diff options
author | Chao Yu <yuchao0@huawei.com> | 2018-01-17 11:31:38 +0300 |
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committer | Jaegeuk Kim <jaegeuk@kernel.org> | 2018-01-23 01:56:53 +0300 |
commit | bb9e3bb8dbf5975a493e4e2dfbb900018579890c (patch) | |
tree | e2197b4ef49b7e928bf289f89e7267e15cecc6a9 /fs/f2fs/data.c | |
parent | eb4497975e82448746bb7de3d13b743b7145aed7 (diff) | |
download | linux-bb9e3bb8dbf5975a493e4e2dfbb900018579890c.tar.xz |
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>
Diffstat (limited to 'fs/f2fs/data.c')
-rw-r--r-- | fs/f2fs/data.c | 75 |
1 files changed, 67 insertions, 8 deletions
diff --git a/fs/f2fs/data.c b/fs/f2fs/data.c index fa91bfeb754b..f428f7b79c64 100644 --- a/fs/f2fs/data.c +++ b/fs/f2fs/data.c @@ -1518,20 +1518,79 @@ retry_encrypt: return PTR_ERR(fio->encrypted_page); } -static inline bool need_inplace_update(struct f2fs_io_info *fio) +static inline bool check_inplace_update_policy(struct inode *inode, + struct f2fs_io_info *fio) { - struct inode *inode = fio->page->mapping->host; + 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 (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 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 (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) |