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| author | Yan, Zheng | 2014-11-14 15:38:29 +0100 |
|---|---|---|
| committer | Ilya Dryomov | 2014-12-17 18:09:52 +0100 |
| commit | 28127bdd2f843e996f24b51a70a0592c7ec5c763 (patch) | |
| tree | f6053dbabcc606d7a5270f6069bc70e305cafe9d /fs/ceph/file.c | |
| parent | ceph: sync read inline data (diff) | |
| download | kernel-qcow2-linux-28127bdd2f843e996f24b51a70a0592c7ec5c763.tar.gz kernel-qcow2-linux-28127bdd2f843e996f24b51a70a0592c7ec5c763.tar.xz kernel-qcow2-linux-28127bdd2f843e996f24b51a70a0592c7ec5c763.zip | |
ceph: convert inline data to normal data before data write
Before any data write, convert inline data to normal data and set
i_inline_version to CEPH_INLINE_NONE. The OSD request that saves
inline data to object contains 3 operations (CMPXATTR, WRITE and
SETXATTR). It compares a xattr named 'inline_version' to prevent
old data overwrites newer data.
Signed-off-by: Yan, Zheng <zyan@redhat.com>
Diffstat (limited to 'fs/ceph/file.c')
| -rw-r--r-- | fs/ceph/file.c | 14 |
1 files changed, 14 insertions, 0 deletions
diff --git a/fs/ceph/file.c b/fs/ceph/file.c index 5b092bda9284..9b5901fefbf8 100644 --- a/fs/ceph/file.c +++ b/fs/ceph/file.c @@ -963,6 +963,12 @@ static ssize_t ceph_write_iter(struct kiocb *iocb, struct iov_iter *from) if (err) goto out; + if (ci->i_inline_version != CEPH_INLINE_NONE) { + err = ceph_uninline_data(file, NULL); + if (err < 0) + goto out; + } + retry_snap: if (ceph_osdmap_flag(osdc->osdmap, CEPH_OSDMAP_FULL)) { err = -ENOSPC; @@ -1024,6 +1030,7 @@ retry_snap: if (written >= 0) { int dirty; spin_lock(&ci->i_ceph_lock); + ci->i_inline_version = CEPH_INLINE_NONE; dirty = __ceph_mark_dirty_caps(ci, CEPH_CAP_FILE_WR); spin_unlock(&ci->i_ceph_lock); if (dirty) @@ -1269,6 +1276,12 @@ static long ceph_fallocate(struct file *file, int mode, goto unlock; } + if (ci->i_inline_version != CEPH_INLINE_NONE) { + ret = ceph_uninline_data(file, NULL); + if (ret < 0) + goto unlock; + } + size = i_size_read(inode); if (!(mode & FALLOC_FL_KEEP_SIZE)) endoff = offset + length; @@ -1295,6 +1308,7 @@ static long ceph_fallocate(struct file *file, int mode, if (!ret) { spin_lock(&ci->i_ceph_lock); + ci->i_inline_version = CEPH_INLINE_NONE; dirty = __ceph_mark_dirty_caps(ci, CEPH_CAP_FILE_WR); spin_unlock(&ci->i_ceph_lock); if (dirty) |