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authorJan Kara <jack@suse.cz>2017-09-07 02:21:15 +0300
committerLinus Torvalds <torvalds@linux-foundation.org>2017-09-07 03:27:26 +0300
commit26b433d0da062d6e19d75350c0171d3cf8ff560d (patch)
tree5b48071836c93090cc5a5ff9d28120bf712ec11a /fs/cifs/cache.c
parentdb73ee0d463799223244e96e7b7eea73b4a6ec31 (diff)
downloadlinux-26b433d0da062d6e19d75350c0171d3cf8ff560d.tar.xz
fscache: remove unused ->now_uncached callback
Patch series "Ranged pagevec lookup", v2. In this series I make pagevec_lookup() update the index (to be consistent with pagevec_lookup_tag() and also as a preparation for ranged lookups), provide ranged variant of pagevec_lookup() and use it in places where it makes sense. This not only removes some common code but is also a measurable performance win for some use cases (see patch 4/10) where radix tree is sparse and searching & grabing of a page after the end of the range has measurable overhead. This patch (of 10): The callback doesn't ever get called. Remove it. Link: http://lkml.kernel.org/r/20170726114704.7626-2-jack@suse.cz Signed-off-by: Jan Kara <jack@suse.cz> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Diffstat (limited to 'fs/cifs/cache.c')
-rw-r--r--fs/cifs/cache.c31
1 files changed, 0 insertions, 31 deletions
diff --git a/fs/cifs/cache.c b/fs/cifs/cache.c
index 6c665bf4a27c..2c14020e5e1d 100644
--- a/fs/cifs/cache.c
+++ b/fs/cifs/cache.c
@@ -292,36 +292,6 @@ fscache_checkaux cifs_fscache_inode_check_aux(void *cookie_netfs_data,
return FSCACHE_CHECKAUX_OKAY;
}
-static void cifs_fscache_inode_now_uncached(void *cookie_netfs_data)
-{
- struct cifsInodeInfo *cifsi = cookie_netfs_data;
- struct pagevec pvec;
- pgoff_t first;
- int loop, nr_pages;
-
- pagevec_init(&pvec, 0);
- first = 0;
-
- cifs_dbg(FYI, "%s: cifs inode 0x%p now uncached\n", __func__, cifsi);
-
- for (;;) {
- nr_pages = pagevec_lookup(&pvec,
- cifsi->vfs_inode.i_mapping, first,
- PAGEVEC_SIZE - pagevec_count(&pvec));
- if (!nr_pages)
- break;
-
- for (loop = 0; loop < nr_pages; loop++)
- ClearPageFsCache(pvec.pages[loop]);
-
- first = pvec.pages[nr_pages - 1]->index + 1;
-
- pvec.nr = nr_pages;
- pagevec_release(&pvec);
- cond_resched();
- }
-}
-
const struct fscache_cookie_def cifs_fscache_inode_object_def = {
.name = "CIFS.uniqueid",
.type = FSCACHE_COOKIE_TYPE_DATAFILE,
@@ -329,5 +299,4 @@ const struct fscache_cookie_def cifs_fscache_inode_object_def = {
.get_attr = cifs_fscache_inode_get_attr,
.get_aux = cifs_fscache_inode_get_aux,
.check_aux = cifs_fscache_inode_check_aux,
- .now_uncached = cifs_fscache_inode_now_uncached,
};