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authorJaegeuk Kim <jaegeuk.kim@samsung.com>2013-12-11 08:54:01 +0400
committerJaegeuk Kim <jaegeuk.kim@samsung.com>2013-12-23 05:18:06 +0400
commit458e6197c37de53f7be0a837644daabb900c3036 (patch)
tree248c02467c0c1f8d84a8e6c23700620a939f3c58 /fs/f2fs/super.c
parent63a0b7cb33d85aeb0df39b984c08e234db4925d1 (diff)
downloadlinux-458e6197c37de53f7be0a837644daabb900c3036.tar.xz
f2fs: refactor bio->rw handling
This patch introduces f2fs_io_info to mitigate the complex parameter list. struct f2fs_io_info { enum page_type type; /* contains DATA/NODE/META/META_FLUSH */ int rw; /* contains R/RS/W/WS */ int rw_flag; /* contains REQ_META/REQ_PRIO */ } 1. f2fs_write_data_pages - DATA - WRITE_SYNC is set when wbc->WB_SYNC_ALL. 2. sync_node_pages - NODE - WRITE_SYNC all the time 3. sync_meta_pages - META - WRITE_SYNC all the time - REQ_META | REQ_PRIO all the time ** f2fs_submit_merged_bio() handles META_FLUSH. 4. ra_nat_pages, ra_sit_pages, ra_sum_pages - META - READ_SYNC Cc: Fan Li <fanofcode.li@samsung.com> Cc: Changman Lee <cm224.lee@samsung.com> Signed-off-by: Jaegeuk Kim <jaegeuk.kim@samsung.com>
Diffstat (limited to 'fs/f2fs/super.c')
-rw-r--r--fs/f2fs/super.c7
1 files changed, 6 insertions, 1 deletions
diff --git a/fs/f2fs/super.c b/fs/f2fs/super.c
index 68df44afd14b..1674f2f9970d 100644
--- a/fs/f2fs/super.c
+++ b/fs/f2fs/super.c
@@ -885,8 +885,13 @@ static int f2fs_fill_super(struct super_block *sb, void *data, int silent)
spin_lock_init(&sbi->stat_lock);
mutex_init(&sbi->read_io.io_mutex);
- for (i = 0; i < NR_PAGE_TYPE; i++)
+ sbi->read_io.sbi = sbi;
+ sbi->read_io.bio = NULL;
+ for (i = 0; i < NR_PAGE_TYPE; i++) {
mutex_init(&sbi->write_io[i].io_mutex);
+ sbi->write_io[i].sbi = sbi;
+ sbi->write_io[i].bio = NULL;
+ }
init_rwsem(&sbi->cp_rwsem);
init_waitqueue_head(&sbi->cp_wait);