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GFS2: Fix mount hang caused by certain access pattern to sysfs files

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commit 1923703991 upstream.

Depending upon the order of userspace/kernel during the
mount process, this can result in a hang without the
_all version of the completion.

Signed-off-by: Steven Whitehouse <swhiteho@redhat.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
This commit is contained in:
Steven Whitehouse
2011-07-26 09:15:45 +01:00
committed by Greg Kroah-Hartman
parent 2cd0312de9
commit 52880922de
1 changed files with 2 additions and 2 deletions
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4
fs/gfs2/ops_fstype.c
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@@ -1018,13 +1018,13 @@ hostdata_error:
fsname++;
if (lm->lm_mount == NULL) {
fs_info(sdp, "Now mounting FS...\n");
complete(&sdp->sd_locking_init);
complete_all(&sdp->sd_locking_init);
return 0;
}
ret = lm->lm_mount(sdp, fsname);
if (ret == 0)
fs_info(sdp, "Joined cluster. Now mounting FS...\n");
complete(&sdp->sd_locking_init);
complete_all(&sdp->sd_locking_init);
return ret;
}