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| author | Bob Peterson <rpeterso@redhat.com> | 2014-06-26 10:46:25 -0400 |
|---|---|---|
| committer | Steven Whitehouse <swhiteho@redhat.com> | 2014-07-18 11:13:56 +0100 |
| commit | 5bef3e7cf18c56cc733777c61b6b61a0b8a62b35 (patch) | |
| tree | a3b75df7abfcb6dcb77139cf23c540e51d761f7e /fs | |
| parent | 6ec43b1838bd71633ac3f853c63ddf1f5940b1ed (diff) | |
| download | linux-5bef3e7cf18c56cc733777c61b6b61a0b8a62b35.tar.gz linux-5bef3e7cf18c56cc733777c61b6b61a0b8a62b35.tar.bz2 linux-5bef3e7cf18c56cc733777c61b6b61a0b8a62b35.zip | |
GFS2: Allow flocks to use normal glock dq rather than dq_wait
This patch allows flock glocks to use a non-blocking dequeue rather
than dq_wait. It also reverts the previous patch I had posted regarding
dq_wait. The reverted patch isn't necessarily a bad idea, but I decided
this might avoid unforeseen side effects, and was therefore safer.
Signed-off-by: Bob Peterson <rpeterso@redhat.com>
Signed-off-by: Steven Whitehouse <swhiteho@redhat.com>
Diffstat (limited to 'fs')
| -rw-r--r-- | fs/gfs2/file.c | 2 | ||||
| -rw-r--r-- | fs/gfs2/glock.c | 4 |
2 files changed, 2 insertions, 4 deletions
diff --git a/fs/gfs2/file.c b/fs/gfs2/file.c index 4fc3a3046174..491e8e023598 100644 --- a/fs/gfs2/file.c +++ b/fs/gfs2/file.c @@ -991,7 +991,7 @@ static int do_flock(struct file *file, int cmd, struct file_lock *fl) goto out; flock_lock_file_wait(file, &(struct file_lock){.fl_type = F_UNLCK}); - gfs2_glock_dq_wait(fl_gh); + gfs2_glock_dq(fl_gh); gfs2_holder_reinit(state, flags, fl_gh); } else { error = gfs2_glock_get(GFS2_SB(&ip->i_inode), ip->i_no_addr, diff --git a/fs/gfs2/glock.c b/fs/gfs2/glock.c index b703dcc91588..ee4e04fe60fc 100644 --- a/fs/gfs2/glock.c +++ b/fs/gfs2/glock.c @@ -1128,9 +1128,7 @@ void gfs2_glock_dq_wait(struct gfs2_holder *gh) struct gfs2_glock *gl = gh->gh_gl; gfs2_glock_dq(gh); might_sleep(); - if (!find_first_holder(gl)) - wait_on_bit(&gl->gl_flags, GLF_DEMOTE, gfs2_glock_demote_wait, - TASK_UNINTERRUPTIBLE); + wait_on_bit(&gl->gl_flags, GLF_DEMOTE, gfs2_glock_demote_wait, TASK_UNINTERRUPTIBLE); } /** |