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f2fs: treat volatile file's data as hot one

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Volatile file's data will be updated oftenly, so it'd better to place
its data into hot data segment.

In addition, for atomic file, we change to check FI_ATOMIC_FILE instead
of FI_HOT_DATA to make code readability better.

Signed-off-by: Chao Yu <yuchao0@huawei.com>
Signed-off-by: Jaegeuk Kim <jaegeuk@kernel.org>
This commit is contained in:
Chao Yu 2018-04-26 17:05:50 +08:00 committed by Jaegeuk Kim
parent af8ff65bb8
commit b4c3ca8ba9
2 changed files with 3 additions and 4 deletions
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2
fs/f2fs/file.c
View File

@ -1696,7 +1696,6 @@ static int f2fs_ioc_start_atomic_write(struct file *filp)
if (ret)
goto out;
skip_flush:
set_inode_flag(inode, FI_HOT_DATA);
set_inode_flag(inode, FI_ATOMIC_FILE);
f2fs_update_time(F2FS_I_SB(inode), REQ_TIME);
@ -1739,7 +1738,6 @@ static int f2fs_ioc_commit_atomic_write(struct file *filp)
ret = f2fs_do_sync_file(filp, 0, LLONG_MAX, 0, true);
if (!ret) {
clear_inode_flag(inode, FI_ATOMIC_FILE);
clear_inode_flag(inode, FI_HOT_DATA);
stat_dec_atomic_write(inode);
}
} else {

5
fs/f2fs/segment.c
View File

@ -309,7 +309,6 @@ void drop_inmem_pages(struct inode *inode)
mutex_unlock(&fi->inmem_lock);
clear_inode_flag(inode, FI_ATOMIC_FILE);
clear_inode_flag(inode, FI_HOT_DATA);
stat_dec_atomic_write(inode);
}
@ -2613,7 +2612,9 @@ static int __get_segment_type_6(struct f2fs_io_info *fio)
if (is_cold_data(fio->page) || file_is_cold(inode))
return CURSEG_COLD_DATA;
if (file_is_hot(inode) ||
is_inode_flag_set(inode, FI_HOT_DATA))
is_inode_flag_set(inode, FI_HOT_DATA) ||
is_inode_flag_set(inode, FI_ATOMIC_FILE) ||
is_inode_flag_set(inode, FI_VOLATILE_FILE))
return CURSEG_HOT_DATA;
return rw_hint_to_seg_type(inode->i_write_hint);
} else {