From 669c8c823359d9dac21c37ca25737a82e559aaad Mon Sep 17 00:00:00 2001 From: Allison Henderson Date: Wed, 22 Jun 2022 14:28:52 -0500 Subject: [PATCH] xfs: Skip flip flags for delayed attrs Source kernel commit: f38dc503d366b589d98d5676a5b279d10b47bcb9 This is a clean up patch that skips the flip flag logic for delayed attr renames. Since the log replay keeps the inode locked, we do not need to worry about race windows with attr lookups. So we can skip over flipping the flag and the extra transaction roll for it Signed-off-by: Allison Henderson Reviewed-by: Darrick J. Wong Reviewed-by: Chandan Babu R Signed-off-by: Dave Chinner Signed-off-by: Eric Sandeen --- libxfs/xfs_attr.c | 54 ++++++++++++++++++++++++++---------------- libxfs/xfs_attr_leaf.c | 3 ++- 2 files changed, 35 insertions(+), 22 deletions(-) diff --git a/libxfs/xfs_attr.c b/libxfs/xfs_attr.c index b0608f725..49c7ddb2f 100644 --- a/libxfs/xfs_attr.c +++ b/libxfs/xfs_attr.c @@ -357,6 +357,7 @@ xfs_attr_set_iter( struct xfs_inode *dp = args->dp; struct xfs_buf *bp = NULL; int forkoff, error = 0; + struct xfs_mount *mp = args->dp->i_mount; /* State machine switch */ switch (dac->dela_state) { @@ -479,16 +480,21 @@ xfs_attr_set_iter( * In a separate transaction, set the incomplete flag on the * "old" attr and clear the incomplete flag on the "new" attr. */ - error = xfs_attr3_leaf_flipflags(args); - if (error) - return error; - /* - * Commit the flag value change and start the next trans in - * series. - */ - dac->dela_state = XFS_DAS_FLIP_LFLAG; - trace_xfs_attr_set_iter_return(dac->dela_state, args->dp); - return -EAGAIN; + if (!xfs_has_larp(mp)) { + error = xfs_attr3_leaf_flipflags(args); + if (error) + return error; + /* + * Commit the flag value change and start the next trans + * in series. + */ + dac->dela_state = XFS_DAS_FLIP_LFLAG; + trace_xfs_attr_set_iter_return(dac->dela_state, + args->dp); + return -EAGAIN; + } + + fallthrough; case XFS_DAS_FLIP_LFLAG: /* * Dismantle the "old" attribute/value pair by removing a @@ -591,17 +597,21 @@ xfs_attr_set_iter( * In a separate transaction, set the incomplete flag on the * "old" attr and clear the incomplete flag on the "new" attr. */ - error = xfs_attr3_leaf_flipflags(args); - if (error) - goto out; - /* - * Commit the flag value change and start the next trans in - * series - */ - dac->dela_state = XFS_DAS_FLIP_NFLAG; - trace_xfs_attr_set_iter_return(dac->dela_state, args->dp); - return -EAGAIN; + if (!xfs_has_larp(mp)) { + error = xfs_attr3_leaf_flipflags(args); + if (error) + goto out; + /* + * Commit the flag value change and start the next trans + * in series + */ + dac->dela_state = XFS_DAS_FLIP_NFLAG; + trace_xfs_attr_set_iter_return(dac->dela_state, + args->dp); + return -EAGAIN; + } + fallthrough; case XFS_DAS_FLIP_NFLAG: /* * Dismantle the "old" attribute/value pair by removing a @@ -1272,6 +1282,7 @@ xfs_attr_node_addname_clear_incomplete( { struct xfs_da_args *args = dac->da_args; struct xfs_da_state *state = NULL; + struct xfs_mount *mp = args->dp->i_mount; int retval = 0; int error = 0; @@ -1279,7 +1290,8 @@ xfs_attr_node_addname_clear_incomplete( * Re-find the "old" attribute entry after any split ops. The INCOMPLETE * flag means that we will find the "old" attr, not the "new" one. */ - args->attr_filter |= XFS_ATTR_INCOMPLETE; + if (!xfs_has_larp(mp)) + args->attr_filter |= XFS_ATTR_INCOMPLETE; state = xfs_da_state_alloc(args); state->inleaf = 0; error = xfs_da3_node_lookup_int(state, &retval); diff --git a/libxfs/xfs_attr_leaf.c b/libxfs/xfs_attr_leaf.c index 31eddb543..45d1b0634 100644 --- a/libxfs/xfs_attr_leaf.c +++ b/libxfs/xfs_attr_leaf.c @@ -1484,7 +1484,8 @@ xfs_attr3_leaf_add_work( if (tmp) entry->flags |= XFS_ATTR_LOCAL; if (args->op_flags & XFS_DA_OP_RENAME) { - entry->flags |= XFS_ATTR_INCOMPLETE; + if (!xfs_has_larp(mp)) + entry->flags |= XFS_ATTR_INCOMPLETE; if ((args->blkno2 == args->blkno) && (args->index2 <= args->index)) { args->index2++; -- 2.47.3