From: Dave Chinner <david@fromorbit.com>
To: xfs@oss.sgi.com
Subject: [PATCH 33/48] xfs_db: factor some common dir2 field parsing code.
Date: Fri, 7 Jun 2013 10:25:56 +1000 [thread overview]
Message-ID: <1370564771-4929-34-git-send-email-david@fromorbit.com> (raw)
In-Reply-To: <1370564771-4929-1-git-send-email-david@fromorbit.com>
From: Dave Chinner <dchinner@redhat.com>
Why duplicate it?
Signed-off-by: Dave Chinner <dchinner@redhat.com>
---
db/dir2.c | 172 ++++++++++++++++++++++++++++++-------------------------------
1 file changed, 84 insertions(+), 88 deletions(-)
diff --git a/db/dir2.c b/db/dir2.c
index 90378e6..594d9d2 100644
--- a/db/dir2.c
+++ b/db/dir2.c
@@ -189,6 +189,72 @@ const field_t da_node_hdr_flds[] = {
{ NULL }
};
+/*
+ * Worker functions shared between either dir2/dir3 or block/data formats
+ */
+static int
+__dir2_block_tail_offset(
+ struct xfs_dir2_data_hdr *block,
+ int startoff,
+ int idx)
+{
+ struct xfs_dir2_block_tail *btp;
+
+ ASSERT(startoff == 0);
+ ASSERT(idx == 0);
+ btp = xfs_dir2_block_tail_p(mp, block);
+ return bitize((int)((char *)btp - (char *)block));
+}
+
+static int
+__dir2_data_entries_count(
+ char *ptr,
+ char *endptr)
+{
+ int i;
+
+ for (i = 0; ptr < endptr; i++) {
+ struct xfs_dir2_data_entry *dep;
+ struct xfs_dir2_data_unused *dup;
+
+ dup = (xfs_dir2_data_unused_t *)ptr;
+ if (be16_to_cpu(dup->freetag) == XFS_DIR2_DATA_FREE_TAG)
+ ptr += be16_to_cpu(dup->length);
+ else {
+ dep = (xfs_dir2_data_entry_t *)ptr;
+ ptr += xfs_dir2_data_entsize(dep->namelen);
+ }
+ }
+ return i;
+}
+
+static char *
+__dir2_data_entry_offset(
+ char *ptr,
+ char *endptr,
+ int idx)
+{
+ int i;
+
+ for (i = 0; i < idx; i++) {
+ struct xfs_dir2_data_entry *dep;
+ struct xfs_dir2_data_unused *dup;
+
+ ASSERT(ptr < endptr);
+ dup = (xfs_dir2_data_unused_t *)ptr;
+ if (be16_to_cpu(dup->freetag) == XFS_DIR2_DATA_FREE_TAG)
+ ptr += be16_to_cpu(dup->length);
+ else {
+ dep = (xfs_dir2_data_entry_t *)ptr;
+ ptr += xfs_dir2_data_entsize(dep->namelen);
+ }
+ }
+ return ptr;
+}
+
+/*
+ * Block format functions
+ */
static int
dir2_block_hdr_count(
void *obj,
@@ -254,86 +320,50 @@ dir2_block_tail_offset(
int startoff,
int idx)
{
- struct xfs_dir2_data_hdr *block;
- struct xfs_dir2_block_tail *btp;
+ struct xfs_dir2_data_hdr *block = obj;
- ASSERT(startoff == 0);
- ASSERT(idx == 0);
- block = obj;
ASSERT(be32_to_cpu(block->magic) == XFS_DIR2_BLOCK_MAGIC);
- btp = xfs_dir2_block_tail_p(mp, block);
- return bitize((int)((char *)btp - (char *)block));
+ return __dir2_block_tail_offset(block, startoff, idx);
}
-/*ARGSUSED*/
static int
dir2_block_u_count(
void *obj,
int startoff)
{
- struct xfs_dir2_data_hdr *block;
+ struct xfs_dir2_data_hdr *block = obj;
struct xfs_dir2_block_tail *btp;
- char *endptr;
- int i;
- char *ptr;
ASSERT(startoff == 0);
- block = obj;
if (be32_to_cpu(block->magic) != XFS_DIR2_BLOCK_MAGIC)
return 0;
- btp = xfs_dir2_block_tail_p(mp, block);
- ptr = (char *)xfs_dir3_data_unused_p(block);
- endptr = (char *)xfs_dir2_block_leaf_p(btp);
- for (i = 0; ptr < endptr; i++) {
- struct xfs_dir2_data_entry *dep;
- struct xfs_dir2_data_unused *dup;
- dup = (xfs_dir2_data_unused_t *)ptr;
- if (be16_to_cpu(dup->freetag) == XFS_DIR2_DATA_FREE_TAG)
- ptr += be16_to_cpu(dup->length);
- else {
- dep = (xfs_dir2_data_entry_t *)ptr;
- ptr += xfs_dir2_data_entsize(dep->namelen);
- }
- }
- return i;
+ btp = xfs_dir2_block_tail_p(mp, block);
+ return __dir2_data_entries_count((char *)xfs_dir3_data_unused_p(block),
+ (char *)xfs_dir2_block_leaf_p(btp));
}
-/*ARGSUSED*/
static int
dir2_block_u_offset(
void *obj,
int startoff,
int idx)
{
- struct xfs_dir2_data_hdr *block;
+ struct xfs_dir2_data_hdr *block = obj;
struct xfs_dir2_block_tail *btp;
- char *endptr;
- int i;
char *ptr;
ASSERT(startoff == 0);
- block = obj;
ASSERT(be32_to_cpu(block->magic) == XFS_DIR2_BLOCK_MAGIC);
btp = xfs_dir2_block_tail_p(mp, block);
- ptr = (char *)xfs_dir3_data_unused_p(block);
- endptr = (char *)xfs_dir2_block_leaf_p(btp);
- for (i = 0; i < idx; i++) {
- struct xfs_dir2_data_entry *dep;
- struct xfs_dir2_data_unused *dup;
-
- ASSERT(ptr < endptr);
- dup = (xfs_dir2_data_unused_t *)ptr;
- if (be16_to_cpu(dup->freetag) == XFS_DIR2_DATA_FREE_TAG)
- ptr += be16_to_cpu(dup->length);
- else {
- dep = (xfs_dir2_data_entry_t *)ptr;
- ptr += xfs_dir2_data_entsize(dep->namelen);
- }
- }
+ ptr = __dir2_data_entry_offset((char *)xfs_dir3_data_unused_p(block),
+ (char *)xfs_dir2_block_leaf_p(btp), idx);
return bitize((int)(ptr - (char *)block));
}
+/*
+ * Data block format functions
+ */
static int
dir2_data_union_freetag_count(
void *obj,
@@ -489,66 +519,32 @@ dir2_data_u_count(
void *obj,
int startoff)
{
- struct xfs_dir2_data_hdr *data;
- char *endptr;
- int i;
- char *ptr;
+ struct xfs_dir2_data_hdr *data = obj;
ASSERT(startoff == 0);
- data = obj;
if (be32_to_cpu(data->magic) != XFS_DIR2_DATA_MAGIC)
return 0;
- ptr = (char *)xfs_dir3_data_unused_p(data);
- endptr = (char *)data + mp->m_dirblksize;
- for (i = 0; ptr < endptr; i++) {
- struct xfs_dir2_data_entry *dep;
- struct xfs_dir2_data_unused *dup;
- dup = (xfs_dir2_data_unused_t *)ptr;
- if (be16_to_cpu(dup->freetag) == XFS_DIR2_DATA_FREE_TAG)
- ptr += be16_to_cpu(dup->length);
- else {
- dep = (xfs_dir2_data_entry_t *)ptr;
- ptr += xfs_dir2_data_entsize(dep->namelen);
- }
- }
- return i;
+ return __dir2_data_entries_count((char *)xfs_dir3_data_unused_p(data),
+ (char *)data + mp->m_dirblksize);
}
-/*ARGSUSED*/
static int
dir2_data_u_offset(
void *obj,
int startoff,
int idx)
{
- struct xfs_dir2_data_hdr *data;
- char *endptr;
- int i;
+ struct xfs_dir2_data_hdr *data = obj;
char *ptr;
ASSERT(startoff == 0);
- data = obj;
ASSERT(be32_to_cpu(data->magic) == XFS_DIR2_DATA_MAGIC);
- ptr = (char *)xfs_dir3_data_unused_p(data);
- endptr = (char *)data + mp->m_dirblksize;
- for (i = 0; i < idx; i++) {
- struct xfs_dir2_data_entry *dep;
- struct xfs_dir2_data_unused *dup;
-
- ASSERT(ptr < endptr);
- dup = (xfs_dir2_data_unused_t *)ptr;
- if (be16_to_cpu(dup->freetag) == XFS_DIR2_DATA_FREE_TAG)
- ptr += be16_to_cpu(dup->length);
- else {
- dep = (xfs_dir2_data_entry_t *)ptr;
- ptr += xfs_dir2_data_entsize(dep->namelen);
- }
- }
+ ptr = __dir2_data_entry_offset((char *)xfs_dir3_data_unused_p(data),
+ (char *)data + mp->m_dirblksize, idx);
return bitize((int)(ptr - (char *)data));
}
-/*ARGSUSED*/
int
dir2_data_union_size(
void *obj,
--
1.7.10.4
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next prev parent reply other threads:[~2013-06-07 0:27 UTC|newest]
Thread overview: 165+ messages / expand[flat|nested] mbox.gz Atom feed top
2013-06-07 0:25 [PATCH 00/48] xfsprogs: CRC support Dave Chinner
2013-06-07 0:25 ` [PATCH 01/48] mkfs: fix realtime device initialisation Dave Chinner
2013-06-07 0:25 ` [PATCH 02/48] logprint: fix wrapped log dump issue Dave Chinner
2013-07-22 21:44 ` Ben Myers
2013-06-07 0:25 ` [PATCH 03/48] libxfs: add crc format changes to generic btrees Dave Chinner
2013-07-23 18:26 ` Ben Myers
2013-07-25 0:48 ` Dave Chinner
2013-07-25 17:15 ` Ben Myers
2013-07-26 0:39 ` Dave Chinner
2013-07-26 15:22 ` Ben Myers
2013-08-06 15:23 ` [PATCH 03a/48] xfs: don't verify bmbt reads twice Ben Myers
2013-06-07 0:25 ` [PATCH 04/48] xfsprogs: add crc format chagnes to ag headers Dave Chinner
2013-07-23 18:52 ` Ben Myers
2013-08-06 15:42 ` Ben Myers
2013-06-07 0:25 ` [PATCH 05/48] xfsprogs: Support new AGFL format Dave Chinner
2013-07-23 19:10 ` Ben Myers
2013-06-07 0:25 ` [PATCH 06/48] libxfs: change quota buffer formats Dave Chinner
2013-07-23 19:17 ` Ben Myers
2013-06-07 0:25 ` [PATCH 07/48] libxfs: add version 3 inode support Dave Chinner
2013-07-23 22:30 ` Ben Myers
2013-07-25 0:52 ` Dave Chinner
2013-08-06 16:23 ` Ben Myers
2013-06-07 0:25 ` [PATCH 08/48] libxfs: add support for crc headers on remote symlinks Dave Chinner
2013-07-24 20:07 ` Ben Myers
2013-06-07 0:25 ` [PATCH 09/48] xfs: add CRC checks to block format directory blocks Dave Chinner
2013-07-24 20:53 ` Ben Myers
2013-07-25 0:57 ` Dave Chinner
2013-06-07 0:25 ` [PATCH 10/48] xfs: add CRC checking to dir2 free blocks Dave Chinner
2013-07-24 21:29 ` Ben Myers
2013-06-07 0:25 ` [PATCH 11/48] xfs: add CRC checking to dir2 data blocks Dave Chinner
2013-07-24 22:23 ` Ben Myers
2013-06-07 0:25 ` [PATCH 12/48] xfs: add CRC checking to dir2 leaf blocks Dave Chinner
2013-07-24 23:00 ` Ben Myers
2013-07-25 16:33 ` Ben Myers
2013-06-07 0:25 ` [PATCH 13/48] xfs: shortform directory offsets change for dir3 format Dave Chinner
2013-07-25 17:28 ` Ben Myers
2013-06-07 0:25 ` [PATCH 14/48] xfs: add CRCs to dir2/da node blocks Dave Chinner
2013-07-25 18:58 ` Ben Myers
2013-06-07 0:25 ` [PATCH 15/48] xfs: add CRCs to attr leaf blocks Dave Chinner
2013-07-25 19:53 ` Ben Myers
2013-06-07 0:25 ` [PATCH 16/48] xfs: split remote attribute code out Dave Chinner
2013-07-25 20:27 ` Ben Myers
2013-06-07 0:25 ` [PATCH 17/48] xfs: add CRC protection to remote attributes Dave Chinner
2013-07-25 20:34 ` Ben Myers
2013-06-07 0:25 ` [PATCH 18/48] xfs: add buffer types to directory and attribute buffers Dave Chinner
2013-07-25 20:54 ` Ben Myers
2013-06-07 0:25 ` [PATCH 19/48] xfs: buffer type overruns blf_flags field Dave Chinner
2013-07-25 21:08 ` Ben Myers
2013-06-07 0:25 ` [PATCH 20/48] xfs: add CRC checks to the superblock Dave Chinner
2013-07-25 21:48 ` Ben Myers
2013-06-07 0:25 ` [PATCH 21/48] xfs: implement extended feature masks Dave Chinner
2013-07-25 22:08 ` Ben Myers
2013-07-26 0:19 ` Dave Chinner
2013-06-07 0:25 ` [PATCH 22/48] xfsprogs: Add verifiers to libxfs buffer interfaces Dave Chinner
2013-07-26 21:58 ` Ben Myers
2013-07-30 23:59 ` Dave Chinner
2013-06-07 0:25 ` [PATCH 23/48] xfsprogs: introduce CRC support into mkfs.xfs Dave Chinner
2013-07-30 21:08 ` Ben Myers
2013-06-07 0:25 ` [PATCH 24/48] xfsprogs: add crc format support to repair Dave Chinner
2013-08-01 16:21 ` Ben Myers
2013-06-07 0:25 ` [PATCH 25/48] xfs_repair: update for dir/attr crc format changes Dave Chinner
2013-08-01 18:44 ` Ben Myers
2013-06-07 0:25 ` [PATCH 26/48] xfsprogs: disable xfs_check for CRC enabled filesystems Dave Chinner
2013-08-01 19:01 ` Ben Myers
2013-06-07 0:25 ` [PATCH 27/48] xfs_db: disable modification for CRC enabled filessytems Dave Chinner
2013-08-01 19:11 ` Ben Myers
2013-06-07 0:25 ` [PATCH 28/48] libxfs: determine inode size from version number, not struct xfs_dinode Dave Chinner
2013-08-01 21:32 ` Ben Myers
2013-06-07 0:25 ` [PATCH 29/48] xfsdb: support version 5 superblock in versionnum command Dave Chinner
2013-08-01 21:44 ` Ben Myers
2013-06-07 0:25 ` [PATCH 30/48] xfsprogs: add crc format support to db Dave Chinner
2013-08-01 22:42 ` Ben Myers
2013-06-07 0:25 ` [PATCH 31/48] xfs_repair: always use incore header for directory block checks Dave Chinner
2013-08-01 22:46 ` Ben Myers
2013-06-07 0:25 ` [PATCH 32/48] xfs_db: convert directory parsing to use libxfs structure Dave Chinner
2013-08-05 14:52 ` Ben Myers
2013-06-07 0:25 ` Dave Chinner [this message]
2013-08-05 15:17 ` [PATCH 33/48] xfs_db: factor some common dir2 field parsing code Ben Myers
2013-06-07 0:25 ` [PATCH 34/48] xfs_db: update field printing for dir crc format changes Dave Chinner
2013-08-05 18:17 ` Ben Myers
2013-06-07 0:25 ` [PATCH 35/48] xfs_repair: convert directory parsing to use libxfs structure Dave Chinner
2013-08-05 18:32 ` Ben Myers
2013-06-07 0:25 ` [PATCH 36/48] xfs_repair: make directory freespace table CRC format aware Dave Chinner
2013-08-05 18:39 ` Ben Myers
2013-06-07 0:26 ` [PATCH 37/48] xfs_db: add CRC information to dquot output Dave Chinner
2013-08-05 18:42 ` Ben Myers
2013-06-07 0:26 ` [PATCH 38/48] xfs_db: add CRC support for attribute fork structures Dave Chinner
2013-08-05 20:02 ` Ben Myers
2013-06-07 0:26 ` [PATCH 39/48] mkfs.xfs: validate options for CRCs up front Dave Chinner
2013-06-20 21:17 ` Geoffrey Wehrman
2013-06-20 23:05 ` Dave Chinner
2013-06-21 13:44 ` Geoffrey Wehrman
2013-08-05 20:33 ` Ben Myers
2013-06-07 0:26 ` [PATCH 40/48] xfsprogs: support CRC enabled filesystem detection Dave Chinner
2013-08-05 20:43 ` Ben Myers
2013-06-07 0:26 ` [PATCH 41/48] xfs_mdrestore: recalculate sb CRC before writing Dave Chinner
2013-08-05 20:48 ` Ben Myers
2013-06-07 0:26 ` [PATCH 42/48] xfs_metadump: requires some object CRC recalculation Dave Chinner
2013-08-05 20:57 ` Ben Myers
2013-06-07 0:26 ` [PATCH 43/48] xfs_repair: drop buffer reference on symlink error Dave Chinner
2013-08-05 21:00 ` Ben Myers
2013-06-07 0:26 ` [PATCH 44/48] xfs_db: add support for CRC format remote symlinks Dave Chinner
2013-08-05 21:11 ` Ben Myers
2013-06-07 0:26 ` [PATCH 45/48] xfs_repair: fix btree block magic number mapping Dave Chinner
2013-08-05 21:16 ` Ben Myers
2013-06-07 0:26 ` [PATCH 46/48] libxfs: fix dir3 freespace block corruption Dave Chinner
2013-08-05 21:22 ` Ben Myers
2013-06-07 0:26 ` [PATCH 47/48] xfs_repair: support CRC enabled remote symlinks Dave Chinner
2013-08-05 21:40 ` Ben Myers
2013-06-07 0:26 ` [PATCH 48/48] xfsprogs: Document XFs specific mount options in xfs(5) Dave Chinner
2013-06-07 1:41 ` Dave Chinner
2013-06-07 6:11 ` [PATCH 00/48] xfsprogs: CRC support Dave Chinner
2013-06-07 21:04 ` Ben Myers
2013-06-10 22:16 ` Chandra Seetharaman
2013-06-10 23:56 ` Dave Chinner
2013-06-11 18:38 ` Ben Myers
2013-06-07 12:24 ` [PATCH 00/12] xfsprogs: add recent kernel CRC fixes Dave Chinner
2013-06-07 12:24 ` [PATCH 01/12] xfs: fix da node magic number mismatches Dave Chinner
2013-08-05 21:43 ` Ben Myers
2013-06-07 12:24 ` [PATCH 02/12] xfs: Remote attr validation fixes and optimisations Dave Chinner
2013-08-05 21:47 ` Ben Myers
2013-06-07 12:24 ` [PATCH 03/12] xfs: xfs_attr_shortform_allfit() does not handle attr3 format Dave Chinner
2013-08-05 21:49 ` Ben Myers
2013-06-07 12:24 ` [PATCH 04/12] xfs: remote attribute lookups require the value length Dave Chinner
2013-08-05 21:52 ` Ben Myers
2013-06-07 12:24 ` [PATCH 05/12] xfs: remote attribute allocation may be contiguous Dave Chinner
2013-08-05 21:54 ` Ben Myers
2013-06-07 12:24 ` [PATCH 06/12] xfs: remote attribute read too short Dave Chinner
2013-08-05 21:57 ` Ben Myers
2013-06-07 12:24 ` [PATCH 07/12] xfs: remote attribute tail zeroing does too much Dave Chinner
2013-08-05 21:59 ` Ben Myers
2013-06-07 12:24 ` [PATCH 08/12] xfs: correctly map remote attr buffers during removal Dave Chinner
2013-08-05 22:07 ` Ben Myers
2013-06-07 12:24 ` [PATCH 09/12] xfs: fully initialise temp leaf in xfs_attr3_leaf_unbalance Dave Chinner
2013-08-05 22:12 ` Ben Myers
2013-06-07 12:24 ` [PATCH 10/12] xfs: fully initialise temp leaf in xfs_attr3_leaf_compact Dave Chinner
2013-08-05 22:16 ` Ben Myers
2013-06-07 12:25 ` [PATCH 11/12] xfs: rework remote attr CRCs Dave Chinner
2013-08-05 22:25 ` Ben Myers
2013-06-07 12:25 ` [PATCH 12/12] xfs: don't emit v5 superblock warnings on write Dave Chinner
2013-08-05 22:28 ` Ben Myers
2013-08-06 21:41 ` [PATCH 00/48] xfsprogs: CRC support Ben Myers
2013-08-08 21:06 ` [PATCH 0/14] xfsprogs: various issues from review Ben Myers
2013-08-08 21:07 ` [PATCH 1/14] libxfs: don't verify bmbt reads twice Ben Myers
2013-08-08 21:08 ` [PATCH 2/14] xfsprogs: XFS_AGF_NUM_BITS should be 13 Ben Myers
2013-08-08 21:13 ` [PATCH 3/14] xfsprogs: pull in the rest of 93848a999cf Ben Myers
2013-08-11 23:26 ` ***** SUSPECTED SPAM ***** " Dave Chinner
2013-08-08 21:16 ` [PATCH 04/14] xfsprogs: fix gpl headers in xfs_symlink Ben Myers
2013-08-08 21:20 ` [PATCH 5/14] xfsprogs: sync commit f5f3d9b016 completely Ben Myers
2013-08-08 22:05 ` Eric Sandeen
2013-08-11 23:23 ` ***** SUSPECTED SPAM ***** " Dave Chinner
2013-08-08 21:24 ` [PATCH 6/14] xfsprogs: cleanup some whitespace Ben Myers
2013-08-11 23:24 ` ***** SUSPECTED SPAM ***** " Dave Chinner
2013-08-08 21:33 ` [PATCH 7/14] xfsprogs: fix issues with commit 75c8b4343abb Ben Myers
2013-08-11 23:31 ` ***** SUSPECTED SPAM ***** " Dave Chinner
2013-08-08 21:53 ` [PATCH 8/14] xfsprogs: fix issues with e0607266f23 Ben Myers
2013-08-08 22:07 ` Eric Sandeen
2013-08-08 22:14 ` Eric Sandeen
2013-08-08 22:28 ` [v2 PATCH " Ben Myers
2013-08-08 23:26 ` Eric Sandeen
2013-08-08 23:34 ` Eric Sandeen
2013-08-09 14:00 ` Ben Myers
2013-08-08 22:00 ` [PATCH 9] xfsprogs: issues with a24374f41c9 Ben Myers
2013-08-08 22:02 ` [PATCH 0/14] xfsprogs: various issues from review Ben Myers
2013-08-11 23:33 ` ***** SUSPECTED SPAM ***** " Dave Chinner
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