commit ece4fa9152ea37c7ebd158af330e3b20e33cf385
author Maxim Levitsky <mlevitsk@redhat.com> Wed Nov 11 17:39:12 2020 +0200
committer Kevin Wolf <kwolf@redhat.com> Tue Nov 17 12:26:48 2020 +0100
tree 50456f1bf98d6281a3f166f188d61fec84b97ca2
parent 5aaabf9161c501142558f1837f6f90c94ee15081

file-posix: allow -EBUSY errors during write zeros on raw block devices

On Linux, fallocate(fd, FALLOC_FL_PUNCH_HOLE) when it is used on a block device,
without O_DIRECT can return -EBUSY if it races with another write to the same page.

Since this is rare and discard is not a critical operation, ignore this error

Signed-off-by: Maxim Levitsky <mlevitsk@redhat.com>
Message-Id: <20201111153913.41840-2-mlevitsk@redhat.com>
Signed-off-by: Kevin Wolf <kwolf@redhat.com>

block/file-posix.c

diff --git a/block/file-posix.c b/block/file-posix.c
index c63926d..d5fd1db 100644
--- a/block/file-posix.c
+++ b/block/file-posix.c
@@ -1698,6 +1698,7 @@
     switch (ret) {
     case -ENOTSUP:
     case -EINVAL:
+    case -EBUSY:
         break;
     default:
         return ret;