6.6-stable review patch. If anyone has any objections, please let me know.
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From: Christoph Hellwig hch@lst.de
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 --- fs/xfs/xfs_inode.h | 8 ++++++++ fs/xfs/xfs_ioctl.c | 8 ++++++++ fs/xfs/xfs_iops.c | 7 +++++++ 3 files changed, 23 insertions(+)
diff --git a/fs/xfs/xfs_inode.h b/fs/xfs/xfs_inode.h index 3dc47937da5d..3beb470f1892 100644 --- a/fs/xfs/xfs_inode.h +++ b/fs/xfs/xfs_inode.h @@ -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 diff --git a/fs/xfs/xfs_ioctl.c b/fs/xfs/xfs_ioctl.c index be69e7be713e..535f6d38cdb5 100644 --- a/fs/xfs/xfs_ioctl.c +++ b/fs/xfs/xfs_ioctl.c @@ -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); diff --git a/fs/xfs/xfs_iops.c b/fs/xfs/xfs_iops.c index 2b3b05c28e9e..b8ec045708c3 100644 --- a/fs/xfs/xfs_iops.c +++ b/fs/xfs/xfs_iops.c @@ -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.