Signed-off-by: Nick Piggin --- fs/dcache.c | 16 ++++++++-------- 1 file changed, 8 insertions(+), 8 deletions(-) Index: linux-2.6/fs/dcache.c =================================================================== --- linux-2.6.orig/fs/dcache.c 2010-11-17 00:52:38.000000000 +1100 +++ linux-2.6/fs/dcache.c 2010-11-17 01:05:37.000000000 +1100 @@ -586,7 +586,7 @@ static void shrink_dentry_list(struct li dentry = list_entry(list->prev, struct dentry, d_lru); if (!spin_trylock(&dentry->d_lock)) { -relock: +relock1: spin_unlock(&dcache_lru_lock); cpu_relax(); spin_lock(&dcache_lru_lock); @@ -603,20 +603,24 @@ static void shrink_dentry_list(struct li spin_unlock(&dentry->d_lock); continue; } + if (!spin_trylock(&dcache_inode_lock)) { +relock2: + spin_unlock(&dentry->d_lock); + goto relock1; + } if (IS_ROOT(dentry)) parent = NULL; else parent = dentry->d_parent; if (parent && !spin_trylock(&parent->d_lock)) { - spin_unlock(&dentry->d_lock); - goto relock; + spin_unlock(&dcache_inode_lock); + goto relock2; } __dentry_lru_del(dentry); spin_unlock(&dcache_lru_lock); prune_one_dentry(dentry, parent); /* dcache_inode_lock and dentry->d_lock dropped */ - spin_lock(&dcache_inode_lock); spin_lock(&dcache_lru_lock); } } @@ -637,7 +641,6 @@ static void __shrink_dcache_sb(struct su LIST_HEAD(tmp); int cnt = *count; - spin_lock(&dcache_inode_lock); relock: spin_lock(&dcache_lru_lock); while (!list_empty(&sb->s_dentry_lru)) { @@ -675,7 +678,6 @@ static void __shrink_dcache_sb(struct su if (!list_empty(&referenced)) list_splice(&referenced, &sb->s_dentry_lru); spin_unlock(&dcache_lru_lock); - spin_unlock(&dcache_inode_lock); } /** @@ -764,14 +766,12 @@ void shrink_dcache_sb(struct super_block { LIST_HEAD(tmp); - spin_lock(&dcache_inode_lock); spin_lock(&dcache_lru_lock); while (!list_empty(&sb->s_dentry_lru)) { list_splice_init(&sb->s_dentry_lru, &tmp); shrink_dentry_list(&tmp); } spin_unlock(&dcache_lru_lock); - spin_unlock(&dcache_inode_lock); } EXPORT_SYMBOL(shrink_dcache_sb); -- To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to majordomo@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/