Commit ae87b9c2 authored by Jaegeuk Kim's avatar Jaegeuk Kim
Browse files

f2fs: allow F2FS_IPU_NOCACHE for pinned file 



This patch allows f2fs to submit bios of in-place writes on pinned file.

Reviewed-by: default avatarDaeho Jeong <daehojeong@google.com>
Reviewed-by: default avatarChao Yu <chao@kernel.org>
Signed-off-by: default avatarJaegeuk Kim <jaegeuk@kernel.org>
parent 5cc69a27

fs/f2fs/sysfs.c

+2 −1
Original line number Diff line number Diff line
@@ -792,7 +792,8 @@ static ssize_t __sbi_store(struct f2fs_attr *a, 
	if (!strcmp(a->attr.name, "ipu_policy")) {

		if (t >= BIT(F2FS_IPU_MAX))

			return -EINVAL;

		if (t && f2fs_lfs_mode(sbi))

		/* allow F2FS_IPU_NOCACHE only for IPU in the pinned file */

		if (f2fs_lfs_mode(sbi) && (t & ~BIT(F2FS_IPU_NOCACHE)))

			return -EINVAL;

		SM_I(sbi)->ipu_policy = (unsigned int)t;

		return count;