f2fs: add REQ_TIME time update for some user behaviors

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@unisoc.com>
Reviewed-by: Chao Yu <chao@kernel.org>
Signed-off-by: Jaegeuk Kim <jaegeuk@kernel.org>

diff --git a/fs/f2fs/file.c b/fs/f2fs/file.c
index 681dfa8775ab40c1e56eff9450bc3fd897d0301c..0d2626a6a21fe715f565c3de8af897eefc97e4e2 100644 (file)
--- a/fs/f2fs/file.c
+++ b/fs/f2fs/file.c
@@ -2375,13 +2375,14 @@ 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)
@@ -2809,7 +2810,8 @@ 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;
 
@@ -3622,6 +3624,8 @@ 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]);
 out:
+       if (released_blocks)
+               f2fs_update_time(sbi, REQ_TIME);
        inode_unlock(inode);
 
        mnt_drop_write_file(filp);
@@ -3790,6 +3794,8 @@ static int f2fs_reserve_compress_blocks(struct file *filp, unsigned long arg)
                f2fs_mark_inode_dirty_sync(inode, true);
        }
 unlock_inode:
+       if (reserved_blocks)
+               f2fs_update_time(sbi, REQ_TIME);
        inode_unlock(inode);
        mnt_drop_write_file(filp);
 
@@ -3986,6 +3992,7 @@ 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]);
@@ -4193,6 +4200,7 @@ 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);
@@ -4270,6 +4278,7 @@ 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);