All of lore.kernel.org
 help / color / mirror / Atom feed
From: Dave Chinner <david@fromorbit.com>
To: xfs@oss.sgi.com
Subject: [PATCH 25/50] xfs: split out buf log item format definitions
Date: Wed, 19 Jun 2013 15:35:48 +1000	[thread overview]
Message-ID: <1371620173-712-26-git-send-email-david@fromorbit.com> (raw)
In-Reply-To: <1371620173-712-1-git-send-email-david@fromorbit.com>

From: Dave Chinner <dchinner@redhat.com>

Signed-off-by: Dave Chinner <dchinner@redhat.com>
---
 include/Makefile              |    2 +-
 include/libxfs.h              |    8 +-
 include/libxlog.h             |    2 +-
 include/xfs_buf_item.h        |  174 -----------------------------------------
 include/xfs_buf_item_format.h |  111 ++++++++++++++++++++++++++
 5 files changed, 120 insertions(+), 177 deletions(-)
 delete mode 100644 include/xfs_buf_item.h
 create mode 100644 include/xfs_buf_item_format.h

diff --git a/include/Makefile b/include/Makefile
index 6ff2749..91ee0e3 100644
--- a/include/Makefile
+++ b/include/Makefile
@@ -23,7 +23,7 @@ QAHFILES = libxfs.h libxlog.h \
 	swab.h \
 	xfs_ag.h xfs_alloc.h xfs_alloc_btree.h xfs_arch.h xfs_attr_leaf.h \
 	xfs_attr_sf.h xfs_bit.h xfs_bmap.h xfs_bmap_btree.h xfs_btree.h \
-	xfs_btree_trace.h xfs_buf_item.h xfs_cksum.h xfs_da_btree.h \
+	xfs_btree_trace.h xfs_buf_item_format.h xfs_cksum.h xfs_da_btree.h \
 	xfs_dinode.h xfs_dir2.h xfs_dir2_format.h \
 	xfs_extfree_item.h xfs_ialloc.h xfs_ialloc_btree.h \
 	xfs_icreate_item.h xfs_inode.h xfs_inode_item_format.h xfs_inum.h \
diff --git a/include/libxfs.h b/include/libxfs.h
index 0c0291b..7be9b1f 100644
--- a/include/libxfs.h
+++ b/include/libxfs.h
@@ -47,7 +47,7 @@
 #include <xfs/xfs_attr_sf.h>
 #include <xfs/xfs_dinode.h>
 #include <xfs/xfs_inode.h>
-#include <xfs/xfs_buf_item.h>
+#include <xfs/xfs_buf_item_format.h>
 #include <xfs/xfs_inode_item_format.h>
 #include <xfs/xfs_alloc.h>
 #include <xfs/xfs_btree.h>
@@ -444,6 +444,12 @@ typedef struct xfs_buf_log_item {
 	xfs_buf_log_format_t	bli_format;	/* in-log header */
 } xfs_buf_log_item_t;
 
+/* buf log item flags */
+#define	XFS_BLI_HOLD		0x01
+#define	XFS_BLI_DIRTY		0x02
+#define	XFS_BLI_STALE		0x04
+#define	XFS_BLI_INODE_ALLOC_BUF	0x10
+
 typedef struct xfs_dq_logitem {
 	xfs_log_item_t		qli_item;	/* common portion */
 	struct xfs_dquot	*qli_dquot;	/* dquot ptr */
diff --git a/include/libxlog.h b/include/libxlog.h
index e003b30..9227a3a 100644
--- a/include/libxlog.h
+++ b/include/libxlog.h
@@ -48,7 +48,7 @@ struct xlog {
 };
 
 #include <xfs/xfs_log_recover.h>
-#include <xfs/xfs_buf_item.h>
+#include <xfs/xfs_buf_item_format.h>
 #include <xfs/xfs_inode_item_format.h>
 #include <xfs/xfs_extfree_item.h>
 #include <xfs/xfs_icreate_item.h>
diff --git a/include/xfs_buf_item.h b/include/xfs_buf_item.h
deleted file mode 100644
index 0f1c247..0000000
--- a/include/xfs_buf_item.h
+++ /dev/null
@@ -1,174 +0,0 @@
-/*
- * Copyright (c) 2000-2001,2005 Silicon Graphics, Inc.
- * All Rights Reserved.
- *
- * This program is free software; you can redistribute it and/or
- * modify it under the terms of the GNU General Public License as
- * published by the Free Software Foundation.
- *
- * This program is distributed in the hope that it would be useful,
- * but WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
- * GNU General Public License for more details.
- *
- * You should have received a copy of the GNU General Public License
- * along with this program; if not, write the Free Software Foundation,
- * Inc.,  51 Franklin St, Fifth Floor, Boston, MA  02110-1301  USA
- */
-#ifndef	__XFS_BUF_ITEM_H__
-#define	__XFS_BUF_ITEM_H__
-
-extern kmem_zone_t	*xfs_buf_item_zone;
-
-/*
- * This flag indicates that the buffer contains on disk inodes
- * and requires special recovery handling.
- */
-#define	XFS_BLF_INODE_BUF	(1<<0)
-/*
- * This flag indicates that the buffer should not be replayed
- * during recovery because its blocks are being freed.
- */
-#define	XFS_BLF_CANCEL		(1<<1)
-
-/*
- * This flag indicates that the buffer contains on disk
- * user or group dquots and may require special recovery handling.
- */
-#define	XFS_BLF_UDQUOT_BUF	(1<<2)
-#define XFS_BLF_PDQUOT_BUF	(1<<3)
-#define	XFS_BLF_GDQUOT_BUF	(1<<4)
-
-#define	XFS_BLF_CHUNK		128
-#define	XFS_BLF_SHIFT		7
-#define	BIT_TO_WORD_SHIFT	5
-#define	NBWORD			(NBBY * sizeof(unsigned int))
-
-/*
- * This is the structure used to lay out a buf log item in the
- * log.  The data map describes which 128 byte chunks of the buffer
- * have been logged.
- */
-#define XFS_BLF_DATAMAP_SIZE	((XFS_MAX_BLOCKSIZE / XFS_BLF_CHUNK) / NBWORD)
-
-typedef struct xfs_buf_log_format {
-	unsigned short	blf_type;	/* buf log item type indicator */
-	unsigned short	blf_size;	/* size of this item */
-	ushort		blf_flags;	/* misc state */
-	ushort		blf_len;	/* number of blocks in this buf */
-	__int64_t	blf_blkno;	/* starting blkno of this buf */
-	unsigned int	blf_map_size;	/* used size of data bitmap in words */
-	unsigned int	blf_data_map[XFS_BLF_DATAMAP_SIZE]; /* dirty bitmap */
-} xfs_buf_log_format_t;
-
-/*
- * All buffers now need to tell recovery where the magic number
- * is so that it can verify and calculate the CRCs on the buffer correctly
- * once the changes have been replayed into the buffer.
- *
- * The type value is held in the upper 5 bits of the blf_flags field, which is
- * an unsigned 16 bit field. Hence we need to shift it 11 bits up and down.
- */
-#define XFS_BLFT_BITS	5
-#define XFS_BLFT_SHIFT	11
-#define XFS_BLFT_MASK	(((1 << XFS_BLFT_BITS) - 1) << XFS_BLFT_SHIFT)
-
-enum xfs_blft {
-	XFS_BLFT_UNKNOWN_BUF = 0,
-	XFS_BLFT_UDQUOT_BUF,
-	XFS_BLFT_PDQUOT_BUF,
-	XFS_BLFT_GDQUOT_BUF,
-	XFS_BLFT_BTREE_BUF,
-	XFS_BLFT_AGF_BUF,
-	XFS_BLFT_AGFL_BUF,
-	XFS_BLFT_AGI_BUF,
-	XFS_BLFT_DINO_BUF,
-	XFS_BLFT_SYMLINK_BUF,
-	XFS_BLFT_DIR_BLOCK_BUF,
-	XFS_BLFT_DIR_DATA_BUF,
-	XFS_BLFT_DIR_FREE_BUF,
-	XFS_BLFT_DIR_LEAF1_BUF,
-	XFS_BLFT_DIR_LEAFN_BUF,
-	XFS_BLFT_DA_NODE_BUF,
-	XFS_BLFT_ATTR_LEAF_BUF,
-	XFS_BLFT_ATTR_RMT_BUF,
-	XFS_BLFT_SB_BUF,
-	XFS_BLFT_MAX_BUF = (1 << XFS_BLFT_BITS),
-};
-
-static inline void
-xfs_blft_to_flags(struct xfs_buf_log_format *blf, enum xfs_blft type)
-{
-	ASSERT(type > XFS_BLFT_UNKNOWN_BUF && type < XFS_BLFT_MAX_BUF);
-	blf->blf_flags &= ~XFS_BLFT_MASK;
-	blf->blf_flags |= ((type << XFS_BLFT_SHIFT) & XFS_BLFT_MASK);
-}
-
-static inline __uint16_t
-xfs_blft_from_flags(struct xfs_buf_log_format *blf)
-{
-	return (blf->blf_flags & XFS_BLFT_MASK) >> XFS_BLFT_SHIFT;
-}
-
-/*
- * buf log item flags
- */
-#define	XFS_BLI_HOLD		0x01
-#define	XFS_BLI_DIRTY		0x02
-#define	XFS_BLI_STALE		0x04
-#define	XFS_BLI_LOGGED		0x08
-#define	XFS_BLI_INODE_ALLOC_BUF	0x10
-#define XFS_BLI_STALE_INODE	0x20
-#define	XFS_BLI_INODE_BUF	0x40
-#define	XFS_BLI_ORDERED		0x80
-
-#define XFS_BLI_FLAGS \
-	{ XFS_BLI_HOLD,		"HOLD" }, \
-	{ XFS_BLI_DIRTY,	"DIRTY" }, \
-	{ XFS_BLI_STALE,	"STALE" }, \
-	{ XFS_BLI_LOGGED,	"LOGGED" }, \
-	{ XFS_BLI_INODE_ALLOC_BUF, "INODE_ALLOC" }, \
-	{ XFS_BLI_STALE_INODE,	"STALE_INODE" }, \
-	{ XFS_BLI_INODE_BUF,	"INODE_BUF" }, \
-	{ XFS_BLI_ORDERED,	"ORDERED" }
-
-
-#ifdef __KERNEL__
-
-struct xfs_buf;
-struct xfs_mount;
-struct xfs_buf_log_item;
-
-/*
- * This is the in core log item structure used to track information
- * needed to log buffers.  It tracks how many times the lock has been
- * locked, and which 128 byte chunks of the buffer are dirty.
- */
-typedef struct xfs_buf_log_item {
-	xfs_log_item_t		bli_item;	/* common item structure */
-	struct xfs_buf		*bli_buf;	/* real buffer pointer */
-	unsigned int		bli_flags;	/* misc flags */
-	unsigned int		bli_recur;	/* lock recursion count */
-	atomic_t		bli_refcount;	/* cnt of tp refs */
-	int			bli_format_count;	/* count of headers */
-	struct xfs_buf_log_format *bli_formats;	/* array of in-log header ptrs */
-	struct xfs_buf_log_format __bli_format;	/* embedded in-log header */
-} xfs_buf_log_item_t;
-
-void	xfs_buf_item_init(struct xfs_buf *, struct xfs_mount *);
-void	xfs_buf_item_relse(struct xfs_buf *);
-void	xfs_buf_item_log(xfs_buf_log_item_t *, uint, uint);
-uint	xfs_buf_item_dirty(xfs_buf_log_item_t *);
-void	xfs_buf_attach_iodone(struct xfs_buf *,
-			      void(*)(struct xfs_buf *, xfs_log_item_t *),
-			      xfs_log_item_t *);
-void	xfs_buf_iodone_callbacks(struct xfs_buf *);
-void	xfs_buf_iodone(struct xfs_buf *, struct xfs_log_item *);
-
-void	xfs_trans_buf_set_type(struct xfs_trans *, struct xfs_buf *,
-			       enum xfs_blft);
-void	xfs_trans_buf_copy_type(struct xfs_buf *dst_bp, struct xfs_buf *src_bp);
-
-#endif	/* __KERNEL__ */
-
-#endif	/* __XFS_BUF_ITEM_H__ */
diff --git a/include/xfs_buf_item_format.h b/include/xfs_buf_item_format.h
new file mode 100644
index 0000000..e2e9474
--- /dev/null
+++ b/include/xfs_buf_item_format.h
@@ -0,0 +1,111 @@
+/*
+ * Copyright (c) 2000-2001,2005 Silicon Graphics, Inc.
+ * All Rights Reserved.
+ *
+ * This program is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU General Public License as
+ * published by the Free Software Foundation.
+ *
+ * This program is distributed in the hope that it would be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program; if not, write the Free Software Foundation,
+ * Inc.,  51 Franklin St, Fifth Floor, Boston, MA  02110-1301  USA
+ */
+#ifndef	__XFS_BUF_ITEM_FORMAT_H__
+#define	__XFS_BUF_ITEM_FORMAT_H__
+
+/*
+ * This flag indicates that the buffer contains on disk inodes
+ * and requires special recovery handling.
+ */
+#define	XFS_BLF_INODE_BUF	(1<<0)
+/*
+ * This flag indicates that the buffer should not be replayed
+ * during recovery because its blocks are being freed.
+ */
+#define	XFS_BLF_CANCEL		(1<<1)
+
+/*
+ * This flag indicates that the buffer contains on disk
+ * user or group dquots and may require special recovery handling.
+ */
+#define	XFS_BLF_UDQUOT_BUF	(1<<2)
+#define XFS_BLF_PDQUOT_BUF	(1<<3)
+#define	XFS_BLF_GDQUOT_BUF	(1<<4)
+
+#define	XFS_BLF_CHUNK		128
+#define	XFS_BLF_SHIFT		7
+#define	BIT_TO_WORD_SHIFT	5
+#define	NBWORD			(NBBY * sizeof(unsigned int))
+
+/*
+ * This is the structure used to lay out a buf log item in the
+ * log.  The data map describes which 128 byte chunks of the buffer
+ * have been logged.
+ */
+#define XFS_BLF_DATAMAP_SIZE	((XFS_MAX_BLOCKSIZE / XFS_BLF_CHUNK) / NBWORD)
+
+typedef struct xfs_buf_log_format {
+	unsigned short	blf_type;	/* buf log item type indicator */
+	unsigned short	blf_size;	/* size of this item */
+	ushort		blf_flags;	/* misc state */
+	ushort		blf_len;	/* number of blocks in this buf */
+	__int64_t	blf_blkno;	/* starting blkno of this buf */
+	unsigned int	blf_map_size;	/* used size of data bitmap in words */
+	unsigned int	blf_data_map[XFS_BLF_DATAMAP_SIZE]; /* dirty bitmap */
+} xfs_buf_log_format_t;
+
+/*
+ * All buffers now need to tell recovery where the magic number
+ * is so that it can verify and calculate the CRCs on the buffer correctly
+ * once the changes have been replayed into the buffer.
+ *
+ * The type value is held in the upper 5 bits of the blf_flags field, which is
+ * an unsigned 16 bit field. Hence we need to shift it 11 bits up and down.
+ */
+#define XFS_BLFT_BITS	5
+#define XFS_BLFT_SHIFT	11
+#define XFS_BLFT_MASK	(((1 << XFS_BLFT_BITS) - 1) << XFS_BLFT_SHIFT)
+
+enum xfs_blft {
+	XFS_BLFT_UNKNOWN_BUF = 0,
+	XFS_BLFT_UDQUOT_BUF,
+	XFS_BLFT_PDQUOT_BUF,
+	XFS_BLFT_GDQUOT_BUF,
+	XFS_BLFT_BTREE_BUF,
+	XFS_BLFT_AGF_BUF,
+	XFS_BLFT_AGFL_BUF,
+	XFS_BLFT_AGI_BUF,
+	XFS_BLFT_DINO_BUF,
+	XFS_BLFT_SYMLINK_BUF,
+	XFS_BLFT_DIR_BLOCK_BUF,
+	XFS_BLFT_DIR_DATA_BUF,
+	XFS_BLFT_DIR_FREE_BUF,
+	XFS_BLFT_DIR_LEAF1_BUF,
+	XFS_BLFT_DIR_LEAFN_BUF,
+	XFS_BLFT_DA_NODE_BUF,
+	XFS_BLFT_ATTR_LEAF_BUF,
+	XFS_BLFT_ATTR_RMT_BUF,
+	XFS_BLFT_SB_BUF,
+	XFS_BLFT_MAX_BUF = (1 << XFS_BLFT_BITS),
+};
+
+static inline void
+xfs_blft_to_flags(struct xfs_buf_log_format *blf, enum xfs_blft type)
+{
+	ASSERT(type > XFS_BLFT_UNKNOWN_BUF && type < XFS_BLFT_MAX_BUF);
+	blf->blf_flags &= ~XFS_BLFT_MASK;
+	blf->blf_flags |= ((type << XFS_BLFT_SHIFT) & XFS_BLFT_MASK);
+}
+
+static inline __uint16_t
+xfs_blft_from_flags(struct xfs_buf_log_format *blf)
+{
+	return (blf->blf_flags & XFS_BLFT_MASK) >> XFS_BLFT_SHIFT;
+}
+
+#endif	/* __XFS_BUF_ITEM_FORMAT_H__ */
-- 
1.7.10.4

_______________________________________________
xfs mailing list
xfs@oss.sgi.com
http://oss.sgi.com/mailman/listinfo/xfs

  parent reply	other threads:[~2013-06-19  5:37 UTC|newest]

Thread overview: 51+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2013-06-19  5:35 [PATCH 00/50] xfsprogs: patch queue for crc-dev Dave Chinner
2013-06-19  5:35 ` [PATCH 01/50] xfsprogs: introduce xfs_icreate.h Dave Chinner
2013-06-19  5:35 ` [PATCH 02/50] xfsprogs: port inode create transaction changes Dave Chinner
2013-06-19  5:35 ` [PATCH 03/50] xfsprogs: teach logprint about icreate transaction Dave Chinner
2013-06-19  5:35 ` [PATCH 04/50] libxfs: switch over to xfs_sb.c and remove xfs_mount.c Dave Chinner
2013-06-19  5:35 ` [PATCH 05/50] libxfs: move the transaction reservation structures Dave Chinner
2013-06-19  5:35 ` [PATCH 06/50] xfsprogs: remove xfs_mount.h Dave Chinner
2013-06-19  5:35 ` [PATCH 07/50] libxfs: update xfs_inode.h to match new kernel version Dave Chinner
2013-06-19  5:35 ` [PATCH 08/50] xfs: remove local fork format handling from xfs_bmapi_write() Dave Chinner
2013-06-19  5:35 ` [PATCH 09/50] libxfs: local to remote format support of remote symlinks Dave Chinner
2013-06-19  5:35 ` [PATCH 10/50] xfsprogs: sync minor kernel header differences Dave Chinner
2013-06-19  5:35 ` [PATCH 11/50] libxfs: introduce xfs_trans_resv.c Dave Chinner
2013-06-19  5:35 ` [PATCH 12/50] libxfs: fix directory/attribute format issues Dave Chinner
2013-06-19  5:35 ` [PATCH 13/50] libxfs: ensure btree root split sets blkno correctly Dave Chinner
2013-06-19  5:35 ` [PATCH 14/50] libxfs: move transaction code to trans.c Dave Chinner
2013-06-19  5:35 ` [PATCH 15/50] libxfs: fix byte swapping on constants Dave Chinner
2013-06-19  5:35 ` [PATCH 16/50] libxfs: sync xfs_da_btree.c Dave Chinner
2013-06-19  5:35 ` [PATCH 17/50] libxfs: update xfs_alloc to current kernel version Dave Chinner
2013-06-19  5:35 ` [PATCH 18/50] libxfs: sync attr code with kernel Dave Chinner
2013-06-19  5:35 ` [PATCH 19/50] libxfs: sync dir2 kernel differences Dave Chinner
2013-06-19  5:35 ` [PATCH 20/50] libxfs: sync xfs_ialloc.c to the kernel code Dave Chinner
2013-06-19  5:35 ` [PATCH 21/50] xfsprogs: define min/max once and use them everywhere Dave Chinner
2013-06-19  5:35 ` [PATCH 22/50] libxfs: fix compile warnings Dave Chinner
2013-06-19  5:35 ` [PATCH 23/50] xfsprogs: fix make deb Dave Chinner
2013-06-19  5:35 ` [PATCH 24/50] xfs: split out inode log item format definition Dave Chinner
2013-06-19  5:35 ` Dave Chinner [this message]
2013-06-19  5:35 ` [PATCH 26/50] xfs: move inode fork definitions to a new header file Dave Chinner
2013-06-19  5:35 ` [PATCH 27/50] xfs: move unrealted definitions out of xfs_inode.h Dave Chinner
2013-06-19  5:35 ` [PATCH 28/50] xfs: introduce xfs_inode_buf.c for inode buffer operations Dave Chinner
2013-06-19  5:35 ` [PATCH 29/50] xfs: move swap extent code to xfs_extent_ops Dave Chinner
2013-06-19  5:35 ` [PATCH 30/50] xfs: split out inode log item format definition Dave Chinner
2013-06-19  5:35 ` [PATCH 31/50] xfs: separate dquot on disk format definitions out of xfs_quota.h Dave Chinner
2013-06-19  5:35 ` [PATCH 32/50] xfs: separate icreate log format definitions from xfs_icreate_item.h Dave Chinner
2013-06-19  5:35 ` [PATCH 33/50] xfs: don't special case shared superblock mounts Dave Chinner
2013-06-19  5:35 ` [PATCH 34/50] xfs: kill __KERNEL__ check for debug code in allocation code Dave Chinner
2013-06-19  5:35 ` [PATCH 35/50] xfs: split out on-disk transaction definitions Dave Chinner
2013-06-19  5:35 ` [PATCH 36/50] xfs: remove __KERNEL__ from debug code Dave Chinner
2013-06-19  5:36 ` [PATCH 37/50] xfs: remove __KERNEL__ check from xfs_dir2_leaf.c Dave Chinner
2013-06-19  5:36 ` [PATCH 38/50] xfs: split out the remote symlink handling Dave Chinner
2013-06-19  5:36 ` [PATCH 39/50] xfs: separate out log format definitions Dave Chinner
2013-06-19  5:36 ` [PATCH 40/50] xfs: move kernel specific type definitions to xfs.h Dave Chinner
2013-06-19  5:36 ` [PATCH 41/50] xfs: make struct xfs_perag kernel only Dave Chinner
2013-06-19  5:36 ` [PATCH 42/50] xfs: create xfs_bmap_util.[ch] Dave Chinner
2013-06-19  5:36 ` [PATCH 43/50] xfs: introduce xfs_quota_defs.h Dave Chinner
2013-06-19  5:36 ` [PATCH 44/50] xfs: introduce xfs_rtalloc_defs.h Dave Chinner
2013-06-19  5:36 ` [PATCH 45/50] xfs: Introduce a new structure to hold transaction reservation items Dave Chinner
2013-06-19  5:36 ` [PATCH 46/50] xfs: Introduce tr_fsyncts to m_reservation Dave Chinner
2013-06-19  5:36 ` [PATCH 47/50] xfs: Make writeid transaction use tr_writeid Dave Chinner
2013-06-19  5:36 ` [PATCH 48/50] xfs: refactor xfs_trans_reserve() interface Dave Chinner
2013-06-19  5:36 ` [PATCH 49/50] xfs: Get rid of all XFS_XXX_LOG_RES() macro Dave Chinner
2013-06-19  5:36 ` [PATCH 50/50] xfs: Add xfs_log_rlimit.c Dave Chinner

Reply instructions:

You may reply publicly to this message via plain-text email
using any one of the following methods:

* Save the following mbox file, import it into your mail client,
  and reply-to-all from there: mbox

  Avoid top-posting and favor interleaved quoting:
  https://en.wikipedia.org/wiki/Posting_style#Interleaved_style

* Reply using the --to, --cc, and --in-reply-to
  switches of git-send-email(1):

  git send-email \
    --in-reply-to=1371620173-712-26-git-send-email-david@fromorbit.com \
    --to=david@fromorbit.com \
    --cc=xfs@oss.sgi.com \
    /path/to/YOUR_REPLY

  https://kernel.org/pub/software/scm/git/docs/git-send-email.html

* If your mail client supports setting the In-Reply-To header
  via mailto: links, try the mailto: link
Be sure your reply has a Subject: header at the top and a blank line before the message body.
This is an external index of several public inboxes,
see mirroring instructions on how to clone and mirror
all data and code used by this external index.