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Two CephFS fixes (copy_file_range and quota) and a small feature bit 

cleanup.
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Merge tag 'ceph-for-4.20-rc2' of https://github.com/ceph/ceph-client

Pull Ceph fixes from Ilya Dryomov:
 "Two CephFS fixes (copy_file_range and quota) and a small feature bit
  cleanup"

* tag 'ceph-for-4.20-rc2' of https://github.com/ceph/ceph-client:
  libceph: assume argonaut on the server side
  ceph: quota: fix null pointer dereference in quota check
  ceph: add destination file data sync before doing any remote copy
This commit is contained in:
Linus Torvalds 2018-11-09 16:26:18 -06:00
parent 26eaed4671 23c625ce30
commit d757a3b01e
4 changed files with 15 additions and 19 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

11
fs/ceph/file.c
View File

@ -1931,10 +1931,17 @@ static ssize_t ceph_copy_file_range(struct file *src_file, loff_t src_off,
if (!prealloc_cf)
return -ENOMEM;
/* Start by sync'ing the source file */
/* Start by sync'ing the source and destination files */
ret = file_write_and_wait_range(src_file, src_off, (src_off + len));
if (ret < 0)
if (ret < 0) {
dout("failed to write src file (%zd)\n", ret);
goto out;
}
ret = file_write_and_wait_range(dst_file, dst_off, (dst_off + len));
if (ret < 0) {
dout("failed to write dst file (%zd)\n", ret);
goto out;
}
/*
* We need FILE_WR caps for dst_ci and FILE_RD for src_ci as other

12
fs/ceph/mds_client.c
View File

@ -80,12 +80,8 @@ static int parse_reply_info_in(void **p, void *end,
info->symlink = *p;
*p += info->symlink_len;
if (features & CEPH_FEATURE_DIRLAYOUTHASH)
ceph_decode_copy_safe(p, end, &info->dir_layout,
sizeof(info->dir_layout), bad);
else
memset(&info->dir_layout, 0, sizeof(info->dir_layout));
ceph_decode_copy_safe(p, end, &info->dir_layout,
sizeof(info->dir_layout), bad);
ceph_decode_32_safe(p, end, info->xattr_len, bad);
ceph_decode_need(p, end, info->xattr_len, bad);
info->xattr_data = *p;
@ -3182,10 +3178,8 @@ static void send_mds_reconnect(struct ceph_mds_client *mdsc,
recon_state.pagelist = pagelist;
if (session->s_con.peer_features & CEPH_FEATURE_MDSENC)
recon_state.msg_version = 3;
else if (session->s_con.peer_features & CEPH_FEATURE_FLOCK)
recon_state.msg_version = 2;
else
recon_state.msg_version = 1;
recon_state.msg_version = 2;
err = iterate_session_caps(session, encode_caps_cb, &recon_state);
if (err < 0)
goto fail;

3
fs/ceph/quota.c
View File

@ -237,7 +237,8 @@ static bool check_quota_exceeded(struct inode *inode, enum quota_check_op op,
ceph_put_snap_realm(mdsc, realm);
realm = next;
}
ceph_put_snap_realm(mdsc, realm);
if (realm)
ceph_put_snap_realm(mdsc, realm);
up_read(&mdsc->snap_rwsem);
return exceeded;

8
include/linux/ceph/ceph_features.h
View File

@ -213,12 +213,6 @@ DEFINE_CEPH_FEATURE_DEPRECATED(63, 1, RESERVED_BROKEN, LUMINOUS) // client-facin
CEPH_FEATURE_NEW_OSDOPREPLY_ENCODING | \
CEPH_FEATURE_CEPHX_V2)
#define CEPH_FEATURES_REQUIRED_DEFAULT \
(CEPH_FEATURE_NOSRCADDR | \
CEPH_FEATURE_SUBSCRIBE2 | \
CEPH_FEATURE_RECONNECT_SEQ | \
CEPH_FEATURE_PGID64 | \
CEPH_FEATURE_PGPOOL3 | \
CEPH_FEATURE_OSDENC)
#define CEPH_FEATURES_REQUIRED_DEFAULT 0
#endif