xiaomi-sm8450/android_kernel_xiaomi_sm8450
1
0
Fork 0
Code Issues Pull Requests Actions Packages Projects Releases Wiki Activity

f2fs: compress: add compress_inode to cache compressed blocks

Browse Source 
Support to use address space of inner inode to cache compressed block,
in order to improve cache hit ratio of random read.

Signed-off-by: Chao Yu <yuchao0@huawei.com>
Signed-off-by: Jaegeuk Kim <jaegeuk@kernel.org>
This commit is contained in:
Chao Yu
2021-05-20 19:51:50 +08:00
committed by Jaegeuk Kim
parent d90505e519
commit ec3ea14d2f
12 changed files with 361 additions and 14 deletions
Download Patch File Download Diff File Expand all files Collapse all files

21
fs/f2fs/inode.c
View File

@@ -18,6 +18,10 @@
#include <trace/events/f2fs.h>
#ifdef CONFIG_F2FS_FS_COMPRESSION
extern const struct address_space_operations f2fs_compress_aops;
#endif
void f2fs_mark_inode_dirty_sync(struct inode *inode, bool sync)
{
if (is_inode_flag_set(inode, FI_NEW_INODE))
@@ -494,6 +498,11 @@ struct inode *f2fs_iget(struct super_block *sb, unsigned long ino)
if (ino == F2FS_NODE_INO(sbi) || ino == F2FS_META_INO(sbi))
goto make_now;
#ifdef CONFIG_F2FS_FS_COMPRESSION
if (ino == F2FS_COMPRESS_INO(sbi))
goto make_now;
#endif
ret = do_read_inode(inode);
if (ret)
goto bad_inode;
@@ -504,6 +513,12 @@ make_now:
} else if (ino == F2FS_META_INO(sbi)) {
inode->i_mapping->a_ops = &f2fs_meta_aops;
mapping_set_gfp_mask(inode->i_mapping, GFP_NOFS);
} else if (ino == F2FS_COMPRESS_INO(sbi)) {
#ifdef CONFIG_F2FS_FS_COMPRESSION
inode->i_mapping->a_ops = &f2fs_compress_aops;
#endif
mapping_set_gfp_mask(inode->i_mapping,
GFP_NOFS | __GFP_HIGHMEM | __GFP_MOVABLE);
} else if (S_ISREG(inode->i_mode)) {
inode->i_op = &f2fs_file_inode_operations;
inode->i_fop = &f2fs_file_operations;
@@ -723,8 +738,12 @@ void f2fs_evict_inode(struct inode *inode)
trace_f2fs_evict_inode(inode);
truncate_inode_pages_final(&inode->i_data);
if (test_opt(sbi, COMPRESS_CACHE) && f2fs_compressed_file(inode))
f2fs_invalidate_compress_pages(sbi, inode->i_ino);
if (inode->i_ino == F2FS_NODE_INO(sbi) ||
inode->i_ino == F2FS_META_INO(sbi))
inode->i_ino == F2FS_META_INO(sbi) ||
inode->i_ino == F2FS_COMPRESS_INO(sbi))
goto out_clear;
f2fs_bug_on(sbi, get_dirty_pages(inode));