This is a note to let you know that I've just added the patch titled Revert "f2fs: put allocate_segment after refresh_sit_entry" to the 4.11-stable tree which can be found at: http://www.kernel.org/git/?p=linux/kernel/git/stable/stable-queue.git;a=summary The filename of the patch is: revert-f2fs-put-allocate_segment-after-refresh_sit_entry.patch and it can be found in the queue-4.11 subdirectory. If you, or anyone else, feels it should not be added to the stable tree, please let <stable@xxxxxxxxxxxxxxx> know about it. >From c6f82fe90d7458e5fa190a6820bfc24f96b0de4e Mon Sep 17 00:00:00 2001 From: Jaegeuk Kim <jaegeuk@xxxxxxxxxx> Date: Tue, 4 Apr 2017 16:45:30 -0700 Subject: Revert "f2fs: put allocate_segment after refresh_sit_entry" From: Jaegeuk Kim <jaegeuk@xxxxxxxxxx> commit c6f82fe90d7458e5fa190a6820bfc24f96b0de4e upstream. This reverts commit 3436c4bdb30de421d46f58c9174669fbcfd40ce0. This makes a leak to register dirty segments. I reproduced the issue by modified postmark which injects a lot of file create/delete/update and finally triggers huge number of SSR allocations. [Jaegeuk Kim: Change missing incorrect comment] Signed-off-by: Jaegeuk Kim <jaegeuk@xxxxxxxxxx> Signed-off-by: Greg Kroah-Hartman <gregkh@xxxxxxxxxxxxxxxxxxx> --- fs/f2fs/segment.c | 9 ++++----- 1 file changed, 4 insertions(+), 5 deletions(-) --- a/fs/f2fs/segment.c +++ b/fs/f2fs/segment.c @@ -1788,15 +1788,14 @@ void allocate_data_block(struct f2fs_sb_ stat_inc_block_count(sbi, curseg); + if (!__has_curseg_space(sbi, type)) + sit_i->s_ops->allocate_segment(sbi, type, false); /* - * SIT information should be updated before segment allocation, - * since SSR needs latest valid block information. + * SIT information should be updated after segment allocation, + * since we need to keep dirty segments precisely under SSR. */ refresh_sit_entry(sbi, old_blkaddr, *new_blkaddr); - if (!__has_curseg_space(sbi, type)) - sit_i->s_ops->allocate_segment(sbi, type, false); - mutex_unlock(&sit_i->sentry_lock); if (page && IS_NODESEG(type)) Patches currently in stable-queue which might be from jaegeuk@xxxxxxxxxx are queue-4.11/f2fs-fix-wrong-max-cost-initialization.patch queue-4.11/f2fs-make-flush-bios-explicitely-sync.patch queue-4.11/revert-f2fs-put-allocate_segment-after-refresh_sit_entry.patch queue-4.11/f2fs-check-entire-encrypted-bigname-when-finding-a-dentry.patch queue-4.11/f2fs-fix-multiple-f2fs_add_link-having-same-name-for-inline-dentry.patch queue-4.11/f2fs-fix-fs-corruption-due-to-zero-inode-page.patch