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From: Allison Collins <allison.henderson@oracle.com>
To: linux-xfs@vger.kernel.org
Subject: [PATCH v1 06/19] xfsprogs: Factor out new helper functions xfs_attr_rmtval_set
Date: Fri,  9 Aug 2019 14:37:51 -0700	[thread overview]
Message-ID: <20190809213804.32628-7-allison.henderson@oracle.com> (raw)
In-Reply-To: <20190809213804.32628-1-allison.henderson@oracle.com>

Break xfs_attr_rmtval_set into two helper functions
xfs_attr_rmt_find_hole and xfs_attr_rmtval_set_value.
xfs_attr_rmtval_set rolls the transaction between the
helpers, but delayed operations cannot.  We will use
the helpers later when constructing new delayed
attribute routines.

Signed-off-by: Allison Collins <allison.henderson@oracle.com>
---
 libxfs/xfs_attr_remote.c | 73 ++++++++++++++++++++++++++++++++++++------------
 libxfs/xfs_attr_remote.h |  4 ++-
 2 files changed, 58 insertions(+), 19 deletions(-)

diff --git a/libxfs/xfs_attr_remote.c b/libxfs/xfs_attr_remote.c
index 7fe28a0..5452de4 100644
--- a/libxfs/xfs_attr_remote.c
+++ b/libxfs/xfs_attr_remote.c
@@ -24,6 +24,7 @@
 #include "xfs_trans_space.h"
 #include "xfs_trace.h"
 #include "xfs_cksum.h"
+#include "xfs_attr_remote.h"
 
 #define ATTR_RMTVALUE_MAPSIZE	1	/* # of map entries at once */
 
@@ -433,34 +434,18 @@ xfs_attr_rmtval_set(
 	struct xfs_da_args	*args)
 {
 	struct xfs_inode	*dp = args->dp;
-	struct xfs_mount	*mp = dp->i_mount;
 	struct xfs_bmbt_irec	map;
 	xfs_dablk_t		lblkno;
 	xfs_fileoff_t		lfileoff = 0;
-	uint8_t			*src = args->value;
 	int			blkcnt;
-	int			valuelen;
 	int			nmap;
 	int			error;
-	int			offset = 0;
-
-	trace_xfs_attr_rmtval_set(args);
 
-	/*
-	 * Find a "hole" in the attribute address space large enough for
-	 * us to drop the new attribute's value into. Because CRC enable
-	 * attributes have headers, we can't just do a straight byte to FSB
-	 * conversion and have to take the header space into account.
-	 */
-	blkcnt = xfs_attr3_rmt_blocks(mp, args->rmtvaluelen);
-	error = xfs_bmap_first_unused(args->trans, args->dp, blkcnt, &lfileoff,
-						   XFS_ATTR_FORK);
+	error = xfs_attr_rmt_find_hole(args, &blkcnt, &lfileoff);
 	if (error)
 		return error;
 
-	args->rmtblkno = lblkno = (xfs_dablk_t)lfileoff;
-	args->rmtblkcnt = blkcnt;
-
+	lblkno = (xfs_dablk_t)lfileoff;
 	/*
 	 * Roll through the "value", allocating blocks on disk as required.
 	 */
@@ -501,6 +486,58 @@ xfs_attr_rmtval_set(
 			return error;
 	}
 
+	error = xfs_attr_rmtval_set_value(args);
+	return error;
+}
+
+
+
+int
+xfs_attr_rmt_find_hole(
+	struct xfs_da_args	*args,
+	int			*blkcnt,
+	xfs_fileoff_t		*lfileoff)
+{
+	struct xfs_inode        *dp = args->dp;
+	struct xfs_mount	*mp = dp->i_mount;
+	int			error;
+
+	trace_xfs_attr_rmtval_set(args);
+
+	/*
+	 * Find a "hole" in the attribute address space large enough for
+	 * us to drop the new attribute's value into. Because CRC enable
+	 * attributes have headers, we can't just do a straight byte to FSB
+	 * conversion and have to take the header space into account.
+	 */
+	*blkcnt = xfs_attr3_rmt_blocks(mp, args->rmtvaluelen);
+	error = xfs_bmap_first_unused(args->trans, args->dp, *blkcnt, lfileoff,
+						   XFS_ATTR_FORK);
+	if (error)
+		return error;
+
+	args->rmtblkno = (xfs_dablk_t)*lfileoff;
+	args->rmtblkcnt = *blkcnt;
+
+	return 0;
+}
+
+int
+xfs_attr_rmtval_set_value(
+	struct xfs_da_args	*args)
+{
+	struct xfs_inode	*dp = args->dp;
+	struct xfs_mount	*mp = dp->i_mount;
+	struct xfs_bmbt_irec	map;
+	xfs_dablk_t		lblkno;
+	uint8_t			*src = args->value;
+	int			blkcnt;
+	int			valuelen;
+	int			nmap;
+	int			error;
+	int			offset = 0;
+
+
 	/*
 	 * Roll through the "value", copying the attribute value to the
 	 * already-allocated blocks.  Blocks are written synchronously
diff --git a/libxfs/xfs_attr_remote.h b/libxfs/xfs_attr_remote.h
index 9d20b66..2a73cd9 100644
--- a/libxfs/xfs_attr_remote.h
+++ b/libxfs/xfs_attr_remote.h
@@ -11,5 +11,7 @@ int xfs_attr3_rmt_blocks(struct xfs_mount *mp, int attrlen);
 int xfs_attr_rmtval_get(struct xfs_da_args *args);
 int xfs_attr_rmtval_set(struct xfs_da_args *args);
 int xfs_attr_rmtval_remove(struct xfs_da_args *args);
-
+int xfs_attr_rmtval_set_value(struct xfs_da_args *args);
+int xfs_attr_rmt_find_hole(struct xfs_da_args *args, int *blkcnt,
+			   xfs_fileoff_t *lfileoff);
 #endif /* __XFS_ATTR_REMOTE_H__ */
-- 
2.7.4

  parent reply	other threads:[~2019-08-09 21:38 UTC|newest]

Thread overview: 24+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2019-08-09 21:37 [PATCH v1 00/19] Delayed Attributes Allison Collins
2019-08-09 21:37 ` [PATCH v1 01/19] xfsprogs: Remove all strlen in all xfs_attr_* functions for attr names Allison Collins
2019-08-09 21:37 ` [PATCH v1 02/19] xfsprog: Replace attribute parameters with struct xfs_name Allison Collins
2019-08-09 21:37 ` [PATCH v1 03/19] xfsprogs: Set up infastructure for deferred attribute operations Allison Collins
2019-08-09 21:37 ` [PATCH v1 04/19] xfsprogs: Add xfs_attr_set_deferred and xfs_attr_remove_deferred Allison Collins
2019-08-09 21:37 ` [PATCH v1 05/19] xfsprogs: Add xfs_has_attr and subroutines Allison Collins
2019-08-09 21:37 ` Allison Collins [this message]
2019-08-09 21:37 ` [PATCH v1 07/19] xfsprogs: Factor up trans handling in xfs_attr3_leaf_flipflags Allison Collins
2019-08-09 21:37 ` [PATCH v1 08/19] xfsprogs: Factor out xfs_attr_leaf_addname helper Allison Collins
2019-08-09 21:37 ` [PATCH v1 09/19] xfsprogs: Factor up commit from xfs_attr_try_sf_addname Allison Collins
2019-08-09 21:37 ` [PATCH v1 10/19] xfsprogs: Factor up trans roll from xfs_attr3_leaf_setflag Allison Collins
2019-08-09 21:37 ` [PATCH v1 11/19] xfsprogs: Add xfs_attr3_leaf helper functions Allison Collins
2019-08-09 21:37 ` [PATCH v1 12/19] xfsprogs: Factor out xfs_attr_rmtval_remove_value Allison Collins
2019-08-09 21:37 ` [PATCH v1 13/19] xfsprogs: Factor up trans roll in xfs_attr3_leaf_clearflag Allison Collins
2019-08-09 21:37 ` [PATCH v1 14/19] xfsprogs: Add delay context to xfs_da_args Allison Collins
2019-08-09 21:38 ` [PATCH v1 15/19] xfsprogs: Add delayed attribute routines Allison Collins
2019-08-09 21:38 ` [PATCH v1 16/19] xfsprogs: Roll delayed attr operations by returning EAGAIN Allison Collins
2019-08-09 21:38 ` [PATCH v1 17/19] xfsprogs: Enable delayed attributes Allison Collins
2019-08-09 21:38 ` [PATCH v1 18/19] xfsprogs: Add delayed attributes error tag Allison Collins
2019-08-12 16:44   ` Darrick J. Wong
2019-08-12 22:39     ` Allison Collins
2019-08-09 21:38 ` [PATCH v1 19/19] xfsprogs: Add log item printing for ATTRI and ATTRD Allison Collins
2019-08-12 16:46   ` Darrick J. Wong
2019-08-12 23:34     ` Allison Collins

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