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| author | Younger Liu <younger.liu@huawei.com> | 2013-09-11 14:19:47 -0700 |
|---|---|---|
| committer | Linus Torvalds <torvalds@linux-foundation.org> | 2013-09-11 15:56:31 -0700 |
| commit | 7e9b79370733945b25c24e09d663b07c3936d10c (patch) | |
| tree | c9496c12fdaf0e7313c873397f17a9bc9bea4dbb /fs/ocfs2/localalloc.c | |
| parent | 98ac9125c5afed8c5d2e4c5824988f8ad51814e1 (diff) | |
| download | linux-7e9b79370733945b25c24e09d663b07c3936d10c.tar.gz linux-7e9b79370733945b25c24e09d663b07c3936d10c.tar.bz2 linux-7e9b79370733945b25c24e09d663b07c3936d10c.zip | |
ocfs2: ac_bits_wanted should be local_alloc_bits when returns -ENOSPC
There is an issue in reserving and claiming space for localalloc, When
localalloc space is not enough, it would claim space from global_bitmap.
And if there is not enough free space in global_bitmap, the size of
claiming space would set to half of orignal size and retry.
The issue is as follows: osb->local_alloc_bits is set to half of orignal
size in ocfs2_recalc_la_window(), but ac->ac_bits_wanted is set to
osb->local_alloc_default_bits which is not changed. localalloc always
reserves and claims local_alloc_default_bits space and returns ENOSPC.
So, ac->ac_bits_wanted should be osb->local_alloc_bits which would be
changed.
Signed-off-by: Younger Liu <younger.liu@huawei.com>
Cc: Joel Becker <jlbec@evilplan.org>
Cc: Mark Fasheh <mfasheh@suse.com>
Cc: Jeff Liu <jeff.liu@oracle.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Diffstat (limited to 'fs/ocfs2/localalloc.c')
| -rw-r--r-- | fs/ocfs2/localalloc.c | 4 |
1 files changed, 2 insertions, 2 deletions
diff --git a/fs/ocfs2/localalloc.c b/fs/ocfs2/localalloc.c index aebeacd807c3..cd5496b7a0a3 100644 --- a/fs/ocfs2/localalloc.c +++ b/fs/ocfs2/localalloc.c @@ -1082,7 +1082,7 @@ static int ocfs2_local_alloc_reserve_for_window(struct ocfs2_super *osb, } retry_enospc: - (*ac)->ac_bits_wanted = osb->local_alloc_default_bits; + (*ac)->ac_bits_wanted = osb->local_alloc_bits; status = ocfs2_reserve_cluster_bitmap_bits(osb, *ac); if (status == -ENOSPC) { if (ocfs2_recalc_la_window(osb, OCFS2_LA_EVENT_ENOSPC) == @@ -1154,7 +1154,7 @@ retry_enospc: OCFS2_LA_DISABLED) goto bail; - ac->ac_bits_wanted = osb->local_alloc_default_bits; + ac->ac_bits_wanted = osb->local_alloc_bits; status = ocfs2_claim_clusters(handle, ac, osb->local_alloc_bits, &cluster_off, |