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authorAjeet Yadav <ajeet.yadav.77@gmail.com>2011-12-27 13:40:04 +0400
committerPhillip Lougher <phillip@squashfs.org.uk>2011-12-30 05:24:13 +0400
commitd7fbd893388d9e86d29b7cfbd5457bcf03496fbf (patch)
treeea94d043ee3e842f7273391b143a5949afb39975 /fs/squashfs/squashfs_fs_sb.h
parent89cab5b5727d3139adc247e3a3d4ee5b10e3eda5 (diff)
downloadlinux-d7fbd893388d9e86d29b7cfbd5457bcf03496fbf.tar.xz
Squashfs: optimise squashfs_cache_get entry search
squashfs_cache_get() iterates over all entries to search for block its looking for. Often get() / put() are called for same block. If we cache the current entry index, then we can optimise the subsequent *_get() calls. Signed-off-by: Ajeet Yadav <ajeet.yadav.77@gmail.com> Signed-off-by: Phillip Lougher <phillip@squashfs.org.uk>
Diffstat (limited to 'fs/squashfs/squashfs_fs_sb.h')
-rw-r--r--fs/squashfs/squashfs_fs_sb.h1
1 files changed, 1 insertions, 0 deletions
diff --git a/fs/squashfs/squashfs_fs_sb.h b/fs/squashfs/squashfs_fs_sb.h
index 651f0b31d296..52934a22f296 100644
--- a/fs/squashfs/squashfs_fs_sb.h
+++ b/fs/squashfs/squashfs_fs_sb.h
@@ -28,6 +28,7 @@
struct squashfs_cache {
char *name;
int entries;
+ int curr_blk;
int next_blk;
int num_waiters;
int unused;