[PATCH 2/2] vfs: dedupe should return EPERM if permission is not granted

[Mark Fasheh]

Right now we return EINVAL if a process does not have permission to dedupe a
file. This was an oversight on my part. EPERM gives a true description of
the nature of our error, and EINVAL is already used for the case that the
filesystem does not support dedupe.

Signed-off-by: Mark Fasheh <mfas...@suse.de>
Reviewed-by: Darrick J. Wong <darrick.w...@oracle.com>
Acked-by: David Sterba <dste...@suse.com>
---
 fs/read_write.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/fs/read_write.c b/fs/read_write.c
index be0e8723a049..c734bc2880a5 100644
--- a/fs/read_write.c
+++ b/fs/read_write.c
@@ -1991,7 +1991,7 @@ int vfs_dedupe_file_range_one(struct file *src_file, 
loff_t src_pos,
        if (ret < 0)
                goto out_drop_write;
 
-       ret = -EINVAL;
+       ret = -EPERM;
        if (!allow_file_dedupe(dst_file))
                goto out_drop_write;
 
-- 
2.15.1