f2fs: kill f2fs_drop_largest_extent

For direct IO, f2fs only allocate new address for the block which is not
exist in the disk before, its mapping info should not exist in extent
cache previously, so here we do not need to call f2fs_drop_largest_extent
to drop related cache.

Due to no more callers for f2fs_drop_largest_extent now, kill it.

Signed-off-by: Chao Yu <chao2.yu@samsung.com>
Signed-off-by: Jaegeuk Kim <jaegeuk@kernel.org>

diff --git a/fs/f2fs/data.c b/fs/f2fs/data.c
index 6c689e9a86a38c95abb7b71d3d3079d33a384145..90a2ffea875bfb703ac6c561a58e11658d0d0410 100644 (file)
--- a/fs/f2fs/data.c
+++ b/fs/f2fs/data.c
@@ -494,10 +494,6 @@ alloc:
        if (i_size_read(dn->inode) < ((loff_t)(fofs + 1) << PAGE_CACHE_SHIFT))
                i_size_write(dn->inode,
                                ((loff_t)(fofs + 1) << PAGE_CACHE_SHIFT));
-
-       /* direct IO doesn't use extent cache to maximize the performance */
-       f2fs_drop_largest_extent(dn->inode, fofs);
-
        return 0;
 }
 

diff --git a/fs/f2fs/extent_cache.c b/fs/f2fs/extent_cache.c
index de063f2b238473fd07906536df6c61c763fd20b6..e86e9f1e0733abd98dfdc0e9ce359cbeaf35a7c8 100644 (file)
--- a/fs/f2fs/extent_cache.c
+++ b/fs/f2fs/extent_cache.c
@@ -164,14 +164,6 @@ static void __drop_largest_extent(struct inode *inode,
                largest->len = 0;
 }
 
-void f2fs_drop_largest_extent(struct inode *inode, pgoff_t fofs)
-{
-       if (!f2fs_may_extent_tree(inode))
-               return;
-
-       __drop_largest_extent(inode, fofs, 1);
-}
-
 void f2fs_init_extent_tree(struct inode *inode, struct f2fs_extent *i_ext)
 {
        struct f2fs_sb_info *sbi = F2FS_I_SB(inode);

diff --git a/fs/f2fs/f2fs.h b/fs/f2fs/f2fs.h
index 904384427ca6f60edea10851c1c623daf669239f..0831db2f4b3ae8d0b634b0dfbe83ea0da840b622 100644 (file)
--- a/fs/f2fs/f2fs.h
+++ b/fs/f2fs/f2fs.h
@@ -2078,7 +2078,6 @@ void f2fs_leave_shrinker(struct f2fs_sb_info *);
  * extent_cache.c
  */
 unsigned int f2fs_shrink_extent_tree(struct f2fs_sb_info *, int);
-void f2fs_drop_largest_extent(struct inode *, pgoff_t);
 void f2fs_init_extent_tree(struct inode *, struct f2fs_extent *);
 unsigned int f2fs_destroy_extent_node(struct inode *);
 void f2fs_destroy_extent_tree(struct inode *);