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| author | Linus Torvalds <torvalds@linux-foundation.org> | 2014-02-09 18:12:07 -0800 |
|---|---|---|
| committer | Linus Torvalds <torvalds@linux-foundation.org> | 2014-02-09 18:12:07 -0800 |
| commit | f94aa7c7f1fc474be776e4bf88088d5a007d3575 (patch) | |
| tree | ba607798fb9e9136d267353b9b5c1b4dd50f4819 /include | |
| parent | 9c1db7798141e2658e4b5bb170128dfdc3270ff4 (diff) | |
| parent | c9efe51165fa0aff57be54e3cb0201ac87f68980 (diff) | |
| download | lwn-f94aa7c7f1fc474be776e4bf88088d5a007d3575.tar.gz lwn-f94aa7c7f1fc474be776e4bf88088d5a007d3575.zip | |
Merge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/viro/vfs
Pull vfs fixes from Al Viro:
"A couple of fixes, both -stable fodder. The O_SYNC bug is fairly
old..."
* 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/viro/vfs:
fix a kmap leak in virtio_console
fix O_SYNC|O_APPEND syncing the wrong range on write()
Diffstat (limited to 'include')
| -rw-r--r-- | include/linux/fs.h | 8 |
1 files changed, 7 insertions, 1 deletions
diff --git a/include/linux/fs.h b/include/linux/fs.h index d79678c188ad..60829565e552 100644 --- a/include/linux/fs.h +++ b/include/linux/fs.h @@ -2274,7 +2274,13 @@ extern int filemap_fdatawrite_range(struct address_space *mapping, extern int vfs_fsync_range(struct file *file, loff_t start, loff_t end, int datasync); extern int vfs_fsync(struct file *file, int datasync); -extern int generic_write_sync(struct file *file, loff_t pos, loff_t count); +static inline int generic_write_sync(struct file *file, loff_t pos, loff_t count) +{ + if (!(file->f_flags & O_DSYNC) && !IS_SYNC(file->f_mapping->host)) + return 0; + return vfs_fsync_range(file, pos, pos + count - 1, + (file->f_flags & __O_SYNC) ? 0 : 1); +} extern void emergency_sync(void); extern void emergency_remount(void); #ifdef CONFIG_BLOCK |