A-Team_Digital_Solutions/android_kernel_motorola_sm6375
Watch
2
0
Fork
You've already forked android_kernel_motorola_sm6375
 0
mirror of https://github.com/BobTheBlinker/android_kernel_motorola_sm6375.git synced 2026-10-30 03:27:44 -04:00
Code Issues Projects Releases Packages Wiki Activity

->write_super lock_super pushdown

Browse source 
Push down lock_super into ->write_super instances and remove it from the
caller.

Following filesystem don't need ->s_lock in ->write_super and are skipped:

 * bfs, nilfs2 - no other uses of s_lock and have internal locks in
	->write_super
 * ext2 - uses BKL in ext2_write_super and has internal calls without s_lock
 * reiserfs - no other uses of s_lock as has reiserfs_write_lock (BKL) in
 	->write_super
 * xfs - no other uses of s_lock and uses internal lock (buffer lock on
	superblock buffer) to serialize ->write_super.  Also xfs_fs_write_super
	is superflous and will go away in the next merge window

Signed-off-by: Christoph Hellwig <[email protected]>
Signed-off-by: Al Viro <[email protected]>
This commit is contained in:
Christoph Hellwig 2009-05-11 23:35:03 +02:00 • committed by Al Viro
commit ebc1ac1645
11 changed files with 32 additions and 17 deletions
Download patch file Download diff file Expand all files Collapse all files

2
fs/affs/super.c
View file

@ -54,6 +54,7 @@ affs_write_super(struct super_block *sb)
int clean = 2;
struct affs_sb_info *sbi = AFFS_SB(sb);
lock_super(sb);
if (!(sb->s_flags & MS_RDONLY)) {
// if (sbi->s_bitmap[i].bm_bh) {
// if (buffer_dirty(sbi->s_bitmap[i].bm_bh)) {
@ -66,6 +67,7 @@ affs_write_super(struct super_block *sb)
sb->s_dirt = !clean; /* redo until bitmap synced */
} else
sb->s_dirt = 0;
unlock_super(sb);
pr_debug("AFFS: write_super() at %lu, clean=%d\n", get_seconds(), clean);
}