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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>
master
Maxim Levitsky 2020-11-11 17:39:12 +02:00 committed by Kevin Wolf
parent 5aaabf9161
commit ece4fa9152
1 changed files with 1 additions and 0 deletions
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block/file-posix.c
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@ -1698,6 +1698,7 @@ static int handle_aiocb_write_zeroes_unmap(void *opaque)
switch (ret) {
case -ENOTSUP:
case -EINVAL:
case -EBUSY:
break;
default:
return ret;