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| author | Jan Kara <jack@suse.cz> | 2017-09-07 01:21:15 +0200 |
|---|---|---|
| committer | Linus Torvalds <torvalds@linux-foundation.org> | 2017-09-07 02:27:26 +0200 |
| commit | 26b433d0da062d6e19d75350c0171d3cf8ff560d (patch) | |
| tree | 5b48071836c93090cc5a5ff9d28120bf712ec11a /fs/cifs | |
| parent | mm, vmscan: do not loop on too_many_isolated for ever (diff) | |
| download | linux-26b433d0da062d6e19d75350c0171d3cf8ff560d.tar.xz linux-26b433d0da062d6e19d75350c0171d3cf8ff560d.zip | |
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')
| -rw-r--r-- | fs/cifs/cache.c | 31 |
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, }; |