
-ENOENT error to user space for example). The following diagram shows
how this happens.
CPU 1 CPU2 CPU3
btrfs_ioctl_send()
(...)
create_snapshot()
-> creates snapshot of a
root used by the send
task
btrfs_commit_transaction()
create_pending_snapshot()
__get_inode_info()
btrfs_search_slot()
btrfs_search_slot_get_root()
down_read commit_root_sem
get reference on eb of the
commit root
-> eb with bytenr == X
up_read commit_root_sem
btrfs_cow_block(root node)
btrfs_free_tree_block()
-> creates delayed ref to
free the extent
btrfs_run_delayed_refs()
-> runs the delayed ref,
adds extent to
fs_info->pinned_extents
btrfs_finish_extent_commit()
unpin_extent_range()
-> marks extent as free
in the free space cache
transaction commit finishes
btrfs_start_transaction()
(...)
btrfs_cow_block()
btrfs_alloc_tree_block()
btrfs_reserve_extent()
-> allocates extent at
bytenr == X
btrfs_init_new_buffer(bytenr X)
btrfs_find_create_tree_block()
alloc_extent_buffer(bytenr X)
find_extent_buffer(bytenr X)
-> returns existing eb,
which the send task got
(...)
-> modifies content of the
eb with bytenr == X
-> uses an eb that now
belongs to some other
tree and no more matches
the commit root of the
snapshot, resuts will be
unpredictable
The consequences of this race can be various, and can lead to searches in
the commit root performed by the send task failing unexpectedly (unable to
find inode items, returning -ENOENT to user space, for example) or not
failing because an inode item with the same number was added to the tree
that reused the metadata extent, in which case send can behave incorrectly
in the worst case or just fail later for some reason.
Fix this by performing a copy of the commit root's extent buffer when doing
a search in the context of a send operation.
CC: stable@vger.kernel.org # 4.4.x: 1fc28d8e2e9: Btrfs: move get root out of btrfs_search_slot to a helper
CC: stable@vger.kernel.org # 4.4.x: f9ddfd0592a: Btrfs: remove unused check of skip_locking
CC: stable@vger.kernel.org # 4.4.x
Signed-off-by: Filipe Manana <fdmanana@suse.com>
Signed-off-by: David Sterba <dsterba@suse.com>
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Filipe Manana
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827aa18e7b |
Btrfs: use nofs context when initializing security xattrs to avoid deadlock
When initializing the security xattrs, we are holding a transaction handle
therefore we need to use a GFP_NOFS context in order to avoid a deadlock
with reclaim in case it's triggered.
Fixes:
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Josef Bacik
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0568e82dbe |
btrfs: run delayed items before dropping the snapshot
With my delayed refs patches in place we started seeing a large amount of aborts in __btrfs_free_extent: BTRFS error (device sdb1): unable to find ref byte nr 91947008 parent 0 root 35964 owner 1 offset 0 Call Trace: ? btrfs_merge_delayed_refs+0xaf/0x340 __btrfs_run_delayed_refs+0x6ea/0xfc0 ? btrfs_set_path_blocking+0x31/0x60 btrfs_run_delayed_refs+0xeb/0x180 btrfs_commit_transaction+0x179/0x7f0 ? btrfs_check_space_for_delayed_refs+0x30/0x50 ? should_end_transaction.isra.19+0xe/0x40 btrfs_drop_snapshot+0x41c/0x7c0 btrfs_clean_one_deleted_snapshot+0xb5/0xd0 cleaner_kthread+0xf6/0x120 kthread+0xf8/0x130 ? btree_invalidatepage+0x90/0x90 ? kthread_bind+0x10/0x10 ret_from_fork+0x35/0x40 This was because btrfs_drop_snapshot depends on the root not being modified while it's dropping the snapshot. It will unlock the root node (and really every node) as it walks down the tree, only to re-lock it when it needs to do something. This is a problem because if we modify the tree we could cow a block in our path, which frees our reference to that block. Then once we get back to that shared block we'll free our reference to it again, and get ENOENT when trying to lookup our extent reference to that block in __btrfs_free_extent. This is ultimately happening because we have delayed items left to be processed for our deleted snapshot _after_ all of the inodes are closed for the snapshot. We only run the delayed inode item if we're deleting the inode, and even then we do not run the delayed insertions or delayed removals. These can be run at any point after our final inode does its last iput, which is what triggers the snapshot deletion. We can end up with the snapshot deletion happening and then have the delayed items run on that file system, resulting in the above problem. This problem has existed forever, however my patches made it much easier to hit as I wake up the cleaner much more often to deal with delayed iputs, which made us more likely to start the snapshot dropping work before the transaction commits, which is when the delayed items would generally be run. Before, generally speaking, we would run the delayed items, commit the transaction, and wakeup the cleaner thread to start deleting snapshots, which means we were less likely to hit this problem. You could still hit it if you had multiple snapshots to be deleted and ended up with lots of delayed items, but it was definitely harder. Fix for now by simply running all the delayed items before starting to drop the snapshot. We could make this smarter in the future by making the delayed items per-root, and then simply drop any delayed items for roots that we are going to delete. But for now just a quick and easy solution is the safest. CC: stable@vger.kernel.org # 4.4+ Reviewed-by: Filipe Manana <fdmanana@suse.com> Signed-off-by: Josef Bacik <josef@toxicpanda.com> Signed-off-by: David Sterba <dsterba@suse.com> |
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Josef Bacik
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83354f0772 |
btrfs: catch cow on deleting snapshots
When debugging some weird extent reference bug I suspected that we were changing a snapshot while we were deleting it, which could explain my bug. This was indeed what was happening, and this patch helped me verify my theory. It is never correct to modify the snapshot once it's being deleted, so mark the root when we are deleting it and make sure we complain about it when it happens. Reviewed-by: Filipe Manana <fdmanana@suse.com> Signed-off-by: Josef Bacik <josef@toxicpanda.com> Signed-off-by: David Sterba <dsterba@suse.com> |
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Qu Wenruo
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01e0da4885 |
btrfs: extent-tree: cleanup one-shot usage of @blocksize in do_walk_down
@blocksize variable in do_walk_down() is only used once, really no need to declare it. Reviewed-by: Nikolay Borisov <nborisov@suse.com> Reviewed-by: Johannes Thumshirn <jthumshirn@suse.de> Signed-off-by: Qu Wenruo <wqu@suse.com> Signed-off-by: David Sterba <dsterba@suse.com> |