Re: [f2fs-dev] [PATCH V2] f2fs: check all ones or zeros bitmap with bitops for better mount performance

2013-10-27 Thread 이창만
To check whether bitmap are all zeros or all ones, I think memcmp is more neat. But I don't know exactly performance gap between memcmp and find_next_bit. -Original Message- From: Chao Yu [] Sent: Thursday, October 24, 2013 5:21 PM To:

[f2fs-dev] [PATCH] f2fs: remove unnecessary segment bitmap updates

2013-10-27 Thread Jaegeuk Kim
From: Changman Lee From: Changman Lee Only one dirty type is set in __locate_dirty_segment and we can know dirty type of segment. So we don't need to check other dirty types. Signed-off-by: Changman Lee Signed-off-by: Jaegeuk Kim

[f2fs-dev] [PATCH 2/2] f2fs: fix a deadlock during init_acl procedure

2013-10-27 Thread Jaegeuk Kim
The deadlock is found through the following scenario. sys_mkdir() - f2fs_add_link() - __f2fs_add_link() - init_inode_metadata() : lock_page(inode); - f2fs_init_acl() - f2fs_set_acl() - f2fs_setxattr(..., NULL) : This NULL page incurs a deadlock at