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f2fs: split need_inplace_update 

This patch splits need_inplace_update to two functions:
a. should_update_inplace() includes all conditions that we must use IPU.
b. should_update_outplace() includes all conditions that we must use OPU.

So that, in f2fs_ioc_set_pin_file() and f2fs_defragment_range(), we can
use corresponding function to check whether we can trigger OPU/IPU or not.

Signed-off-by: Chao Yu <yuchao0@huawei.com>
Signed-off-by: Jaegeuk Kim <jaegeuk@kernel.org>
This commit is contained in:
Chao Yu 2018-01-17 16:31:38 +08:00 committed by Jaegeuk Kim
parent eb4497975e
commit bb9e3bb8db
4 changed files with 75 additions and 50 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

75
fs/f2fs/data.c
View File

@ -1518,20 +1518,79 @@ retry_encrypt:
return PTR_ERR(fio->encrypted_page);
}
static inline bool check_inplace_update_policy(struct inode *inode,
struct f2fs_io_info *fio)
{
struct f2fs_sb_info *sbi = F2FS_I_SB(inode);
unsigned int policy = SM_I(sbi)->ipu_policy;
if (policy & (0x1 << F2FS_IPU_FORCE))
return true;
if (policy & (0x1 << F2FS_IPU_SSR) && need_SSR(sbi))
return true;
if (policy & (0x1 << F2FS_IPU_UTIL) &&
utilization(sbi) > SM_I(sbi)->min_ipu_util)
return true;
if (policy & (0x1 << F2FS_IPU_SSR_UTIL) && need_SSR(sbi) &&
utilization(sbi) > SM_I(sbi)->min_ipu_util)
return true;
/*
* IPU for rewrite async pages
*/
if (policy & (0x1 << F2FS_IPU_ASYNC) &&
fio && fio->op == REQ_OP_WRITE &&
!(fio->op_flags & REQ_SYNC) &&
!f2fs_encrypted_inode(inode))
return true;
/* this is only set during fdatasync */
if (policy & (0x1 << F2FS_IPU_FSYNC) &&
is_inode_flag_set(inode, FI_NEED_IPU))
return true;
return false;
}
bool should_update_inplace(struct inode *inode, struct f2fs_io_info *fio)
{
if (f2fs_is_pinned_file(inode))
return true;
/* if this is cold file, we should overwrite to avoid fragmentation */
if (file_is_cold(inode))
return true;
return check_inplace_update_policy(inode, fio);
}
bool should_update_outplace(struct inode *inode, struct f2fs_io_info *fio)
{
struct f2fs_sb_info *sbi = F2FS_I_SB(inode);
if (test_opt(sbi, LFS))
return true;
if (S_ISDIR(inode->i_mode))
return true;
if (f2fs_is_atomic_file(inode))
return true;
if (fio) {
if (is_cold_data(fio->page))
return true;
if (IS_ATOMIC_WRITTEN_PAGE(fio->page))
return true;
}
return false;
}
static inline bool need_inplace_update(struct f2fs_io_info *fio)
{
struct inode *inode = fio->page->mapping->host;
if (f2fs_is_pinned_file(inode))
return true;
if (S_ISDIR(inode->i_mode) || f2fs_is_atomic_file(inode))
return false;
if (is_cold_data(fio->page))
return false;
if (IS_ATOMIC_WRITTEN_PAGE(fio->page))
if (should_update_outplace(inode, fio))
return false;
return need_inplace_update_policy(inode, fio);
return should_update_inplace(inode, fio);
}
static inline bool valid_ipu_blkaddr(struct f2fs_io_info *fio)

2
fs/f2fs/f2fs.h
View File

@ -2834,6 +2834,8 @@ int f2fs_map_blocks(struct inode *inode, struct f2fs_map_blocks *map,
int create, int flag);
int f2fs_fiemap(struct inode *inode, struct fiemap_extent_info *fieinfo,
u64 start, u64 len);
bool should_update_inplace(struct inode *inode, struct f2fs_io_info *fio);
bool should_update_outplace(struct inode *inode, struct f2fs_io_info *fio);
void f2fs_set_page_dirty_nobuffers(struct page *page);
int __f2fs_write_data_pages(struct address_space *mapping,
struct writeback_control *wbc,

7
fs/f2fs/file.c
View File

@ -2082,7 +2082,7 @@ static int f2fs_defragment_range(struct f2fs_sb_info *sbi,
int err;
/* if in-place-update policy is enabled, don't waste time here */
if (need_inplace_update_policy(inode, NULL))
if (should_update_inplace(inode, NULL))
return -EINVAL;
pg_start = range->start >> PAGE_SHIFT;
@ -2716,6 +2716,11 @@ static int f2fs_ioc_set_pin_file(struct file *filp, unsigned long arg)
inode_lock(inode);
if (should_update_outplace(inode, NULL)) {
ret = -EINVAL;
goto out;
}
if (!pin) {
clear_inode_flag(inode, FI_PIN_FILE);
F2FS_I(inode)->i_gc_failures = 1;

41
fs/f2fs/segment.h
View File

@ -580,47 +580,6 @@ enum {
F2FS_IPU_ASYNC,
};
static inline bool need_inplace_update_policy(struct inode *inode,
struct f2fs_io_info *fio)
{
struct f2fs_sb_info *sbi = F2FS_I_SB(inode);
unsigned int policy = SM_I(sbi)->ipu_policy;
if (test_opt(sbi, LFS))
return false;
/* if this is cold file, we should overwrite to avoid fragmentation */
if (file_is_cold(inode))
return true;
if (policy & (0x1 << F2FS_IPU_FORCE))
return true;
if (policy & (0x1 << F2FS_IPU_SSR) && need_SSR(sbi))
return true;
if (policy & (0x1 << F2FS_IPU_UTIL) &&
utilization(sbi) > SM_I(sbi)->min_ipu_util)
return true;
if (policy & (0x1 << F2FS_IPU_SSR_UTIL) && need_SSR(sbi) &&
utilization(sbi) > SM_I(sbi)->min_ipu_util)
return true;
/*
* IPU for rewrite async pages
*/
if (policy & (0x1 << F2FS_IPU_ASYNC) &&
fio && fio->op == REQ_OP_WRITE &&
!(fio->op_flags & REQ_SYNC) &&
!f2fs_encrypted_inode(inode))
return true;
/* this is only set during fdatasync */
if (policy & (0x1 << F2FS_IPU_FSYNC) &&
is_inode_flag_set(inode, FI_NEED_IPU))
return true;
return false;
}
static inline unsigned int curseg_segno(struct f2fs_sb_info *sbi,
int type)
{