[PATCH 5.4 023/120] afs: Return -EAGAIN, not -EREMOTEIO, when a file already locked

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From: David Howells <dhowells@xxxxxxxxxx>

[ Upstream commit 0066f1b0e27556381402db3ff31f85d2a2265858 ]

When trying to get a file lock on an AFS file, the server may return
UAEAGAIN to indicate that the lock is already held.  This is currently
translated by the default path to -EREMOTEIO.

Translate it instead to -EAGAIN so that we know we can retry it.

Signed-off-by: David Howells <dhowells@xxxxxxxxxx>
Reviewed-by: Jeffrey E Altman <jaltman@xxxxxxxxxxxx>
cc: Marc Dionne <marc.dionne@xxxxxxxxxxxx>
cc: linux-afs@xxxxxxxxxxxxxxxxxxx
Link: https://lore.kernel.org/r/166075761334.3533338.2591992675160918098.stgit@xxxxxxxxxxxxxxxxxxxxxx/
Signed-off-by: Linus Torvalds <torvalds@xxxxxxxxxxxxxxxxxxxx>
Signed-off-by: Sasha Levin <sashal@xxxxxxxxxx>
---
 fs/afs/misc.c | 1 +
 1 file changed, 1 insertion(+)

diff --git a/fs/afs/misc.c b/fs/afs/misc.c
index 5334f1bd2bca..5171d6d99031 100644
--- a/fs/afs/misc.c
+++ b/fs/afs/misc.c
@@ -69,6 +69,7 @@ int afs_abort_to_error(u32 abort_code)
 		/* Unified AFS error table */
 	case UAEPERM:			return -EPERM;
 	case UAENOENT:			return -ENOENT;
+	case UAEAGAIN:			return -EAGAIN;
 	case UAEACCES:			return -EACCES;
 	case UAEBUSY:			return -EBUSY;
 	case UAEEXIST:			return -EEXIST;
-- 
2.35.1






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