kernel.git/fs/f2fs/checkpoint.c, branch linux-3.18.y

f2fs: check the use of macros on block counts and addresses

2014-09-30T22:34:47Z

This patch cleans up the existing and new macros for readability. Rule is like this. ,-----------------------------------------> MAX_BLKADDR -, | ,------------- TOTAL_BLKS ----------------------------, | | | | ,- seg0_blkaddr ,----- sit/nat/ssa/main blkaddress | block | | (SEG0_BLKADDR) | | | | (e.g., MAIN_BLKADDR) | address 0..x................ a b c d ............................. | | global seg# 0...................... m ............................. | | | | `------- MAIN_SEGS -----------' `-------------- TOTAL_SEGS ---------------------------' | | seg# 0..........xx.................. = Note = o GET_SEGNO_FROM_SEG0 : blk address -> global segno o GET_SEGNO : blk address -> segno o START_BLOCK : segno -> starting block address Reviewed-by: Chao Yu Signed-off-by: Jaegeuk Kim

f2fs: introduce FITRIM in f2fs_ioctl

2014-09-30T22:06:09Z

This patch introduces FITRIM in f2fs_ioctl. In this case, f2fs will issue small discards and prefree discards as many as possible for the given area. Reviewed-by: Chao Yu Signed-off-by: Jaegeuk Kim

f2fs: introduce cp_control structure

2014-09-30T22:01:28Z

This patch add a new data structure to control checkpoint parameters. Currently, it presents the reason of checkpoint such as is_umount and normal sync. Reviewed-by: Chao Yu Signed-off-by: Jaegeuk Kim

f2fs: use MAX_BIO_BLOCKS(sbi)

2014-09-23T18:10:18Z

This patch cleans up a simple macro. Signed-off-by: Jaegeuk Kim

f2fs: use meta_inode cache to improve roll-forward speed

2014-09-23T18:10:12Z

Previously, all the dnode pages should be read during the roll-forward recovery. Even worsely, whole the chain was traversed twice. This patch removes that redundant and costly read operations by using page cache of meta_inode and readahead function as well. Reviewed-by: Chao Yu Signed-off-by: Jaegeuk Kim

f2fs: use nm_i->next_scan_nid as default for next_free_nid

2014-09-16T11:10:45Z

Now, if there is no free nid in nm_i->free_nid_list, 0 may be saved into next_free_nid of checkpoint, this may cause useless scanning for next mount. nm_i->next_scan_nid should be a better default value than 0. Signed-off-by: Huang, Ying Signed-off-by: Jaegeuk Kim

f2fs: expand counting dirty pages in the inode page cache

2014-09-16T11:10:39Z

Previously f2fs only counts dirty dentry pages, but there is no reason not to expand the scope. This patch changes the names on the management of dirty pages and to count dirty pages in each inode info as well. Signed-off-by: Jaegeuk Kim

f2fs: need fsck.f2fs when f2fs_bug_on is triggered

2014-09-09T20:15:02Z

If any f2fs_bug_on is triggered, fsck.f2fs is needed. Signed-off-by: Jaegeuk Kim

f2fs: retain inconsistency information to initiate fsck.f2fs

2014-09-09T20:14:25Z

This patch adds sbi->need_fsck to conduct fsck.f2fs later. This flag can only be removed by fsck.f2fs. Signed-off-by: Jaegeuk Kim

f2fs: introduce F2FS_I_SB, F2FS_M_SB, and F2FS_P_SB

2014-09-04T00:37:13Z

This patch adds three inline functions to clean up dirty casting codes. Signed-off-by: Jaegeuk Kim