f2fs: change the ipu_policy option to enable combinations
This patch changes the ipu_policy setting to use any combination of orthogonal policies.
Signed-off-by: Changman Lee <cm224.lee@samsung.com>
Signed-off-by: Jaegeuk Kim <jaegeuk@kernel.org>
diff --git a/fs/f2fs/segment.h b/fs/f2fs/segment.h
index 032c090..d317b61 100644
--- a/fs/f2fs/segment.h
+++ b/fs/f2fs/segment.h
@@ -487,40 +487,33 @@
F2FS_IPU_UTIL,
F2FS_IPU_SSR_UTIL,
F2FS_IPU_FSYNC,
- F2FS_IPU_DISABLE,
};
static inline bool need_inplace_update(struct inode *inode)
{
struct f2fs_sb_info *sbi = F2FS_I_SB(inode);
+ unsigned int policy = SM_I(sbi)->ipu_policy;
/* IPU can be done only for the user data */
if (S_ISDIR(inode->i_mode))
return false;
- switch (SM_I(sbi)->ipu_policy) {
- case F2FS_IPU_FORCE:
+ if (policy & (0x1 << F2FS_IPU_FORCE))
return true;
- case F2FS_IPU_SSR:
- if (need_SSR(sbi))
- return true;
- break;
- case F2FS_IPU_UTIL:
- if (utilization(sbi) > SM_I(sbi)->min_ipu_util)
- return true;
- break;
- case F2FS_IPU_SSR_UTIL:
- if (need_SSR(sbi) && utilization(sbi) > SM_I(sbi)->min_ipu_util)
- return true;
- break;
- case F2FS_IPU_FSYNC:
- /* this is only set during fdatasync */
- if (is_inode_flag_set(F2FS_I(inode), FI_NEED_IPU))
- return true;
- break;
- case F2FS_IPU_DISABLE:
- break;
- }
+ 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;
+
+ /* this is only set during fdatasync */
+ if (policy & (0x1 << F2FS_IPU_FSYNC) &&
+ is_inode_flag_set(F2FS_I(inode), FI_NEED_IPU))
+ return true;
+
return false;
}