lk/linux-kernel-test
1
0
Fork 0
Code Issues Pull Requests Releases Wiki Activity

GFS2: Fix bug trap and journaled data fsync

Browse Source 
Journaled data requires that a complete flush of all dirty data for
the file is done, in order that the ail flush which comes after
will succeed.

Also the recently enhanced bug trap can trigger falsely in case
an ail flush from fsync races with a page read. This updates the
bug trap such that it will ignore buffers which are locked and
only trigger on dirty and/or pinned buffers when the ail flush
is run from fsync. The original bug trap is retained when ail
flush is run from ->go_sync()

Signed-off-by: Steven Whitehouse <swhiteho@redhat.com>
This commit is contained in:
Steven Whitehouse
2011-08-05 10:12:47 +01:00
parent 40ac218f52
commit f18185291d
2 changed files with 6 additions and 4 deletions
Download Patch File Download Diff File Expand all files Collapse all files

2
fs/gfs2/file.c
View File

@ -590,6 +590,8 @@ static int gfs2_fsync(struct file *file, loff_t start, loff_t end,
mutex_unlock(&inode->i_mutex);
return ret;
}
if (gfs2_is_jdata(ip))
filemap_write_and_wait(mapping);
gfs2_ail_flush(ip->i_gl);
mutex_unlock(&inode->i_mutex);
}