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authorLinus Torvalds <torvalds@woody.linux-foundation.org>2007-10-01 07:59:39 -0700
committerLinus Torvalds <torvalds@woody.linux-foundation.org>2007-10-01 08:01:25 -0700
commit50ef295119645215c076700e7ddf4869df5f56ce (patch)
treea537e851b09132deaec6efcfee91a26355d74d5a
parent9f96cb1e8bca179a92afa40dfc3c49990f1cfc71 (diff)
parent564256c9e06d75e16d894a2cd30604bd6582cbba (diff)
Merge branch 'for-linus' of git://oss.sgi.com:8090/xfs/xfs-2.6
* 'for-linus' of git://oss.sgi.com:8090/xfs/xfs-2.6: Revert "[XFS] Avoid replaying inode buffer initialisation log items if .. [ Fixed it and added some commit messages by hand to that branch - Linus ] Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
-rw-r--r--fs/xfs/xfs_buf_item.h5
-rw-r--r--fs/xfs/xfs_log_recover.c51
-rw-r--r--fs/xfs/xfs_trans_buf.c1
3 files changed, 3 insertions, 54 deletions
diff --git a/fs/xfs/xfs_buf_item.h b/fs/xfs/xfs_buf_item.h
index fa25b7dcc6c3..d7e136143066 100644
--- a/fs/xfs/xfs_buf_item.h
+++ b/fs/xfs/xfs_buf_item.h
@@ -52,11 +52,6 @@ typedef struct xfs_buf_log_format_t {
#define XFS_BLI_UDQUOT_BUF 0x4
#define XFS_BLI_PDQUOT_BUF 0x8
#define XFS_BLI_GDQUOT_BUF 0x10
-/*
- * This flag indicates that the buffer contains newly allocated
- * inodes.
- */
-#define XFS_BLI_INODE_NEW_BUF 0x20
#define XFS_BLI_CHUNK 128
#define XFS_BLI_SHIFT 7
diff --git a/fs/xfs/xfs_log_recover.c b/fs/xfs/xfs_log_recover.c
index 7174991f4bef..8ae6e8e5f3db 100644
--- a/fs/xfs/xfs_log_recover.c
+++ b/fs/xfs/xfs_log_recover.c
@@ -1874,7 +1874,6 @@ xlog_recover_do_inode_buffer(
/*ARGSUSED*/
STATIC void
xlog_recover_do_reg_buffer(
- xfs_mount_t *mp,
xlog_recover_item_t *item,
xfs_buf_t *bp,
xfs_buf_log_format_t *buf_f)
@@ -1885,50 +1884,6 @@ xlog_recover_do_reg_buffer(
unsigned int *data_map = NULL;
unsigned int map_size = 0;
int error;
- int stale_buf = 1;
-
- /*
- * Scan through the on-disk inode buffer and attempt to
- * determine if it has been written to since it was logged.
- *
- * - If any of the magic numbers are incorrect then the buffer is stale
- * - If any of the modes are non-zero then the buffer is not stale
- * - If all of the modes are zero and at least one of the generation
- * counts is non-zero then the buffer is stale
- *
- * If the end result is a stale buffer then the log buffer is replayed
- * otherwise it is skipped.
- *
- * This heuristic is not perfect. It can be improved by scanning the
- * entire inode chunk for evidence that any of the inode clusters have
- * been updated. To fix this problem completely we will need a major
- * architectural change to the logging system.
- */
- if (buf_f->blf_flags & XFS_BLI_INODE_NEW_BUF) {
- xfs_dinode_t *dip;
- int inodes_per_buf;
- int mode_count = 0;
- int gen_count = 0;
-
- stale_buf = 0;
- inodes_per_buf = XFS_BUF_COUNT(bp) >> mp->m_sb.sb_inodelog;
- for (i = 0; i < inodes_per_buf; i++) {
- dip = (xfs_dinode_t *)xfs_buf_offset(bp,
- i * mp->m_sb.sb_inodesize);
- if (be16_to_cpu(dip->di_core.di_magic) !=
- XFS_DINODE_MAGIC) {
- stale_buf = 1;
- break;
- }
- if (dip->di_core.di_mode)
- mode_count++;
- if (dip->di_core.di_gen)
- gen_count++;
- }
-
- if (!mode_count && gen_count)
- stale_buf = 1;
- }
switch (buf_f->blf_type) {
case XFS_LI_BUF:
@@ -1962,7 +1917,7 @@ xlog_recover_do_reg_buffer(
-1, 0, XFS_QMOPT_DOWARN,
"dquot_buf_recover");
}
- if (!error && stale_buf)
+ if (!error)
memcpy(xfs_buf_offset(bp,
(uint)bit << XFS_BLI_SHIFT), /* dest */
item->ri_buf[i].i_addr, /* source */
@@ -2134,7 +2089,7 @@ xlog_recover_do_dquot_buffer(
if (log->l_quotaoffs_flag & type)
return;
- xlog_recover_do_reg_buffer(mp, item, bp, buf_f);
+ xlog_recover_do_reg_buffer(item, bp, buf_f);
}
/*
@@ -2235,7 +2190,7 @@ xlog_recover_do_buffer_trans(
(XFS_BLI_UDQUOT_BUF|XFS_BLI_PDQUOT_BUF|XFS_BLI_GDQUOT_BUF)) {
xlog_recover_do_dquot_buffer(mp, log, item, bp, buf_f);
} else {
- xlog_recover_do_reg_buffer(mp, item, bp, buf_f);
+ xlog_recover_do_reg_buffer(item, bp, buf_f);
}
if (error)
return XFS_ERROR(error);
diff --git a/fs/xfs/xfs_trans_buf.c b/fs/xfs/xfs_trans_buf.c
index 95fff6872a2f..60b6b898022b 100644
--- a/fs/xfs/xfs_trans_buf.c
+++ b/fs/xfs/xfs_trans_buf.c
@@ -966,7 +966,6 @@ xfs_trans_inode_alloc_buf(
ASSERT(atomic_read(&bip->bli_refcount) > 0);
bip->bli_flags |= XFS_BLI_INODE_ALLOC_BUF;
- bip->bli_format.blf_flags |= XFS_BLI_INODE_NEW_BUF;
}

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