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for-4.18-rc1-tag 

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Merge tag 'for-4.18-rc1-tag' of git://git.kernel.org/pub/scm/linux/kernel/git/kdave/linux

Pull btrfs fixes from David Sterba:
 "Two regression fixes and an incorrect error value propagation fix from
  'rename exchange'"

* tag 'for-4.18-rc1-tag' of git://git.kernel.org/pub/scm/linux/kernel/git/kdave/linux:
  Btrfs: fix return value on rename exchange failure
  btrfs: fix invalid-free in btrfs_extent_same
  Btrfs: fix physical offset reported by fiemap for inline extents
This commit is contained in:
Linus Torvalds 2018-06-26 08:41:54 -07:00
parent 6f0d349d92 c5b4a50b74
commit 84bfed40fc
3 changed files with 12 additions and 7 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

5
fs/btrfs/extent_io.c
View File

@ -4542,8 +4542,11 @@ int extent_fiemap(struct inode *inode, struct fiemap_extent_info *fieinfo,
offset_in_extent = em_start - em->start;
em_end = extent_map_end(em);
em_len = em_end - em_start;
disko = em->block_start + offset_in_extent;
flags = 0;
if (em->block_start < EXTENT_MAP_LAST_BYTE)
disko = em->block_start + offset_in_extent;
else
disko = 0;
/*
* bump off for our next call to get_extent

4
fs/btrfs/inode.c
View File

@ -9443,6 +9443,7 @@ static int btrfs_rename_exchange(struct inode *old_dir,
u64 new_idx = 0;
u64 root_objectid;
int ret;
int ret2;
bool root_log_pinned = false;
bool dest_log_pinned = false;
@ -9639,7 +9640,8 @@ static int btrfs_rename_exchange(struct inode *old_dir,
dest_log_pinned = false;
}
}
ret = btrfs_end_transaction(trans);
ret2 = btrfs_end_transaction(trans);
ret = ret ? ret : ret2;
out_notrans:
if (new_ino == BTRFS_FIRST_FREE_OBJECTID)
up_read(&fs_info->subvol_sem);

10
fs/btrfs/ioctl.c
View File

@ -3577,7 +3577,7 @@ static int btrfs_extent_same(struct inode *src, u64 loff, u64 olen,
ret = btrfs_extent_same_range(src, loff, BTRFS_MAX_DEDUPE_LEN,
dst, dst_loff, &cmp);
if (ret)
goto out_unlock;
goto out_free;
loff += BTRFS_MAX_DEDUPE_LEN;
dst_loff += BTRFS_MAX_DEDUPE_LEN;
@ -3587,16 +3587,16 @@ static int btrfs_extent_same(struct inode *src, u64 loff, u64 olen,
ret = btrfs_extent_same_range(src, loff, tail_len, dst,
dst_loff, &cmp);
out_free:
kvfree(cmp.src_pages);
kvfree(cmp.dst_pages);
out_unlock:
if (same_inode)
inode_unlock(src);
else
btrfs_double_inode_unlock(src, dst);
out_free:
kvfree(cmp.src_pages);
kvfree(cmp.dst_pages);
return ret;
}