block: don't try Write Same from __blkdev_issue_zeroout

Write Same can return an error asynchronously if it turns out the
underlying SCSI device does not support Write Same, which makes a
proper fallback to other methods in __blkdev_issue_zeroout impossible.
Thus only issue a Write Same from blkdev_issue_zeroout an don't try it
at all from __blkdev_issue_zeroout as a non-invasive workaround.

Signed-off-by: Christoph Hellwig <hch@lst.de>
Reported-by: Junichi Nomura <j-nomura@ce.jp.nec.com>
Fixes: e73c23ff ("block: add async variant of blkdev_issue_zeroout")
Tested-by: Junichi Nomura <j-nomura@ce.jp.nec.com>
Signed-off-by: Jens Axboe <axboe@fb.com>

1 files changed, 2 insertions, 2 deletions

diff --git a/.bashrc b/.bashrc
index 1a2e8ce..6bdf55a 100644
--- a/.bashrc
+++ b/.bashrc
@@ -3,8 +3,8 @@
 parent=$(ps -o comm= -p $PPID)
 
 # use zsh if available and configured
-if [ -f /bin/zsh ] && [ -f .zsh/override_bash ] && [ "x$parent" != "xzsh" ] && [ "x$parent" != "bash" ] ; then
-	exec /bin/zsh
+if [ -x /bin/zsh ] && [ -f .zsh/override_bash ] && [ "x$parent" != "xzsh" ] && [ "x$parent" != "bash" ] ; then
+    exec /bin/zsh
 fi
 
 # If not running interactively, don't do anything