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linux-sg2042
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[GFS2] Drop log lock on I/O error & tidy up 

This patch drops the log spinlock when an I/O error occurs
to avoid any possible problems in case of blocking or
recursion in the I/O error routine. It also has a few
cosmetic changes to tidy up various other files.

Signed-off-by: Steven Whitehouse <swhiteho@redhat.com>
This commit is contained in:
Steven Whitehouse 2006-05-18 14:10:52 -04:00
parent 02f211f4d0
commit 1b50259bc3
4 changed files with 17 additions and 16 deletions
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5
fs/gfs2/meta_io.c
View File

@ -226,8 +226,11 @@ void gfs2_ail1_start_one(struct gfs2_sbd *sdp, struct gfs2_ail *ai)
gfs2_assert(sdp, bd->bd_ail == ai);
if (!buffer_busy(bh)) {
if (!buffer_uptodate(bh))
if (!buffer_uptodate(bh)) {
gfs2_log_unlock(sdp);
gfs2_io_error_bh(sdp, bh);
gfs2_log_lock(sdp);
}
list_move(&bd->bd_ail_st_list,
&ai->ai_ail2_list);
continue;

5
fs/gfs2/ops_inode.c
View File

@ -213,8 +213,7 @@ static int gfs2_link(struct dentry *old_dentry, struct inode *dir,
if (error)
goto out_gunlock_q;
error = gfs2_trans_begin(sdp,
sdp->sd_max_dirres +
error = gfs2_trans_begin(sdp, sdp->sd_max_dirres +
al->al_rgd->rd_ri.ri_length +
2 * RES_DINODE + RES_STATFS +
RES_QUOTA, 0);
@ -303,7 +302,7 @@ static int gfs2_unlink(struct inode *dir, struct dentry *dentry)
if (error)
goto out_gunlock;
error = gfs2_unlinki(dip, &dentry->d_name, ip,ul);
error = gfs2_unlinki(dip, &dentry->d_name, ip, ul);
gfs2_trans_end(sdp);

6
fs/gfs2/page.c
View File

@ -155,11 +155,9 @@ int gfs2_unstuffer_page(struct gfs2_inode *ip, struct buffer_head *dibh,
if (!PageUptodate(page)) {
void *kaddr = kmap(page);
memcpy(kaddr,
dibh->b_data + sizeof(struct gfs2_dinode),
memcpy(kaddr, dibh->b_data + sizeof(struct gfs2_dinode),
ip->i_di.di_size);
memset(kaddr + ip->i_di.di_size,
0,
memset(kaddr + ip->i_di.di_size, 0,
PAGE_CACHE_SIZE - ip->i_di.di_size);
kunmap(page);

17
fs/gfs2/unlinked.c
View File

@ -130,11 +130,12 @@ static void enforce_limit(struct gfs2_sbd *sdp)
unsigned int tries = 0, min = 0;
int error;
if (atomic_read(&sdp->sd_unlinked_count) >=
gfs2_tune_get(sdp, gt_ilimit)) {
tries = gfs2_tune_get(sdp, gt_ilimit_tries);
min = gfs2_tune_get(sdp, gt_ilimit_min);
}
if (atomic_read(&sdp->sd_unlinked_count) <
gfs2_tune_get(sdp, gt_ilimit))
return;
tries = gfs2_tune_get(sdp, gt_ilimit_tries);
min = gfs2_tune_get(sdp, gt_ilimit_min);
while (tries--) {
struct gfs2_unlinked *ul = ul_fish(sdp);
@ -187,7 +188,7 @@ int gfs2_unlinked_get(struct gfs2_sbd *sdp, struct gfs2_unlinked **ul)
goto fail;
found:
found:
for (b = 0; b < 8; b++)
if (!(byte & (1 << b)))
break;
@ -202,7 +203,7 @@ int gfs2_unlinked_get(struct gfs2_sbd *sdp, struct gfs2_unlinked **ul)
return 0;
fail:
fail:
spin_unlock(&sdp->sd_unlinked_spin);
kfree(*ul);
return -ENOSPC;
@ -410,7 +411,7 @@ int gfs2_unlinked_init(struct gfs2_sbd *sdp)
return 0;
fail:
fail:
gfs2_unlinked_cleanup(sdp);
return error;
}