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Subject[PATCH v2 1/3] f2fs: fix to alloc_mode changed after remount on a small volume device
Date
The commit 84b89e5d943d8 ("f2fs: add auto tuning for small devices") add
tuning for small volume device, now support to tune alloce_mode to 'reuse'
if it's small size. But the alloc_mode will change to 'default' when do
remount on this small size dievce. This patch fo fix alloc_mode changed
when do remount for a small volume device.

Signed-off-by: Yuwei Guan <Yuwei.Guan@zeekrlife.com>
---
fs/f2fs/super.c | 7 +++++--
1 file changed, 5 insertions(+), 2 deletions(-)

diff --git a/fs/f2fs/super.c b/fs/f2fs/super.c
index 3834ead04620..17b9e70b8f32 100644
--- a/fs/f2fs/super.c
+++ b/fs/f2fs/super.c
@@ -2043,7 +2043,11 @@ static void default_options(struct f2fs_sb_info *sbi)
F2FS_OPTION(sbi).active_logs = NR_CURSEG_PERSIST_TYPE;

F2FS_OPTION(sbi).inline_xattr_size = DEFAULT_INLINE_XATTR_ADDRS;
- F2FS_OPTION(sbi).alloc_mode = ALLOC_MODE_DEFAULT;
+ if (le32_to_cpu(F2FS_RAW_SUPER(sbi)->segment_count_main) <=
+ SMALL_VOLUME_SEGMENTS)
+ F2FS_OPTION(sbi).alloc_mode = ALLOC_MODE_REUSE;
+ else
+ F2FS_OPTION(sbi).alloc_mode = ALLOC_MODE_DEFAULT;
F2FS_OPTION(sbi).fsync_mode = FSYNC_MODE_POSIX;
F2FS_OPTION(sbi).s_resuid = make_kuid(&init_user_ns, F2FS_DEF_RESUID);
F2FS_OPTION(sbi).s_resgid = make_kgid(&init_user_ns, F2FS_DEF_RESGID);
@@ -4060,7 +4064,6 @@ static void f2fs_tuning_parameters(struct f2fs_sb_info *sbi)

/* adjust parameters according to the volume size */
if (sm_i->main_segments <= SMALL_VOLUME_SEGMENTS) {
- F2FS_OPTION(sbi).alloc_mode = ALLOC_MODE_REUSE;
if (f2fs_block_unit_discard(sbi))
sm_i->dcc_info->discard_granularity = 1;
sm_i->ipu_policy = 1 << F2FS_IPU_FORCE |
--
2.34.1
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