Patch "f2fs: fix wrong max cost initialization" has been added to the 4.11-stable tree

Patch "f2fs: fix wrong max cost initialization" has been added to the 4.11-stable tree

[gregkh]

This is a note to let you know that I've just added the patch titled

    f2fs: fix wrong max cost initialization

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:
     f2fs-fix-wrong-max-cost-initialization.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@vger.kernel.org> know about it.


>From c541a51b8ce81d003b02ed67ad3604a2e6220e3e Mon Sep 17 00:00:00 2001
From: Jaegeuk Kim <jaegeuk@kernel.org>
Date: Sat, 25 Mar 2017 00:03:02 -0700
Subject: f2fs: fix wrong max cost initialization

From: Jaegeuk Kim <jaegeuk@kernel.org>

commit c541a51b8ce81d003b02ed67ad3604a2e6220e3e upstream.

This patch fixes missing increased max cost caused by a patch that we increased
cose of data segments in greedy algorithm.

Fixes: b9cd20619 "f2fs: node segment is prior to data segment selected victim"
Signed-off-by: Jaegeuk Kim <jaegeuk@kernel.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>

---
 fs/f2fs/gc.c |    2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

--- a/fs/f2fs/gc.c
+++ b/fs/f2fs/gc.c
@@ -182,7 +182,7 @@ static unsigned int get_max_cost(struct
 	if (p->alloc_mode == SSR)
 		return sbi->blocks_per_seg;
 	if (p->gc_mode == GC_GREEDY)
-		return sbi->blocks_per_seg * p->ofs_unit;
+		return 2 * sbi->blocks_per_seg * p->ofs_unit;
 	else if (p->gc_mode == GC_CB)
 		return UINT_MAX;
 	else /* No other gc_mode */


Patches currently in stable-queue which might be from jaegeuk@kernel.org 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