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ceph: convert inline data to normal data before data write

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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>
This commit is contained in:
Yan, Zheng
2014-11-14 22:38:29 +08:00
committed by Ilya Dryomov
parent 83701246ae
commit 28127bdd2f
3 changed files with 161 additions and 3 deletions
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2
fs/ceph/super.h
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@@ -888,7 +888,7 @@ extern int ceph_atomic_open(struct inode *dir, struct dentry *dentry,
extern int ceph_release(struct inode *inode, struct file *filp);
extern void ceph_fill_inline_data(struct inode *inode, struct page *locked_page,
char *data, size_t len);
int ceph_uninline_data(struct file *filp, struct page *locked_page);
/* dir.c */
extern const struct file_operations ceph_dir_fops;
extern const struct inode_operations ceph_dir_iops;