Commit ea1aa12c authored by Jaegeuk Kim's avatar Jaegeuk Kim
Browse files

f2fs: enable in-place-update for fdatasync



This patch enforces in-place-updates only when fdatasync is requested.
If we adopt this in-place-updates for the fdatasync, we can skip to write the
recovery information.
Reviewed-by: default avatarChao Yu <chao2.yu@samsung.com>
Signed-off-by: default avatarJaegeuk Kim <jaegeuk@kernel.org>
parent 6d99ba41
......@@ -998,6 +998,7 @@ enum {
FI_INLINE_DATA, /* used for inline data*/
FI_APPEND_WRITE, /* inode has appended data */
FI_UPDATE_WRITE, /* inode has in-place-update data */
FI_NEED_IPU, /* used fo ipu for fdatasync */
};
static inline void set_inode_flag(struct f2fs_inode_info *fi, int flag)
......
......@@ -127,7 +127,14 @@ int f2fs_sync_file(struct file *file, loff_t start, loff_t end, int datasync)
return 0;
trace_f2fs_sync_file_enter(inode);
/* if fdatasync is triggered, let's do in-place-update */
if (datasync)
set_inode_flag(fi, FI_NEED_IPU);
ret = filemap_write_and_wait_range(inode->i_mapping, start, end);
if (datasync)
clear_inode_flag(fi, FI_NEED_IPU);
if (ret) {
trace_f2fs_sync_file_exit(inode, need_cp, datasync, ret);
return ret;
......
......@@ -486,6 +486,10 @@ static inline bool need_inplace_update(struct inode *inode)
if (S_ISDIR(inode->i_mode))
return false;
/* this is only set during fdatasync */
if (is_inode_flag_set(F2FS_I(inode), FI_NEED_IPU))
return true;
switch (SM_I(sbi)->ipu_policy) {
case F2FS_IPU_FORCE:
return true;
......
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