diff options
| author | Joakim Tjernlund <Joakim.Tjernlund@transmode.se> | 2010-10-07 18:01:44 +0200 |
|---|---|---|
| committer | David Woodhouse <David.Woodhouse@intel.com> | 2010-10-25 01:06:22 +0100 |
| commit | 81cfc9f1f4ad8d335367bb393bd042cc45b00047 (patch) | |
| tree | 9ba0193e5ba52abe543b12cde711fc061043ad76 /fs/jffs2/gc.c | |
| parent | 733daa52b8d358e7c18be7fb9f82afc0619408f4 (diff) | |
jffs2: Fix serious write stall due to erase
Drop the alloc_sem before erasing flash in
jffs2_garbage_collect_pass().
Otherwise writes are put on hold until the erase
has finised.
Signed-off-by: Joakim Tjernlund <Joakim.Tjernlund@transmode.se>
Signed-off-by: Artem Bityutskiy <Artem.Bityutskiy@nokia.com>
Signed-off-by: David Woodhouse <David.Woodhouse@intel.com>
Diffstat (limited to 'fs/jffs2/gc.c')
| -rw-r--r-- | fs/jffs2/gc.c | 7 |
1 files changed, 4 insertions, 3 deletions
diff --git a/fs/jffs2/gc.c b/fs/jffs2/gc.c index 846a79452497..31dce611337c 100644 --- a/fs/jffs2/gc.c +++ b/fs/jffs2/gc.c @@ -219,13 +219,14 @@ int jffs2_garbage_collect_pass(struct jffs2_sb_info *c) if (!list_empty(&c->erase_complete_list) || !list_empty(&c->erase_pending_list)) { spin_unlock(&c->erase_completion_lock); + mutex_unlock(&c->alloc_sem); D1(printk(KERN_DEBUG "jffs2_garbage_collect_pass() erasing pending blocks\n")); - if (jffs2_erase_pending_blocks(c, 1)) { - mutex_unlock(&c->alloc_sem); + if (jffs2_erase_pending_blocks(c, 1)) return 0; - } + D1(printk(KERN_DEBUG "No progress from erasing blocks; doing GC anyway\n")); spin_lock(&c->erase_completion_lock); + mutex_lock(&c->alloc_sem); } /* First, work out which block we're garbage-collecting */ |