From: Tao Ma Date: Mon, 18 Aug 2008 09:38:47 +0000 (+0800) Subject: ocfs2: Add helper function in uptodate.c for removing xattr clusters X-Git-Tag: v2.6.28-rc1~572^2~46 X-Git-Url: http://www.pilppa.org/gitweb/gitweb.cgi?a=commitdiff_plain;h=ac11c827192272eabb68b8f4cf844066461d9690;p=linux-2.6-omap-h63xx.git ocfs2: Add helper function in uptodate.c for removing xattr clusters The old uptodate only handles the issue of removing one buffer_head from ocfs2 inode's buffer cache. With xattr clusters, we may need to remove multiple buffer_head's at a time. Signed-off-by: Tao Ma Signed-off-by: Mark Fasheh --- diff --git a/fs/ocfs2/uptodate.c b/fs/ocfs2/uptodate.c index 4da8851f2b2..e26459e7d55 100644 --- a/fs/ocfs2/uptodate.c +++ b/fs/ocfs2/uptodate.c @@ -511,14 +511,10 @@ static void ocfs2_remove_metadata_tree(struct ocfs2_caching_info *ci, ci->ci_num_cached--; } -/* Called when we remove a chunk of metadata from an inode. We don't - * bother reverting things to an inlined array in the case of a remove - * which moves us back under the limit. */ -void ocfs2_remove_from_cache(struct inode *inode, - struct buffer_head *bh) +static void ocfs2_remove_block_from_cache(struct inode *inode, + sector_t block) { int index; - sector_t block = bh->b_blocknr; struct ocfs2_meta_cache_item *item = NULL; struct ocfs2_inode_info *oi = OCFS2_I(inode); struct ocfs2_caching_info *ci = &oi->ip_metadata_cache; @@ -544,6 +540,30 @@ void ocfs2_remove_from_cache(struct inode *inode, kmem_cache_free(ocfs2_uptodate_cachep, item); } +/* + * Called when we remove a chunk of metadata from an inode. We don't + * bother reverting things to an inlined array in the case of a remove + * which moves us back under the limit. + */ +void ocfs2_remove_from_cache(struct inode *inode, + struct buffer_head *bh) +{ + sector_t block = bh->b_blocknr; + + ocfs2_remove_block_from_cache(inode, block); +} + +/* Called when we remove xattr clusters from an inode. */ +void ocfs2_remove_xattr_clusters_from_cache(struct inode *inode, + sector_t block, + u32 c_len) +{ + u64 i, b_len = ocfs2_clusters_to_blocks(inode->i_sb, 1) * c_len; + + for (i = 0; i < b_len; i++, block++) + ocfs2_remove_block_from_cache(inode, block); +} + int __init init_ocfs2_uptodate_cache(void) { ocfs2_uptodate_cachep = kmem_cache_create("ocfs2_uptodate", diff --git a/fs/ocfs2/uptodate.h b/fs/ocfs2/uptodate.h index 2e73206059a..531b4b3a0c4 100644 --- a/fs/ocfs2/uptodate.h +++ b/fs/ocfs2/uptodate.h @@ -40,6 +40,9 @@ void ocfs2_set_new_buffer_uptodate(struct inode *inode, struct buffer_head *bh); void ocfs2_remove_from_cache(struct inode *inode, struct buffer_head *bh); +void ocfs2_remove_xattr_clusters_from_cache(struct inode *inode, + sector_t block, + u32 c_len); int ocfs2_buffer_read_ahead(struct inode *inode, struct buffer_head *bh);