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[PULL,3/7] file-posix: allow -EBUSY errors during write zeros on raw block devices

Message ID 20201117121558.249585-4-kwolf@redhat.com (mailing list archive)
State New, archived
Headers show
Series [PULL,1/7] char-stdio: Fix QMP default for 'signal' | expand

Commit Message

Kevin Wolf Nov. 17, 2020, 12:15 p.m. UTC
From: Maxim Levitsky <mlevitsk@redhat.com>

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 | 1 +
 1 file changed, 1 insertion(+)
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diff --git a/block/file-posix.c b/block/file-posix.c
index c63926d592..d5fd1dbcd2 100644
--- a/block/file-posix.c
+++ b/block/file-posix.c
@@ -1698,6 +1698,7 @@  static int handle_aiocb_write_zeroes_unmap(void *opaque)
     switch (ret) {
     case -ENOTSUP:
     case -EINVAL:
+    case -EBUSY:
         return ret;