From a36159eec6ca17402b0e146b86efaf76568dc353 Mon Sep 17 00:00:00 2001
From: hc <hc@nodka.com>
Date: Fri, 20 Sep 2024 01:41:23 +0000
Subject: [PATCH] 重命名 AX88772C_eeprom/asix.c 为 asix_mac.c
---
kernel/fs/xfs/libxfs/xfs_ag.c | 212 +++++++++++++++++++++++++++++++++++++++++++----------
1 files changed, 172 insertions(+), 40 deletions(-)
diff --git a/kernel/fs/xfs/libxfs/xfs_ag.c b/kernel/fs/xfs/libxfs/xfs_ag.c
index 9345802..9331f35 100644
--- a/kernel/fs/xfs/libxfs/xfs_ag.c
+++ b/kernel/fs/xfs/libxfs/xfs_ag.c
@@ -10,6 +10,7 @@
#include "xfs_shared.h"
#include "xfs_format.h"
#include "xfs_trans_resv.h"
+#include "xfs_bit.h"
#include "xfs_sb.h"
#include "xfs_mount.h"
#include "xfs_btree.h"
@@ -19,27 +20,37 @@
#include "xfs_ialloc.h"
#include "xfs_rmap.h"
#include "xfs_ag.h"
+#include "xfs_ag_resv.h"
+#include "xfs_health.h"
-static struct xfs_buf *
+static int
xfs_get_aghdr_buf(
struct xfs_mount *mp,
xfs_daddr_t blkno,
size_t numblks,
- int flags,
+ struct xfs_buf **bpp,
const struct xfs_buf_ops *ops)
{
struct xfs_buf *bp;
+ int error;
- bp = xfs_buf_get_uncached(mp->m_ddev_targp, numblks, flags);
- if (!bp)
- return NULL;
+ error = xfs_buf_get_uncached(mp->m_ddev_targp, numblks, 0, &bp);
+ if (error)
+ return error;
xfs_buf_zero(bp, 0, BBTOB(bp->b_length));
bp->b_bn = blkno;
bp->b_maps[0].bm_bn = blkno;
bp->b_ops = ops;
- return bp;
+ *bpp = bp;
+ return 0;
+}
+
+static inline bool is_log_ag(struct xfs_mount *mp, struct aghdr_init_data *id)
+{
+ return mp->m_sb.sb_logstart > 0 &&
+ id->agno == XFS_FSB_TO_AGNO(mp, mp->m_sb.sb_logstart);
}
/*
@@ -51,7 +62,62 @@
struct xfs_buf *bp,
struct aghdr_init_data *id)
{
- xfs_btree_init_block(mp, bp, id->type, 0, 0, id->agno, 0);
+ xfs_btree_init_block(mp, bp, id->type, 0, 0, id->agno);
+}
+
+/* Finish initializing a free space btree. */
+static void
+xfs_freesp_init_recs(
+ struct xfs_mount *mp,
+ struct xfs_buf *bp,
+ struct aghdr_init_data *id)
+{
+ struct xfs_alloc_rec *arec;
+ struct xfs_btree_block *block = XFS_BUF_TO_BLOCK(bp);
+
+ arec = XFS_ALLOC_REC_ADDR(mp, XFS_BUF_TO_BLOCK(bp), 1);
+ arec->ar_startblock = cpu_to_be32(mp->m_ag_prealloc_blocks);
+
+ if (is_log_ag(mp, id)) {
+ struct xfs_alloc_rec *nrec;
+ xfs_agblock_t start = XFS_FSB_TO_AGBNO(mp,
+ mp->m_sb.sb_logstart);
+
+ ASSERT(start >= mp->m_ag_prealloc_blocks);
+ if (start != mp->m_ag_prealloc_blocks) {
+ /*
+ * Modify first record to pad stripe align of log
+ */
+ arec->ar_blockcount = cpu_to_be32(start -
+ mp->m_ag_prealloc_blocks);
+ nrec = arec + 1;
+
+ /*
+ * Insert second record at start of internal log
+ * which then gets trimmed.
+ */
+ nrec->ar_startblock = cpu_to_be32(
+ be32_to_cpu(arec->ar_startblock) +
+ be32_to_cpu(arec->ar_blockcount));
+ arec = nrec;
+ be16_add_cpu(&block->bb_numrecs, 1);
+ }
+ /*
+ * Change record start to after the internal log
+ */
+ be32_add_cpu(&arec->ar_startblock, mp->m_sb.sb_logblocks);
+ }
+
+ /*
+ * Calculate the record block count and check for the case where
+ * the log might have consumed all available space in the AG. If
+ * so, reset the record count to 0 to avoid exposure of an invalid
+ * record start block.
+ */
+ arec->ar_blockcount = cpu_to_be32(id->agsize -
+ be32_to_cpu(arec->ar_startblock));
+ if (!arec->ar_blockcount)
+ block->bb_numrecs = 0;
}
/*
@@ -63,13 +129,8 @@
struct xfs_buf *bp,
struct aghdr_init_data *id)
{
- struct xfs_alloc_rec *arec;
-
- xfs_btree_init_block(mp, bp, XFS_BTNUM_BNO, 0, 1, id->agno, 0);
- arec = XFS_ALLOC_REC_ADDR(mp, XFS_BUF_TO_BLOCK(bp), 1);
- arec->ar_startblock = cpu_to_be32(mp->m_ag_prealloc_blocks);
- arec->ar_blockcount = cpu_to_be32(id->agsize -
- be32_to_cpu(arec->ar_startblock));
+ xfs_btree_init_block(mp, bp, XFS_BTNUM_BNO, 0, 1, id->agno);
+ xfs_freesp_init_recs(mp, bp, id);
}
static void
@@ -78,13 +139,8 @@
struct xfs_buf *bp,
struct aghdr_init_data *id)
{
- struct xfs_alloc_rec *arec;
-
- xfs_btree_init_block(mp, bp, XFS_BTNUM_CNT, 0, 1, id->agno, 0);
- arec = XFS_ALLOC_REC_ADDR(mp, XFS_BUF_TO_BLOCK(bp), 1);
- arec->ar_startblock = cpu_to_be32(mp->m_ag_prealloc_blocks);
- arec->ar_blockcount = cpu_to_be32(id->agsize -
- be32_to_cpu(arec->ar_startblock));
+ xfs_btree_init_block(mp, bp, XFS_BTNUM_CNT, 0, 1, id->agno);
+ xfs_freesp_init_recs(mp, bp, id);
}
/*
@@ -99,7 +155,7 @@
struct xfs_btree_block *block = XFS_BUF_TO_BLOCK(bp);
struct xfs_rmap_rec *rrec;
- xfs_btree_init_block(mp, bp, XFS_BTNUM_RMAP, 0, 4, id->agno, 0);
+ xfs_btree_init_block(mp, bp, XFS_BTNUM_RMAP, 0, 4, id->agno);
/*
* mark the AG header regions as static metadata The BNO
@@ -147,6 +203,18 @@
rrec->rm_offset = 0;
be16_add_cpu(&block->bb_numrecs, 1);
}
+
+ /* account for the log space */
+ if (is_log_ag(mp, id)) {
+ rrec = XFS_RMAP_REC_ADDR(block,
+ be16_to_cpu(block->bb_numrecs) + 1);
+ rrec->rm_startblock = cpu_to_be32(
+ XFS_FSB_TO_AGBNO(mp, mp->m_sb.sb_logstart));
+ rrec->rm_blockcount = cpu_to_be32(mp->m_sb.sb_logblocks);
+ rrec->rm_owner = cpu_to_be64(XFS_RMAP_OWN_LOG);
+ rrec->rm_offset = 0;
+ be16_add_cpu(&block->bb_numrecs, 1);
+ }
}
/*
@@ -163,7 +231,7 @@
struct xfs_buf *bp,
struct aghdr_init_data *id)
{
- struct xfs_dsb *dsb = XFS_BUF_TO_SBP(bp);
+ struct xfs_dsb *dsb = bp->b_addr;
xfs_sb_to_disk(dsb, &mp->m_sb);
dsb->sb_inprogress = 1;
@@ -175,7 +243,7 @@
struct xfs_buf *bp,
struct aghdr_init_data *id)
{
- struct xfs_agf *agf = XFS_BUF_TO_AGF(bp);
+ struct xfs_agf *agf = bp->b_addr;
xfs_extlen_t tmpsize;
agf->agf_magicnum = cpu_to_be32(XFS_AGF_MAGIC);
@@ -207,6 +275,14 @@
agf->agf_refcount_level = cpu_to_be32(1);
agf->agf_refcount_blocks = cpu_to_be32(1);
}
+
+ if (is_log_ag(mp, id)) {
+ int64_t logblocks = mp->m_sb.sb_logblocks;
+
+ be32_add_cpu(&agf->agf_freeblks, -logblocks);
+ agf->agf_longest = cpu_to_be32(id->agsize -
+ XFS_FSB_TO_AGBNO(mp, mp->m_sb.sb_logstart) - logblocks);
+ }
}
static void
@@ -225,7 +301,7 @@
uuid_copy(&agfl->agfl_uuid, &mp->m_sb.sb_meta_uuid);
}
- agfl_bno = XFS_BUF_TO_AGFL_BNO(mp, bp);
+ agfl_bno = xfs_buf_to_agfl_bno(bp);
for (bucket = 0; bucket < xfs_agfl_size(mp); bucket++)
agfl_bno[bucket] = cpu_to_be32(NULLAGBLOCK);
}
@@ -236,7 +312,7 @@
struct xfs_buf *bp,
struct aghdr_init_data *id)
{
- struct xfs_agi *agi = XFS_BUF_TO_AGI(bp);
+ struct xfs_agi *agi = bp->b_addr;
int bucket;
agi->agi_magicnum = cpu_to_be32(XFS_AGI_MAGIC);
@@ -257,6 +333,11 @@
}
for (bucket = 0; bucket < XFS_AGI_UNLINKED_BUCKETS; bucket++)
agi->agi_unlinked[bucket] = cpu_to_be32(NULLAGINO);
+ if (xfs_sb_version_hasinobtcounts(&mp->m_sb)) {
+ agi->agi_iblocks = cpu_to_be32(1);
+ if (xfs_sb_version_hasfinobt(&mp->m_sb))
+ agi->agi_fblocks = cpu_to_be32(1);
+ }
}
typedef void (*aghdr_init_work_f)(struct xfs_mount *mp, struct xfs_buf *bp,
@@ -267,13 +348,13 @@
struct aghdr_init_data *id,
aghdr_init_work_f work,
const struct xfs_buf_ops *ops)
-
{
struct xfs_buf *bp;
+ int error;
- bp = xfs_get_aghdr_buf(mp, id->daddr, id->numblks, 0, ops);
- if (!bp)
- return -ENOMEM;
+ error = xfs_get_aghdr_buf(mp, id->daddr, id->numblks, &bp, ops);
+ if (error)
+ return error;
(*work)(mp, bp, id);
@@ -339,14 +420,14 @@
{ /* BNO root block */
.daddr = XFS_AGB_TO_DADDR(mp, id->agno, XFS_BNO_BLOCK(mp)),
.numblks = BTOBB(mp->m_sb.sb_blocksize),
- .ops = &xfs_allocbt_buf_ops,
+ .ops = &xfs_bnobt_buf_ops,
.work = &xfs_bnoroot_init,
.need_init = true
},
{ /* CNT root block */
.daddr = XFS_AGB_TO_DADDR(mp, id->agno, XFS_CNT_BLOCK(mp)),
.numblks = BTOBB(mp->m_sb.sb_blocksize),
- .ops = &xfs_allocbt_buf_ops,
+ .ops = &xfs_cntbt_buf_ops,
.work = &xfs_cntroot_init,
.need_init = true
},
@@ -361,7 +442,7 @@
{ /* FINO root block */
.daddr = XFS_AGB_TO_DADDR(mp, id->agno, XFS_FIBT_BLOCK(mp)),
.numblks = BTOBB(mp->m_sb.sb_blocksize),
- .ops = &xfs_inobt_buf_ops,
+ .ops = &xfs_finobt_buf_ops,
.work = &xfs_btroot_init,
.type = XFS_BTNUM_FINO,
.need_init = xfs_sb_version_hasfinobt(&mp->m_sb)
@@ -414,7 +495,6 @@
struct aghdr_init_data *id,
xfs_extlen_t len)
{
- struct xfs_owner_info oinfo;
struct xfs_buf *bp;
struct xfs_agi *agi;
struct xfs_agf *agf;
@@ -427,7 +507,7 @@
if (error)
return error;
- agi = XFS_BUF_TO_AGI(bp);
+ agi = bp->b_addr;
be32_add_cpu(&agi->agi_length, len);
ASSERT(id->agno == mp->m_sb.sb_agcount - 1 ||
be32_to_cpu(agi->agi_length) == mp->m_sb.sb_agblocks);
@@ -440,7 +520,7 @@
if (error)
return error;
- agf = XFS_BUF_TO_AGF(bp);
+ agf = bp->b_addr;
be32_add_cpu(&agf->agf_length, len);
ASSERT(agf->agf_length == agi->agi_length);
xfs_alloc_log_agf(tp, bp, XFS_AGF_LENGTH);
@@ -448,17 +528,69 @@
/*
* Free the new space.
*
- * XFS_RMAP_OWN_NULL is used here to tell the rmap btree that
+ * XFS_RMAP_OINFO_SKIP_UPDATE is used here to tell the rmap btree that
* this doesn't actually exist in the rmap btree.
*/
- xfs_rmap_ag_owner(&oinfo, XFS_RMAP_OWN_NULL);
error = xfs_rmap_free(tp, bp, id->agno,
be32_to_cpu(agf->agf_length) - len,
- len, &oinfo);
+ len, &XFS_RMAP_OINFO_SKIP_UPDATE);
if (error)
return error;
return xfs_free_extent(tp, XFS_AGB_TO_FSB(mp, id->agno,
be32_to_cpu(agf->agf_length) - len),
- len, &oinfo, XFS_AG_RESV_NONE);
+ len, &XFS_RMAP_OINFO_SKIP_UPDATE,
+ XFS_AG_RESV_NONE);
+}
+
+/* Retrieve AG geometry. */
+int
+xfs_ag_get_geometry(
+ struct xfs_mount *mp,
+ xfs_agnumber_t agno,
+ struct xfs_ag_geometry *ageo)
+{
+ struct xfs_buf *agi_bp;
+ struct xfs_buf *agf_bp;
+ struct xfs_agi *agi;
+ struct xfs_agf *agf;
+ struct xfs_perag *pag;
+ unsigned int freeblks;
+ int error;
+
+ if (agno >= mp->m_sb.sb_agcount)
+ return -EINVAL;
+
+ /* Lock the AG headers. */
+ error = xfs_ialloc_read_agi(mp, NULL, agno, &agi_bp);
+ if (error)
+ return error;
+ error = xfs_alloc_read_agf(mp, NULL, agno, 0, &agf_bp);
+ if (error)
+ goto out_agi;
+
+ pag = agi_bp->b_pag;
+
+ /* Fill out form. */
+ memset(ageo, 0, sizeof(*ageo));
+ ageo->ag_number = agno;
+
+ agi = agi_bp->b_addr;
+ ageo->ag_icount = be32_to_cpu(agi->agi_count);
+ ageo->ag_ifree = be32_to_cpu(agi->agi_freecount);
+
+ agf = agf_bp->b_addr;
+ ageo->ag_length = be32_to_cpu(agf->agf_length);
+ freeblks = pag->pagf_freeblks +
+ pag->pagf_flcount +
+ pag->pagf_btreeblks -
+ xfs_ag_resv_needed(pag, XFS_AG_RESV_NONE);
+ ageo->ag_freeblks = freeblks;
+ xfs_ag_geom_health(pag, ageo);
+
+ /* Release resources. */
+ xfs_buf_relse(agf_bp);
+out_agi:
+ xfs_buf_relse(agi_bp);
+ return error;
}
--
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