[PATCH 02/29] xfs: rename XBF_TRYLOCK to XBF_NOWAIT

[Hao Xu]

From: Hao Xu <howeyxu@xxxxxxxxxxx>

XBF_TRYLOCK means we need lock but don't block on it, we can use it to
stand for not waiting for memory allcation. Rename XBF_TRYLOCK to
XBF_NOWAIT, which is more generic.

Signed-off-by: Hao Xu <howeyxu@xxxxxxxxxxx>
---
 fs/xfs/libxfs/xfs_alloc.c       | 2 +-
 fs/xfs/libxfs/xfs_attr_remote.c | 2 +-
 fs/xfs/libxfs/xfs_btree.c       | 2 +-
 fs/xfs/scrub/repair.c           | 2 +-
 fs/xfs/xfs_buf.c                | 6 +++---
 fs/xfs/xfs_buf.h                | 4 ++--
 fs/xfs/xfs_dquot.c              | 2 +-
 7 files changed, 10 insertions(+), 10 deletions(-)

diff --git a/fs/xfs/libxfs/xfs_alloc.c b/fs/xfs/libxfs/xfs_alloc.c
index 3069194527dd..a75b9298faa8 100644
--- a/fs/xfs/libxfs/xfs_alloc.c
+++ b/fs/xfs/libxfs/xfs_alloc.c
@@ -3183,7 +3183,7 @@ xfs_alloc_read_agf(
 	ASSERT((flags & (XFS_ALLOC_FLAG_FREEING | XFS_ALLOC_FLAG_TRYLOCK)) !=
 			(XFS_ALLOC_FLAG_FREEING | XFS_ALLOC_FLAG_TRYLOCK));
 	error = xfs_read_agf(pag, tp,
-			(flags & XFS_ALLOC_FLAG_TRYLOCK) ? XBF_TRYLOCK : 0,
+			(flags & XFS_ALLOC_FLAG_TRYLOCK) ? XBF_NOWAIT : 0,
 			&agfbp);
 	if (error)
 		return error;
diff --git a/fs/xfs/libxfs/xfs_attr_remote.c b/fs/xfs/libxfs/xfs_attr_remote.c
index d440393b40eb..2ccb0867824c 100644
--- a/fs/xfs/libxfs/xfs_attr_remote.c
+++ b/fs/xfs/libxfs/xfs_attr_remote.c
@@ -661,7 +661,7 @@ xfs_attr_rmtval_invalidate(
 			return error;
 		if (XFS_IS_CORRUPT(args->dp->i_mount, nmap != 1))
 			return -EFSCORRUPTED;
-		error = xfs_attr_rmtval_stale(args->dp, &map, XBF_TRYLOCK);
+		error = xfs_attr_rmtval_stale(args->dp, &map, XBF_NOWAIT);
 		if (error)
 			return error;
 
diff --git a/fs/xfs/libxfs/xfs_btree.c b/fs/xfs/libxfs/xfs_btree.c
index 6a6503ab0cd7..77c4f1d83475 100644
--- a/fs/xfs/libxfs/xfs_btree.c
+++ b/fs/xfs/libxfs/xfs_btree.c
@@ -1343,7 +1343,7 @@ xfs_btree_read_buf_block(
 	int			error;
 
 	/* need to sort out how callers deal with failures first */
-	ASSERT(!(flags & XBF_TRYLOCK));
+	ASSERT(!(flags & XBF_NOWAIT));
 
 	error = xfs_btree_ptr_to_daddr(cur, ptr, &d);
 	if (error)
diff --git a/fs/xfs/scrub/repair.c b/fs/xfs/scrub/repair.c
index ac6d8803e660..9312cf3b20e2 100644
--- a/fs/xfs/scrub/repair.c
+++ b/fs/xfs/scrub/repair.c
@@ -460,7 +460,7 @@ xrep_invalidate_block(
 
 	error = xfs_buf_incore(sc->mp->m_ddev_targp,
 			XFS_FSB_TO_DADDR(sc->mp, fsbno),
-			XFS_FSB_TO_BB(sc->mp, 1), XBF_TRYLOCK, &bp);
+			XFS_FSB_TO_BB(sc->mp, 1), XBF_NOWAIT, &bp);
 	if (error)
 		return 0;
 
diff --git a/fs/xfs/xfs_buf.c b/fs/xfs/xfs_buf.c
index 15d1e5a7c2d3..9f84bc3b802c 100644
--- a/fs/xfs/xfs_buf.c
+++ b/fs/xfs/xfs_buf.c
@@ -228,7 +228,7 @@ _xfs_buf_alloc(
 	 * We don't want certain flags to appear in b_flags unless they are
 	 * specifically set by later operations on the buffer.
 	 */
-	flags &= ~(XBF_UNMAPPED | XBF_TRYLOCK | XBF_ASYNC | XBF_READ_AHEAD);
+	flags &= ~(XBF_UNMAPPED | XBF_NOWAIT | XBF_ASYNC | XBF_READ_AHEAD);
 
 	atomic_set(&bp->b_hold, 1);
 	atomic_set(&bp->b_lru_ref, 1);
@@ -543,7 +543,7 @@ xfs_buf_find_lock(
 	struct xfs_buf          *bp,
 	xfs_buf_flags_t		flags)
 {
-	if (flags & XBF_TRYLOCK) {
+	if (flags & XBF_NOWAIT) {
 		if (!xfs_buf_trylock(bp)) {
 			XFS_STATS_INC(bp->b_mount, xb_busy_locked);
 			return -EAGAIN;
@@ -886,7 +886,7 @@ xfs_buf_readahead_map(
 	struct xfs_buf		*bp;
 
 	xfs_buf_read_map(target, map, nmaps,
-		     XBF_TRYLOCK | XBF_ASYNC | XBF_READ_AHEAD, &bp, ops,
+		     XBF_NOWAIT | XBF_ASYNC | XBF_READ_AHEAD, &bp, ops,
 		     __this_address);
 }
 
diff --git a/fs/xfs/xfs_buf.h b/fs/xfs/xfs_buf.h
index 549c60942208..8cd307626939 100644
--- a/fs/xfs/xfs_buf.h
+++ b/fs/xfs/xfs_buf.h
@@ -45,7 +45,7 @@ struct xfs_buf;
 
 /* flags used only as arguments to access routines */
 #define XBF_INCORE	 (1u << 29)/* lookup only, return if found in cache */
-#define XBF_TRYLOCK	 (1u << 30)/* lock requested, but do not wait */
+#define XBF_NOWAIT	 (1u << 30)/* mem/lock requested, but do not wait */
 #define XBF_UNMAPPED	 (1u << 31)/* do not map the buffer */
 
 
@@ -68,7 +68,7 @@ typedef unsigned int xfs_buf_flags_t;
 	{ _XBF_DELWRI_Q,	"DELWRI_Q" }, \
 	/* The following interface flags should never be set */ \
 	{ XBF_INCORE,		"INCORE" }, \
-	{ XBF_TRYLOCK,		"TRYLOCK" }, \
+	{ XBF_NOWAIT,		"NOWAIT" }, \
 	{ XBF_UNMAPPED,		"UNMAPPED" }
 
 /*
diff --git a/fs/xfs/xfs_dquot.c b/fs/xfs/xfs_dquot.c
index 7f071757f278..5bc01ed4b2d7 100644
--- a/fs/xfs/xfs_dquot.c
+++ b/fs/xfs/xfs_dquot.c
@@ -1233,7 +1233,7 @@ xfs_qm_dqflush(
 	 * Get the buffer containing the on-disk dquot
 	 */
 	error = xfs_trans_read_buf(mp, NULL, mp->m_ddev_targp, dqp->q_blkno,
-				   mp->m_quotainfo->qi_dqchunklen, XBF_TRYLOCK,
+				   mp->m_quotainfo->qi_dqchunklen, XBF_NOWAIT,
 				   &bp, &xfs_dquot_buf_ops);
 	if (error == -EAGAIN)
 		goto out_unlock;
-- 
2.25.1