[PATCH] f2fs: check the generic conditions first

[Jaegeuk Kim <jaegeuk@kernel.org>]

Let's return errors caught by the generic checks. This fixes generic/494 where
it expects to see EBUSY by setattr_prepare instead of EINVAL by f2fs for active
swapfile.

Signed-off-by: Jaegeuk Kim <jaegeuk@kernel.org>
---
 fs/f2fs/file.c | 24 ++++++++++++------------
 1 file changed, 12 insertions(+), 12 deletions(-)

diff --git a/fs/f2fs/file.c b/fs/f2fs/file.c
index bc0ca697e064..bd835c4f874a 100644
--- a/fs/f2fs/file.c
+++ b/fs/f2fs/file.c
@@ -1048,6 +1048,18 @@ int f2fs_setattr(struct mnt_idmap *idmap, struct dentry *dentry,
 	if (unlikely(f2fs_cp_error(sbi)))
 		return -EIO;
 
+	err = setattr_prepare(idmap, dentry, attr);
+	if (err)
+		return err;
+
+	err = fscrypt_prepare_setattr(dentry, attr);
+	if (err)
+		return err;
+
+	err = fsverity_prepare_setattr(dentry, attr);
+	if (err)
+		return err;
+
 	if (unlikely(IS_IMMUTABLE(inode)))
 		return -EPERM;
 
@@ -1077,18 +1089,6 @@ int f2fs_setattr(struct mnt_idmap *idmap, struct dentry *dentry,
 			return -EINVAL;
 	}
 
-	err = setattr_prepare(idmap, dentry, attr);
-	if (err)
-		return err;
-
-	err = fscrypt_prepare_setattr(dentry, attr);
-	if (err)
-		return err;
-
-	err = fsverity_prepare_setattr(dentry, attr);
-	if (err)
-		return err;
-
 	if (is_quota_modification(idmap, inode, attr)) {
 		err = f2fs_dquot_initialize(inode);
 		if (err)
-- 
2.50.0.727.gbf7dc18ff4-goog