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authorJan Kara <jack@suse.cz>2009-12-15 16:46:49 -0800
committerLinus Torvalds <torvalds@linux-foundation.org>2009-12-16 07:20:06 -0800
commit48bde86df0acb9f53c4fd0908d023ecae962762f (patch)
tree267f26b2f4945f8c03c12ddcbb9cd26c6e3e0ad0 /fs/ext2/ext2.h
parent7bf0dc9b0ca9e9b6524b1f70e0898c7f11eb10be (diff)
ext2: report metadata errors during fsync
When an IO error happens while writing metadata buffers, we should better report it and call ext2_error since the filesystem is probably no longer consistent. Sometimes such IO errors happen while flushing thread does background writeback, the buffer gets later evicted from memory, and thus the only trace of the error remains as AS_EIO bit set in blockdevice's mapping. So we check this bit in ext2_fsync and report the error although we cannot be really sure which buffer we failed to write. Signed-off-by: Jan Kara <jack@suse.cz> Cc: Chris Mason <chris.mason@oracle.com> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Diffstat (limited to 'fs/ext2/ext2.h')
-rw-r--r--fs/ext2/ext2.h1
1 files changed, 1 insertions, 0 deletions
diff --git a/fs/ext2/ext2.h b/fs/ext2/ext2.h
index da318b0fa63..061914add3c 100644
--- a/fs/ext2/ext2.h
+++ b/fs/ext2/ext2.h
@@ -155,6 +155,7 @@ extern void ext2_write_super (struct super_block *);
extern const struct file_operations ext2_dir_operations;
/* file.c */
+extern int ext2_fsync(struct file *file, struct dentry *dentry, int datasync);
extern const struct inode_operations ext2_file_inode_operations;
extern const struct file_operations ext2_file_operations;
extern const struct file_operations ext2_xip_file_operations;