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| author |   Steven Whitehouse <swhiteho@redhat.com> | 2013-10-04 11:31:05 +0100 |
|---|---|---|
| committer | Steven Whitehouse <swhiteho@redhat.com> | 2013-10-04 11:39:21 +0100 |
| commit | aabd7c72f52145fcf13f9251770b0b0246b5e406 (patch) | |
| tree | 99268cd27ed66cff7bb1dfcde031afa5b11e1995 /fs/gfs2 | |
| parent | GFS2: Make two similar quota code fragments into a function (diff) | |
| download | linux-dev-aabd7c72f52145fcf13f9251770b0b0246b5e406.tar.xz linux-dev-aabd7c72f52145fcf13f9251770b0b0246b5e406.zip | |
GFS2: Inline qd_trylock into gfs2_quota_unlock
The function qd_trylock was not a trylock despite its name and
can be inlined into gfs2_quota_unlock in order to make the
code a bit clearer. There should be no functional change as a
result of this patch.
Signed-off-by: Steven Whitehouse <swhiteho@redhat.com>
Cc: Abhijith Das <adas@redhat.com>
Diffstat (limited to 'fs/gfs2')
| -rw-r--r-- | fs/gfs2/quota.c | 45 |
1 files changed, 20 insertions, 25 deletions
diff --git a/fs/gfs2/quota.c b/fs/gfs2/quota.c index 75414e773ab4..cfb4cdeddacb 100644 --- a/fs/gfs2/quota.c +++ b/fs/gfs2/quota.c @@ -442,29 +442,6 @@ static int qd_fish(struct gfs2_sbd *sdp, struct gfs2_quota_data **qdp) return 0; } -static int qd_trylock(struct gfs2_quota_data *qd) -{ - struct gfs2_sbd *sdp = qd->qd_gl->gl_sbd; - int found; - - spin_lock(&qd_lru_lock); - found = qd_check_sync(sdp, qd, NULL); - spin_unlock(&qd_lru_lock); - - if (!found) - return 0; - - gfs2_assert_warn(sdp, qd->qd_change_sync); - if (bh_get(qd)) { - clear_bit(QDF_LOCKED, &qd->qd_flags); - slot_put(qd); - qd_put(qd); - return 0; - } - - return 1; -} - static void qd_unlock(struct gfs2_quota_data *qd) { gfs2_assert_warn(qd->qd_gl->gl_sbd, @@ -1015,9 +992,11 @@ static int need_sync(struct gfs2_quota_data *qd) void gfs2_quota_unlock(struct gfs2_inode *ip) { + struct gfs2_sbd *sdp = GFS2_SB(&ip->i_inode); struct gfs2_quota_data *qda[4]; unsigned int count = 0; unsigned int x; + int found; if (!test_and_clear_bit(GIF_QD_LOCKED, &ip->i_flags)) goto out; @@ -1030,9 +1009,25 @@ void gfs2_quota_unlock(struct gfs2_inode *ip) sync = need_sync(qd); gfs2_glock_dq_uninit(&ip->i_res->rs_qa_qd_ghs[x]); + if (!sync) + continue; + + spin_lock(&qd_lru_lock); + found = qd_check_sync(sdp, qd, NULL); + spin_unlock(&qd_lru_lock); + + if (!found) + continue; + + gfs2_assert_warn(sdp, qd->qd_change_sync); + if (bh_get(qd)) { + clear_bit(QDF_LOCKED, &qd->qd_flags); + slot_put(qd); + qd_put(qd); + continue; + } - if (sync && qd_trylock(qd)) - qda[count++] = qd; + qda[count++] = qd; } if (count) { |