diff mbox series

[PATCHv3,1/2] common/rc: swapon should not fail for given FS in _require_scratch_swapfile()

Message ID aad3aeb9c717c76fc4e5fd124037da2510f51054.1609848797.git.riteshh@linux.ibm.com (mailing list archive)
State New, archived
Headers show
Series [PATCHv3,1/2] common/rc: swapon should not fail for given FS in _require_scratch_swapfile() | expand

Commit Message

Ritesh Harjani Jan. 5, 2021, 2:31 p.m. UTC
Filesystems e.g. ext* and XFS supports swapon by default and an error
returned with swapon should be treated as a failure.

Signed-off-by: Ritesh Harjani <riteshh@linux.ibm.com>
---
v2 -> v3:
1. Removed whitelisted naming convention.
2. Added ext2/ext3 as well as supported FS for swapon.
3. Removed local variable $fstyp, instead used $FSTYP directly in switch case.

 common/rc | 20 ++++++++++++++++----
 1 file changed, 16 insertions(+), 4 deletions(-)

--
2.26.2

Comments

Darrick J. Wong Jan. 5, 2021, 7:04 p.m. UTC | #1
On Tue, Jan 05, 2021 at 08:01:42PM +0530, Ritesh Harjani wrote:
> Filesystems e.g. ext* and XFS supports swapon by default and an error
> returned with swapon should be treated as a failure.
> 
> Signed-off-by: Ritesh Harjani <riteshh@linux.ibm.com>

Looks ok,
Reviewed-by: Darrick J. Wong <darrick.wong@oracle.com>

--D

> ---
> v2 -> v3:
> 1. Removed whitelisted naming convention.
> 2. Added ext2/ext3 as well as supported FS for swapon.
> 3. Removed local variable $fstyp, instead used $FSTYP directly in switch case.
> 
>  common/rc | 20 ++++++++++++++++----
>  1 file changed, 16 insertions(+), 4 deletions(-)
> 
> diff --git a/common/rc b/common/rc
> index 33b5b598a198..649b1cfd884a 100644
> --- a/common/rc
> +++ b/common/rc
> @@ -2401,10 +2401,22 @@ _require_scratch_swapfile()
>  	# Minimum size for mkswap is 10 pages
>  	_format_swapfile "$SCRATCH_MNT/swap" $(($(get_page_size) * 10))
> 
> -	if ! swapon "$SCRATCH_MNT/swap" >/dev/null 2>&1; then
> -		_scratch_unmount
> -		_notrun "swapfiles are not supported"
> -	fi
> +	# ext* and xfs have supported all variants of swap files since their
> +	# introduction, so swapon should not fail.
> +	case "$FSTYP" in
> +	ext2|ext3|ext4|xfs)
> +		if ! swapon "$SCRATCH_MNT/swap" >/dev/null 2>&1; then
> +			_scratch_unmount
> +			_fail "swapon failed for $FSTYP"
> +		fi
> +		;;
> +	*)
> +		if ! swapon "$SCRATCH_MNT/swap" >/dev/null 2>&1; then
> +			_scratch_unmount
> +			_notrun "swapfiles are not supported"
> +		fi
> +		;;
> +	esac
> 
>  	swapoff "$SCRATCH_MNT/swap" >/dev/null 2>&1
>  	_scratch_unmount
> --
> 2.26.2
>
diff mbox series

Patch

diff --git a/common/rc b/common/rc
index 33b5b598a198..649b1cfd884a 100644
--- a/common/rc
+++ b/common/rc
@@ -2401,10 +2401,22 @@  _require_scratch_swapfile()
 	# Minimum size for mkswap is 10 pages
 	_format_swapfile "$SCRATCH_MNT/swap" $(($(get_page_size) * 10))

-	if ! swapon "$SCRATCH_MNT/swap" >/dev/null 2>&1; then
-		_scratch_unmount
-		_notrun "swapfiles are not supported"
-	fi
+	# ext* and xfs have supported all variants of swap files since their
+	# introduction, so swapon should not fail.
+	case "$FSTYP" in
+	ext2|ext3|ext4|xfs)
+		if ! swapon "$SCRATCH_MNT/swap" >/dev/null 2>&1; then
+			_scratch_unmount
+			_fail "swapon failed for $FSTYP"
+		fi
+		;;
+	*)
+		if ! swapon "$SCRATCH_MNT/swap" >/dev/null 2>&1; then
+			_scratch_unmount
+			_notrun "swapfiles are not supported"
+		fi
+		;;
+	esac

 	swapoff "$SCRATCH_MNT/swap" >/dev/null 2>&1
 	_scratch_unmount