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| author | Christoph Hellwig <hch@sgi.com> | 2005-11-02 15:09:35 +1100 |
|---|---|---|
| committer | Nathan Scott <nathans@sgi.com> | 2005-11-02 15:09:35 +1100 |
| commit | 7f14d0a013eeae8f8548e9ac10699465de2adacc (patch) | |
| tree | 5cd9b7b778f48c4d942b901ac6881cc4f6b43152 /fs | |
| parent | e718eeb4fe397f8add9f789e1fc3b47da4e7275f (diff) | |
| download | linux-stable-7f14d0a013eeae8f8548e9ac10699465de2adacc.tar.gz linux-stable-7f14d0a013eeae8f8548e9ac10699465de2adacc.tar.bz2 linux-stable-7f14d0a013eeae8f8548e9ac10699465de2adacc.zip | |
[XFS] Simplify pagebuf_rele Remove a conditional that can not be true
anymore and simplify the final put path a little
SGI-PV: 908809
SGI-Modid: xfs-linux:xfs-kern:200790a
Signed-off-by: Christoph Hellwig <hch@sgi.com>
Signed-off-by: Nathan Scott <nathans@sgi.com>
Diffstat (limited to 'fs')
| -rw-r--r-- | fs/xfs/linux-2.6/xfs_buf.c | 29 |
1 files changed, 4 insertions, 25 deletions
diff --git a/fs/xfs/linux-2.6/xfs_buf.c b/fs/xfs/linux-2.6/xfs_buf.c index e22cce1a9d5d..a764ded9f3a0 100644 --- a/fs/xfs/linux-2.6/xfs_buf.c +++ b/fs/xfs/linux-2.6/xfs_buf.c @@ -830,39 +830,18 @@ pagebuf_rele( PB_TRACE(pb, "rele", pb->pb_relse); - /* - * pagebuf_lookup buffers are not hashed, not delayed write, - * and don't have their own release routines. Special case. - */ - if (unlikely(!hash)) { - ASSERT(!pb->pb_relse); - if (atomic_dec_and_test(&pb->pb_hold)) - xfs_buf_free(pb); - return; - } - if (atomic_dec_and_lock(&pb->pb_hold, &hash->bh_lock)) { - int do_free = 1; - if (pb->pb_relse) { atomic_inc(&pb->pb_hold); spin_unlock(&hash->bh_lock); (*(pb->pb_relse)) (pb); - spin_lock(&hash->bh_lock); - do_free = 0; - } - - if (pb->pb_flags & PBF_FS_MANAGED) { - do_free = 0; - } - - if (do_free) { - ASSERT((pb->pb_flags & (PBF_DELWRI|_PBF_DELWRI_Q)) == 0); - list_del_init(&pb->pb_hash_list); + } else if (pb->pb_flags & PBF_FS_MANAGED) { spin_unlock(&hash->bh_lock); - pagebuf_free(pb); } else { + ASSERT(!(pb->pb_flags & (PBF_DELWRI|_PBF_DELWRI_Q))); + list_del_init(&pb->pb_hash_list); spin_unlock(&hash->bh_lock); + pagebuf_free(pb); } } else { /* |