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 2026-10-29 19:21:31 -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/super.c
View file

@ -420,10 +420,8 @@ restart:
spin_unlock(&sb_lock);
down_read(&sb->s_umount);
lock_super(sb);
if (sb->s_root && sb->s_dirt)
sb->s_op->write_super(sb);
unlock_super(sb);
up_read(&sb->s_umount);
spin_lock(&sb_lock);