FROMGIT: f2fs: increase the limit for reserve_root
This patch increases the threshold that limits the reserved root space from 0.2%
to 12.5% by using simple shift operation.
Typically Android sets 128MB, but if the storage capacity is 32GB, 0.2% which is
around 64MB becomes too small. Let's relax it.
Bug: 243493735
Cc: [email protected]
Reported-by: Aran Dalton <[email protected]>
Signed-off-by: Jaegeuk Kim <[email protected]>
Change-Id: Ia76ae8f9dd1c7a5f123a561f081bf5a4a29ac186
(cherry picked from commit cf42f1d7ab33ea2637f3c6b786a76302f719726b
https://git.kernel.org/pub/scm/linux/kernel/git/jaegeuk/f2fs.git dev)
diff --git a/fs/f2fs/super.c b/fs/f2fs/super.c
index b07d90a..bdea4ec 100644
--- a/fs/f2fs/super.c
+++ b/fs/f2fs/super.c
@@ -309,10 +309,10 @@ static void f2fs_destroy_casefold_cache(void) { }
static inline void limit_reserve_root(struct f2fs_sb_info *sbi)
{
- block_t limit = min((sbi->user_block_count << 1) / 1000,
+ block_t limit = min((sbi->user_block_count >> 3),
sbi->user_block_count - sbi->reserved_blocks);
- /* limit is 0.2% */
+ /* limit is 12.5% */
if (test_opt(sbi, RESERVE_ROOT) &&
F2FS_OPTION(sbi).root_reserved_blocks > limit) {
F2FS_OPTION(sbi).root_reserved_blocks = limit;
