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

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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 <mfasheh@xxxxxxx>
Reviewed-by: Darrick J. Wong <darrick.wong@xxxxxxxxxx>
Acked-by: David Sterba <dsterba@xxxxxxxx>
---
 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




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