From: Jaegeuk Kim <jaegeuk@kernel.org>
To: linux-kernel@vger.kernel.org, linux-f2fs-devel@lists.sourceforge.net
Cc: Jaegeuk Kim <jaegeuk@kernel.org>
Subject: [PATCH] f2fs: increase the limit for reserve_root
Date: Tue, 23 Aug 2022 10:21:24 -0700 [thread overview]
Message-ID: <20220823172124.2285995-1-jaegeuk@kernel.org> (raw)
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.
Signed-off-by: Jaegeuk Kim <jaegeuk@kernel.org>
---
fs/f2fs/super.c | 4 ++--
1 file changed, 2 insertions(+), 2 deletions(-)
diff --git a/fs/f2fs/super.c b/fs/f2fs/super.c
index 09972b709cdd..d1b4de5b4083 100644
--- a/fs/f2fs/super.c
+++ b/fs/f2fs/super.c
@@ -301,10 +301,10 @@ 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;
--
2.37.1.595.g718a3a8f04-goog
next reply other threads:[~2022-08-23 18:55 UTC|newest]
Thread overview: 3+ messages / expand[flat|nested] mbox.gz Atom feed top
2022-08-23 17:21 Jaegeuk Kim [this message]
2022-08-24 2:26 ` [PATCH] f2fs: increase the limit for reserve_root Jaegeuk Kim
2022-09-13 3:15 ` [f2fs-dev] " Chao Yu
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