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From: Christoph Hellwig <hch@lst.de>
To: linux-xfs@vger.kernel.org
Cc: Dave Chinner <dchinner@redhat.com>,
	"Darrick J . Wong" <darrick.wong@oracle.com>
Subject: [PATCH 30/32] xfs: clean up bufsize alignment in xfs_ioc_attr_list
Date: Wed, 26 Feb 2020 12:23:04 -0800	[thread overview]
Message-ID: <20200226202306.871241-31-hch@lst.de> (raw)
In-Reply-To: <20200226202306.871241-1-hch@lst.de>

Use the round_down macro, and use the size of the uint32 type we
use in the callback that fills the buffer to make the code a little
more clear - the size of it is always the same as int for platforms
that Linux runs on.

Suggested-by: Dave Chinner <dchinner@redhat.com>
Reviewed-by: Dave Chinner <dchinner@redhat.com>
Signed-off-by: Christoph Hellwig <hch@lst.de>
Reviewed-by: Darrick J. Wong <darrick.wong@oracle.com>
---
 fs/xfs/xfs_ioctl.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/fs/xfs/xfs_ioctl.c b/fs/xfs/xfs_ioctl.c
index 58fd2d219972..c805fdf4ea39 100644
--- a/fs/xfs/xfs_ioctl.c
+++ b/fs/xfs/xfs_ioctl.c
@@ -415,7 +415,7 @@ xfs_ioc_attr_list(
 	context.resynch = 1;
 	context.attr_filter = xfs_attr_filter(flags);
 	context.buffer = buffer;
-	context.bufsize = (bufsize & ~(sizeof(int)-1));  /* align */
+	context.bufsize = round_down(bufsize, sizeof(uint32_t));
 	context.firstu = context.bufsize;
 	context.put_listent = xfs_ioc_attr_put_listent;
 
-- 
2.24.1


  parent reply	other threads:[~2020-02-26 20:25 UTC|newest]

Thread overview: 37+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2020-02-26 20:22 clean up the attr interface v7 Christoph Hellwig
2020-02-26 20:22 ` [PATCH 01/32] xfs: reject invalid flags combinations in XFS_IOC_ATTRLIST_BY_HANDLE Christoph Hellwig
2020-02-26 20:22 ` [PATCH 02/32] xfs: remove the ATTR_INCOMPLETE flag Christoph Hellwig
2020-02-26 20:22 ` [PATCH 03/32] xfs: merge xfs_attr_remove into xfs_attr_set Christoph Hellwig
2020-02-26 20:22 ` [PATCH 04/32] xfs: merge xfs_attrmulti_attr_remove into xfs_attrmulti_attr_set Christoph Hellwig
2020-02-26 20:22 ` [PATCH 05/32] xfs: use strndup_user in XFS_IOC_ATTRMULTI_BY_HANDLE Christoph Hellwig
2020-02-26 20:22 ` [PATCH 06/32] xfs: factor out a helper for a single XFS_IOC_ATTRMULTI_BY_HANDLE op Christoph Hellwig
2020-02-26 20:22 ` [PATCH 07/32] xfs: remove the name == NULL check from xfs_attr_args_init Christoph Hellwig
2020-02-26 20:22 ` [PATCH 08/32] xfs: remove the MAXNAMELEN " Christoph Hellwig
2020-02-26 20:22 ` [PATCH 09/32] xfs: turn xfs_da_args.value into a void pointer Christoph Hellwig
2020-02-26 20:22 ` [PATCH 10/32] xfs: pass an initialized xfs_da_args structure to xfs_attr_set Christoph Hellwig
2020-02-26 20:22 ` [PATCH 11/32] xfs: pass an initialized xfs_da_args to xfs_attr_get Christoph Hellwig
2020-02-26 20:22 ` [PATCH 12/32] xfs: remove the xfs_inode argument to xfs_attr_get_ilocked Christoph Hellwig
2020-02-26 20:22 ` [PATCH 13/32] xfs: remove ATTR_KERNOVAL Christoph Hellwig
2020-02-26 20:22 ` [PATCH 14/32] xfs: remove ATTR_ALLOC and XFS_DA_OP_ALLOCVAL Christoph Hellwig
2020-02-26 20:22 ` [PATCH 15/32] xfs: replace ATTR_KERNOTIME with XFS_DA_OP_NOTIME Christoph Hellwig
2020-02-26 20:22 ` [PATCH 16/32] xfs: factor out a xfs_attr_match helper Christoph Hellwig
2020-02-26 20:22 ` [PATCH 17/32] xfs: cleanup struct xfs_attr_list_context Christoph Hellwig
2020-02-26 20:22 ` [PATCH 18/32] xfs: remove the unused ATTR_ENTRY macro Christoph Hellwig
2020-02-26 20:22 ` [PATCH 19/32] xfs: open code ATTR_ENTSIZE Christoph Hellwig
2020-02-26 20:22 ` [PATCH 20/32] xfs: move the legacy xfs_attr_list to xfs_ioctl.c Christoph Hellwig
2020-02-26 20:22 ` [PATCH 21/32] xfs: rename xfs_attr_list_int to xfs_attr_list Christoph Hellwig
2020-02-26 20:22 ` [PATCH 22/32] xfs: lift common checks into xfs_ioc_attr_list Christoph Hellwig
2020-02-26 20:22 ` [PATCH 23/32] xfs: lift buffer allocation " Christoph Hellwig
2020-02-26 20:22 ` [PATCH 24/32] xfs: lift cursor copy in/out " Christoph Hellwig
2020-02-26 20:22 ` [PATCH 25/32] xfs: improve xfs_forget_acl Christoph Hellwig
2020-02-26 20:23 ` [PATCH 26/32] xfs: clean up the ATTR_REPLACE checks Christoph Hellwig
2020-02-26 20:23 ` [PATCH 27/32] xfs: clean up the attr flag confusion Christoph Hellwig
2020-02-26 20:23 ` [PATCH 28/32] xfs: remove XFS_DA_OP_INCOMPLETE Christoph Hellwig
2020-02-26 20:23 ` [PATCH 29/32] xfs: embedded the attrlist cursor into struct xfs_attr_list_context Christoph Hellwig
2020-02-26 20:23 ` Christoph Hellwig [this message]
2020-02-26 20:23 ` [PATCH 31/32] xfs: only allocate the buffer size actually needed in __xfs_set_acl Christoph Hellwig
2020-02-26 20:37   ` Darrick J. Wong
2020-02-26 21:35   ` Dave Chinner
2020-02-26 20:23 ` [PATCH 32/32] xfs: switch xfs_attrmulti_attr_get to lazy attr buffer allocation Christoph Hellwig
2020-02-26 20:33   ` Darrick J. Wong
2020-02-26 21:40   ` Dave Chinner

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