Re: [PATCH V2] f2fs: add REQ_TIME time update for some user behaviors

From: Chao Yu
Date: Mon Mar 18 2024 - 06:02:17 EST


On 2024/3/15 19:32, Zhiguo Niu wrote:
some user behaviors requested filesystem operations, which
will cause filesystem not idle.
Meanwhile adjust some f2fs_update_time(REQ_TIME) positions.

Signed-off-by: Zhiguo Niu <zhiguo.niu@xxxxxxxxxx>
---
v2: update patch according to Chao's suggestions
---
---
fs/f2fs/file.c | 13 ++++++++++---
1 file changed, 10 insertions(+), 3 deletions(-)

diff --git a/fs/f2fs/file.c b/fs/f2fs/file.c
index 1761ad1..8c9d6ea 100644
--- a/fs/f2fs/file.c
+++ b/fs/f2fs/file.c
@@ -2354,13 +2354,14 @@ static bool uuid_is_nonzero(__u8 u[16])
static int f2fs_ioc_set_encryption_policy(struct file *filp, unsigned long arg)
{
struct inode *inode = file_inode(filp);
+ int ret;
if (!f2fs_sb_has_encrypt(F2FS_I_SB(inode)))
return -EOPNOTSUPP;
+ ret = fscrypt_ioctl_set_policy(filp, (const void __user *)arg);
f2fs_update_time(F2FS_I_SB(inode), REQ_TIME);
-
- return fscrypt_ioctl_set_policy(filp, (const void __user *)arg);
+ return ret;
}
static int f2fs_ioc_get_encryption_policy(struct file *filp, unsigned long arg)
@@ -2786,7 +2787,8 @@ static int f2fs_ioc_defragment(struct file *filp, unsigned long arg)
err = f2fs_defragment_range(sbi, filp, &range);
mnt_drop_write_file(filp);
- f2fs_update_time(sbi, REQ_TIME);
+ if (range.len)
+ f2fs_update_time(sbi, REQ_TIME);
if (err < 0)
return err;
@@ -3599,6 +3601,7 @@ static int f2fs_release_compress_blocks(struct file *filp, unsigned long arg)
filemap_invalidate_unlock(inode->i_mapping);
f2fs_up_write(&F2FS_I(inode)->i_gc_rwsem[WRITE]);
+ f2fs_update_time(sbi, REQ_TIME);
out:

if (released_blocks)
f2fs_update_time();

inode_unlock(inode);
@@ -3768,6 +3771,7 @@ static int f2fs_reserve_compress_blocks(struct file *filp, unsigned long arg)
clear_inode_flag(inode, FI_COMPRESS_RELEASED);
inode_set_ctime_current(inode);
f2fs_mark_inode_dirty_sync(inode, true);
+ f2fs_update_time(sbi, REQ_TIME);
}
unlock_inode:

if (reserved_blocks)
f2fs_update_time();

Thanks,

inode_unlock(inode);
@@ -3966,6 +3970,7 @@ static int f2fs_sec_trim_file(struct file *filp, unsigned long arg)
if (len)
ret = f2fs_secure_erase(prev_bdev, inode, prev_index,
prev_block, len, range.flags);
+ f2fs_update_time(sbi, REQ_TIME);
out:
filemap_invalidate_unlock(mapping);
f2fs_up_write(&F2FS_I(inode)->i_gc_rwsem[WRITE]);
@@ -4175,6 +4180,7 @@ static int f2fs_ioc_decompress_file(struct file *filp)
if (ret)
f2fs_warn(sbi, "%s: The file might be partially decompressed (errno=%d). Please delete the file.",
__func__, ret);
+ f2fs_update_time(sbi, REQ_TIME);
out:
inode_unlock(inode);
file_end_write(filp);
@@ -4254,6 +4260,7 @@ static int f2fs_ioc_compress_file(struct file *filp)
if (ret)
f2fs_warn(sbi, "%s: The file might be partially compressed (errno=%d). Please delete the file.",
__func__, ret);
+ f2fs_update_time(sbi, REQ_TIME);
out:
inode_unlock(inode);
file_end_write(filp);