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xfs: respect the stable writes flag on the RT device 

commit 9c04138414c00ae61421f36ada002712c4bac94a upstream.

Update the per-folio stable writes flag dependening on which device an
inode resides on.

Signed-off-by: Christoph Hellwig <hch@lst.de>
Link: https://lore.kernel.org/r/20231025141020.192413-5-hch@lst.de
Reviewed-by: Darrick J. Wong <djwong@kernel.org>
Signed-off-by: Christian Brauner <brauner@kernel.org>
Signed-off-by: Catherine Hoang <catherine.hoang@oracle.com>
Acked-by: Chandan Babu R <chandanbabu@kernel.org>
Signed-off-by: Sasha Levin <sashal@kernel.org>
This commit is contained in:
Christoph Hellwig 2024-02-08 15:20:54 -08:00 committed by Greg Kroah-Hartman
parent d7d5ed6536
commit 05955a703b
3 changed files with 23 additions and 0 deletions
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8
fs/xfs/xfs_inode.h
View File

@ -569,6 +569,14 @@ extern void xfs_setup_inode(struct xfs_inode *ip);
extern void xfs_setup_iops(struct xfs_inode *ip);
extern void xfs_diflags_to_iflags(struct xfs_inode *ip, bool init);
static inline void xfs_update_stable_writes(struct xfs_inode *ip)
{
if (bdev_stable_writes(xfs_inode_buftarg(ip)->bt_bdev))
mapping_set_stable_writes(VFS_I(ip)->i_mapping);
else
mapping_clear_stable_writes(VFS_I(ip)->i_mapping);
}
/*
* When setting up a newly allocated inode, we need to call
* xfs_finish_inode_setup() once the inode is fully instantiated at

8
fs/xfs/xfs_ioctl.c
View File

@ -1149,6 +1149,14 @@ xfs_ioctl_setattr_xflags(
ip->i_diflags2 = i_flags2;
xfs_diflags_to_iflags(ip, false);
/*
* Make the stable writes flag match that of the device the inode
* resides on when flipping the RT flag.
*/
if (rtflag != XFS_IS_REALTIME_INODE(ip) && S_ISREG(VFS_I(ip)->i_mode))
xfs_update_stable_writes(ip);
xfs_trans_ichgtime(tp, ip, XFS_ICHGTIME_CHG);
xfs_trans_log_inode(tp, ip, XFS_ILOG_CORE);
XFS_STATS_INC(mp, xs_ig_attrchg);

7
fs/xfs/xfs_iops.c
View File

@ -1298,6 +1298,13 @@ xfs_setup_inode(
gfp_mask = mapping_gfp_mask(inode->i_mapping);
mapping_set_gfp_mask(inode->i_mapping, (gfp_mask & ~(__GFP_FS)));
/*
* For real-time inodes update the stable write flags to that of the RT
* device instead of the data device.
*/
if (S_ISREG(inode->i_mode) && XFS_IS_REALTIME_INODE(ip))
xfs_update_stable_writes(ip);
/*
* If there is no attribute fork no ACL can exist on this inode,
* and it can't have any file capabilities attached to it either.