* [PATCH 01/10] xfs: refactor xfs_ialloc_btree.c to support multiple inobt numbers
2013-10-09 18:06 [PATCH 00/10] xfs: introduce the free inode btree Brian Foster
@ 2013-10-09 18:06 ` Brian Foster
2013-10-09 18:06 ` [PATCH 02/10] xfs: reserve v5 superblock read-only compat. feature bit for finobt Brian Foster
` (9 subsequent siblings)
10 siblings, 0 replies; 12+ messages in thread
From: Brian Foster @ 2013-10-09 18:06 UTC (permalink / raw)
To: xfs
The introduction of the free inode btree (finobt) requires that
xfs_ialloc_btree.c handle multiple trees. Refactor xfs_ialloc_btree.c
so the caller specifies the btree type on cursor initialization to
prepare for addition of the finobt.
Signed-off-by: Brian Foster <bfoster@redhat.com>
Reviewed-by: Dave Chinner <david@fromorbit.com>
---
fs/xfs/xfs_ialloc.c | 8 ++++----
fs/xfs/xfs_ialloc_btree.c | 8 +++++---
fs/xfs/xfs_ialloc_btree.h | 3 ++-
fs/xfs/xfs_itable.c | 6 ++++--
4 files changed, 15 insertions(+), 10 deletions(-)
diff --git a/fs/xfs/xfs_ialloc.c b/fs/xfs/xfs_ialloc.c
index ccf2fb1..524aa88 100644
--- a/fs/xfs/xfs_ialloc.c
+++ b/fs/xfs/xfs_ialloc.c
@@ -455,7 +455,7 @@ xfs_ialloc_ag_alloc(
/*
* Insert records describing the new inode chunk into the btree.
*/
- cur = xfs_inobt_init_cursor(args.mp, tp, agbp, agno);
+ cur = xfs_inobt_init_cursor(args.mp, tp, agbp, agno, XFS_BTNUM_INO);
for (thisino = newino;
thisino < newino + newlen;
thisino += XFS_INODES_PER_CHUNK) {
@@ -701,7 +701,7 @@ xfs_dialloc_ag(
ASSERT(pag->pagi_freecount > 0);
restart_pagno:
- cur = xfs_inobt_init_cursor(mp, tp, agbp, agno);
+ cur = xfs_inobt_init_cursor(mp, tp, agbp, agno, XFS_BTNUM_INO);
/*
* If pagino is 0 (this is the root inode allocation) use newino.
* This must work because we've just allocated some.
@@ -1163,7 +1163,7 @@ xfs_difree(
/*
* Initialize the cursor.
*/
- cur = xfs_inobt_init_cursor(mp, tp, agbp, agno);
+ cur = xfs_inobt_init_cursor(mp, tp, agbp, agno, XFS_BTNUM_INO);
error = xfs_check_agi_freecount(cur, agi);
if (error)
@@ -1294,7 +1294,7 @@ xfs_imap_lookup(
* we have a record, we need to ensure it contains the inode number
* we are looking up.
*/
- cur = xfs_inobt_init_cursor(mp, tp, agbp, agno);
+ cur = xfs_inobt_init_cursor(mp, tp, agbp, agno, XFS_BTNUM_INO);
error = xfs_inobt_lookup(cur, agino, XFS_LOOKUP_LE, &i);
if (!error) {
if (i)
diff --git a/fs/xfs/xfs_ialloc_btree.c b/fs/xfs/xfs_ialloc_btree.c
index 5448eb6..0cdb88b 100644
--- a/fs/xfs/xfs_ialloc_btree.c
+++ b/fs/xfs/xfs_ialloc_btree.c
@@ -50,7 +50,8 @@ xfs_inobt_dup_cursor(
struct xfs_btree_cur *cur)
{
return xfs_inobt_init_cursor(cur->bc_mp, cur->bc_tp,
- cur->bc_private.a.agbp, cur->bc_private.a.agno);
+ cur->bc_private.a.agbp, cur->bc_private.a.agno,
+ cur->bc_btnum);
}
STATIC void
@@ -324,7 +325,8 @@ xfs_inobt_init_cursor(
struct xfs_mount *mp, /* file system mount point */
struct xfs_trans *tp, /* transaction pointer */
struct xfs_buf *agbp, /* buffer for agi structure */
- xfs_agnumber_t agno) /* allocation group number */
+ xfs_agnumber_t agno, /* allocation group number */
+ xfs_btnum_t btnum) /* ialloc or free ino btree */
{
struct xfs_agi *agi = XFS_BUF_TO_AGI(agbp);
struct xfs_btree_cur *cur;
@@ -334,7 +336,7 @@ xfs_inobt_init_cursor(
cur->bc_tp = tp;
cur->bc_mp = mp;
cur->bc_nlevels = be32_to_cpu(agi->agi_level);
- cur->bc_btnum = XFS_BTNUM_INO;
+ cur->bc_btnum = btnum;
cur->bc_blocklog = mp->m_sb.sb_blocklog;
cur->bc_ops = &xfs_inobt_ops;
diff --git a/fs/xfs/xfs_ialloc_btree.h b/fs/xfs/xfs_ialloc_btree.h
index 3ac36b76..ce7a62b 100644
--- a/fs/xfs/xfs_ialloc_btree.h
+++ b/fs/xfs/xfs_ialloc_btree.h
@@ -107,7 +107,8 @@ typedef __be32 xfs_inobt_ptr_t;
((index) - 1) * sizeof(xfs_inobt_ptr_t)))
extern struct xfs_btree_cur *xfs_inobt_init_cursor(struct xfs_mount *,
- struct xfs_trans *, struct xfs_buf *, xfs_agnumber_t);
+ struct xfs_trans *, struct xfs_buf *, xfs_agnumber_t,
+ xfs_btnum_t);
extern int xfs_inobt_maxrecs(struct xfs_mount *, int, int);
extern const struct xfs_buf_ops xfs_inobt_buf_ops;
diff --git a/fs/xfs/xfs_itable.c b/fs/xfs/xfs_itable.c
index 084b3e1..498c2b6 100644
--- a/fs/xfs/xfs_itable.c
+++ b/fs/xfs/xfs_itable.c
@@ -275,7 +275,8 @@ xfs_bulkstat(
/*
* Allocate and initialize a btree cursor for ialloc btree.
*/
- cur = xfs_inobt_init_cursor(mp, NULL, agbp, agno);
+ cur = xfs_inobt_init_cursor(mp, NULL, agbp, agno,
+ XFS_BTNUM_INO);
irbp = irbuf;
irbufend = irbuf + nirbuf;
end_of_ag = 0;
@@ -626,7 +627,8 @@ xfs_inumbers(
agino = 0;
continue;
}
- cur = xfs_inobt_init_cursor(mp, NULL, agbp, agno);
+ cur = xfs_inobt_init_cursor(mp, NULL, agbp, agno,
+ XFS_BTNUM_INO);
error = xfs_inobt_lookup(cur, agino, XFS_LOOKUP_GE,
&tmp);
if (error) {
--
1.8.1.4
_______________________________________________
xfs mailing list
xfs@oss.sgi.com
http://oss.sgi.com/mailman/listinfo/xfs
^ permalink raw reply related [flat|nested] 12+ messages in thread* [PATCH 02/10] xfs: reserve v5 superblock read-only compat. feature bit for finobt
2013-10-09 18:06 [PATCH 00/10] xfs: introduce the free inode btree Brian Foster
2013-10-09 18:06 ` [PATCH 01/10] xfs: refactor xfs_ialloc_btree.c to support multiple inobt numbers Brian Foster
@ 2013-10-09 18:06 ` Brian Foster
2013-10-09 18:06 ` [PATCH 03/10] xfs: support the XFS_BTNUM_FINOBT free inode btree type Brian Foster
` (8 subsequent siblings)
10 siblings, 0 replies; 12+ messages in thread
From: Brian Foster @ 2013-10-09 18:06 UTC (permalink / raw)
To: xfs
Reserve a v5 read-only compatibility feature bit for the finobt and
create the xfs_sb_version_hasfinobt() helper to determine whether
an fs has the feature enabled.
The finobt does not change existing on-disk structures, but must
remain consistent with the ialloc btree. Modifications from older
kernels would violate that constrant. Therefore, we restrict older
kernels to read-only mounts of finobt-enabled filesystems.
Note that this does not yet enable the ability to rw mount a finobt
fs (by setting the feature bit in the XFS_SB_FEAT_RO_COMPAT_ALL
mask).
Signed-off-by: Brian Foster <bfoster@redhat.com>
---
fs/xfs/xfs_sb.h | 7 +++++++
1 file changed, 7 insertions(+)
diff --git a/fs/xfs/xfs_sb.h b/fs/xfs/xfs_sb.h
index 6835b44..0013bac 100644
--- a/fs/xfs/xfs_sb.h
+++ b/fs/xfs/xfs_sb.h
@@ -585,6 +585,7 @@ xfs_sb_has_compat_feature(
return (sbp->sb_features_compat & feature) != 0;
}
+#define XFS_SB_FEAT_RO_COMPAT_FINOBT (1 << 0) /* free inode btree */
#define XFS_SB_FEAT_RO_COMPAT_ALL 0
#define XFS_SB_FEAT_RO_COMPAT_UNKNOWN ~XFS_SB_FEAT_RO_COMPAT_ALL
static inline bool
@@ -639,6 +640,12 @@ static inline int xfs_sb_version_hasftype(struct xfs_sb *sbp)
(sbp->sb_features2 & XFS_SB_VERSION2_FTYPE));
}
+static inline int xfs_sb_version_hasfinobt(xfs_sb_t *sbp)
+{
+ return (XFS_SB_VERSION_NUM(sbp) == XFS_SB_VERSION_5) &&
+ (sbp->sb_features_ro_compat & XFS_SB_FEAT_RO_COMPAT_FINOBT);
+}
+
/*
* end of superblock version macros
*/
--
1.8.1.4
_______________________________________________
xfs mailing list
xfs@oss.sgi.com
http://oss.sgi.com/mailman/listinfo/xfs
^ permalink raw reply related [flat|nested] 12+ messages in thread* [PATCH 03/10] xfs: support the XFS_BTNUM_FINOBT free inode btree type
2013-10-09 18:06 [PATCH 00/10] xfs: introduce the free inode btree Brian Foster
2013-10-09 18:06 ` [PATCH 01/10] xfs: refactor xfs_ialloc_btree.c to support multiple inobt numbers Brian Foster
2013-10-09 18:06 ` [PATCH 02/10] xfs: reserve v5 superblock read-only compat. feature bit for finobt Brian Foster
@ 2013-10-09 18:06 ` Brian Foster
2013-10-09 18:06 ` [PATCH 04/10] xfs: update inode allocation/free transaction reservations for finobt Brian Foster
` (7 subsequent siblings)
10 siblings, 0 replies; 12+ messages in thread
From: Brian Foster @ 2013-10-09 18:06 UTC (permalink / raw)
To: xfs
Define the AGI fields for the finobt root/level and add magic
numbers. Update the btree code to add support for the new
XFS_BTNUM_FINOBT inode btree.
The finobt root block is reserved immediately following the inobt
root block in the AG. Update XFS_PREALLOC_BLOCKS() to determine the
starting AG data block based on whether finobt support is enabled.
Signed-off-by: Brian Foster <bfoster@redhat.com>
---
fs/xfs/xfs_ag.h | 32 +++++++++++++++----------
fs/xfs/xfs_btree.c | 6 +++--
fs/xfs/xfs_btree.h | 3 +++
fs/xfs/xfs_ialloc.c | 37 +++++++++++++++++++++++++----
fs/xfs/xfs_ialloc_btree.c | 60 +++++++++++++++++++++++++++++++++++++++++++++--
fs/xfs/xfs_ialloc_btree.h | 14 ++++++++++-
fs/xfs/xfs_log_recover.c | 2 ++
fs/xfs/xfs_stats.c | 1 +
fs/xfs/xfs_stats.h | 18 +++++++++++++-
fs/xfs/xfs_types.h | 2 +-
10 files changed, 150 insertions(+), 25 deletions(-)
diff --git a/fs/xfs/xfs_ag.h b/fs/xfs/xfs_ag.h
index 1cb740a..eb0840c 100644
--- a/fs/xfs/xfs_ag.h
+++ b/fs/xfs/xfs_ag.h
@@ -166,22 +166,28 @@ typedef struct xfs_agi {
__be32 agi_pad32;
__be64 agi_lsn; /* last write sequence */
+ __be32 agi_free_root; /* root of the free inode btree */
+ __be32 agi_free_level;/* levels in free inode btree */
+
/* structure must be padded to 64 bit alignment */
} xfs_agi_t;
-#define XFS_AGI_MAGICNUM 0x00000001
-#define XFS_AGI_VERSIONNUM 0x00000002
-#define XFS_AGI_SEQNO 0x00000004
-#define XFS_AGI_LENGTH 0x00000008
-#define XFS_AGI_COUNT 0x00000010
-#define XFS_AGI_ROOT 0x00000020
-#define XFS_AGI_LEVEL 0x00000040
-#define XFS_AGI_FREECOUNT 0x00000080
-#define XFS_AGI_NEWINO 0x00000100
-#define XFS_AGI_DIRINO 0x00000200
-#define XFS_AGI_UNLINKED 0x00000400
-#define XFS_AGI_NUM_BITS 11
-#define XFS_AGI_ALL_BITS ((1 << XFS_AGI_NUM_BITS) - 1)
+#define XFS_AGI_MAGICNUM (1 << 0)
+#define XFS_AGI_VERSIONNUM (1 << 1)
+#define XFS_AGI_SEQNO (1 << 2)
+#define XFS_AGI_LENGTH (1 << 3)
+#define XFS_AGI_COUNT (1 << 4)
+#define XFS_AGI_ROOT (1 << 5)
+#define XFS_AGI_LEVEL (1 << 6)
+#define XFS_AGI_FREECOUNT (1 << 7)
+#define XFS_AGI_NEWINO (1 << 8)
+#define XFS_AGI_DIRINO (1 << 9)
+#define XFS_AGI_UNLINKED (1 << 10)
+#define XFS_AGI_NUM_BITS_R1 11 /* end of the 1st agi logging region */
+#define XFS_AGI_ALL_BITS_R1 ((1 << XFS_AGI_NUM_BITS_R1) - 1)
+#define XFS_AGI_FREE_ROOT (1 << 11)
+#define XFS_AGI_FREE_LEVEL (1 << 12)
+#define XFS_AGI_NUM_BITS_R2 13
/* disk block (xfs_daddr_t) in the AG */
#define XFS_AGI_DADDR(mp) ((xfs_daddr_t)(2 << (mp)->m_sectbb_log))
diff --git a/fs/xfs/xfs_btree.c b/fs/xfs/xfs_btree.c
index 5690e10..bef20bd 100644
--- a/fs/xfs/xfs_btree.c
+++ b/fs/xfs/xfs_btree.c
@@ -45,9 +45,10 @@ kmem_zone_t *xfs_btree_cur_zone;
* Btree magic numbers.
*/
static const __uint32_t xfs_magics[2][XFS_BTNUM_MAX] = {
- { XFS_ABTB_MAGIC, XFS_ABTC_MAGIC, XFS_BMAP_MAGIC, XFS_IBT_MAGIC },
+ { XFS_ABTB_MAGIC, XFS_ABTC_MAGIC, XFS_BMAP_MAGIC, XFS_IBT_MAGIC,
+ XFS_FIBT_MAGIC },
{ XFS_ABTB_CRC_MAGIC, XFS_ABTC_CRC_MAGIC,
- XFS_BMAP_CRC_MAGIC, XFS_IBT_CRC_MAGIC }
+ XFS_BMAP_CRC_MAGIC, XFS_IBT_CRC_MAGIC, XFS_FIBT_CRC_MAGIC }
};
#define xfs_btree_magic(cur) \
xfs_magics[!!((cur)->bc_flags & XFS_BTREE_CRC_BLOCKS)][cur->bc_btnum]
@@ -1119,6 +1120,7 @@ xfs_btree_set_refs(
xfs_buf_set_ref(bp, XFS_ALLOC_BTREE_REF);
break;
case XFS_BTNUM_INO:
+ case XFS_BTNUM_FINO:
xfs_buf_set_ref(bp, XFS_INO_BTREE_REF);
break;
case XFS_BTNUM_BMAP:
diff --git a/fs/xfs/xfs_btree.h b/fs/xfs/xfs_btree.h
index 06729b6..001f030 100644
--- a/fs/xfs/xfs_btree.h
+++ b/fs/xfs/xfs_btree.h
@@ -37,6 +37,7 @@ extern kmem_zone_t *xfs_btree_cur_zone;
#define XFS_BTNUM_CNT ((xfs_btnum_t)XFS_BTNUM_CNTi)
#define XFS_BTNUM_BMAP ((xfs_btnum_t)XFS_BTNUM_BMAPi)
#define XFS_BTNUM_INO ((xfs_btnum_t)XFS_BTNUM_INOi)
+#define XFS_BTNUM_FINO ((xfs_btnum_t)XFS_BTNUM_FINOi)
/*
* Generic btree header.
@@ -147,6 +148,7 @@ do { \
case XFS_BTNUM_CNT: __XFS_BTREE_STATS_INC(abtc, stat); break; \
case XFS_BTNUM_BMAP: __XFS_BTREE_STATS_INC(bmbt, stat); break; \
case XFS_BTNUM_INO: __XFS_BTREE_STATS_INC(ibt, stat); break; \
+ case XFS_BTNUM_FINO: __XFS_BTREE_STATS_INC(fibt, stat); break; \
case XFS_BTNUM_MAX: ASSERT(0); /* fucking gcc */ ; break; \
} \
} while (0)
@@ -160,6 +162,7 @@ do { \
case XFS_BTNUM_CNT: __XFS_BTREE_STATS_ADD(abtc, stat, val); break; \
case XFS_BTNUM_BMAP: __XFS_BTREE_STATS_ADD(bmbt, stat, val); break; \
case XFS_BTNUM_INO: __XFS_BTREE_STATS_ADD(ibt, stat, val); break; \
+ case XFS_BTNUM_FINO: __XFS_BTREE_STATS_ADD(fibt, stat, val); break; \
case XFS_BTNUM_MAX: ASSERT(0); /* fucking gcc */ ; break; \
} \
} while (0)
diff --git a/fs/xfs/xfs_ialloc.c b/fs/xfs/xfs_ialloc.c
index 524aa88..19ae14a 100644
--- a/fs/xfs/xfs_ialloc.c
+++ b/fs/xfs/xfs_ialloc.c
@@ -1505,6 +1505,8 @@ xfs_ialloc_log_agi(
offsetof(xfs_agi_t, agi_newino),
offsetof(xfs_agi_t, agi_dirino),
offsetof(xfs_agi_t, agi_unlinked),
+ offsetof(xfs_agi_t, agi_free_root),
+ offsetof(xfs_agi_t, agi_free_level),
sizeof(xfs_agi_t)
};
#ifdef DEBUG
@@ -1514,14 +1516,39 @@ xfs_ialloc_log_agi(
ASSERT(agi->agi_magicnum == cpu_to_be32(XFS_AGI_MAGIC));
#endif
/*
- * Compute byte offsets for the first and last fields.
+ * The growth of the agi buffer over time now requires that we interpret
+ * the buffer as two logical regions delineated at the end of the unlinked
+ * list. This is due to the size of the hash table and its location in the
+ * middle of the agi.
+ *
+ * For example, a request to log a field before agi_unlinked and a field
+ * after agi_unlinked could cause us to log the entire hash table and use
+ * an excessive amount of log space. To avoid this behavior, log the
+ * region up through agi_unlinked in one call and the region after
+ * agi_unlinked through the end of the structure in another.
*/
- xfs_btree_offsets(fields, offsets, XFS_AGI_NUM_BITS, &first, &last);
+ xfs_trans_buf_set_type(tp, bp, XFS_BLFT_AGI_BUF);
+
/*
- * Log the allocation group inode header buffer.
+ * Compute byte offsets for the first and last fields in the first
+ * region and log agi buffer. This only logs up through agi_unlinked.
*/
- xfs_trans_buf_set_type(tp, bp, XFS_BLFT_AGI_BUF);
- xfs_trans_log_buf(tp, bp, first, last);
+ if (fields & XFS_AGI_ALL_BITS_R1) {
+ xfs_btree_offsets(fields, offsets, XFS_AGI_NUM_BITS_R1,
+ &first, &last);
+ xfs_trans_log_buf(tp, bp, first, last);
+ }
+
+ /*
+ * Mask off the bits in the first region and calculate the first and last
+ * field offsets for any bits in the second region.
+ */
+ fields &= ~XFS_AGI_ALL_BITS_R1;
+ if (fields) {
+ xfs_btree_offsets(fields, offsets, XFS_AGI_NUM_BITS_R2,
+ &first, &last);
+ xfs_trans_log_buf(tp, bp, first, last);
+ }
}
#ifdef DEBUG
diff --git a/fs/xfs/xfs_ialloc_btree.c b/fs/xfs/xfs_ialloc_btree.c
index 0cdb88b..48130e8 100644
--- a/fs/xfs/xfs_ialloc_btree.c
+++ b/fs/xfs/xfs_ialloc_btree.c
@@ -68,6 +68,21 @@ xfs_inobt_set_root(
xfs_ialloc_log_agi(cur->bc_tp, agbp, XFS_AGI_ROOT | XFS_AGI_LEVEL);
}
+STATIC void
+xfs_finobt_set_root(
+ struct xfs_btree_cur *cur,
+ union xfs_btree_ptr *nptr,
+ int inc) /* level change */
+{
+ struct xfs_buf *agbp = cur->bc_private.a.agbp;
+ struct xfs_agi *agi = XFS_BUF_TO_AGI(agbp);
+
+ agi->agi_free_root = nptr->s;
+ be32_add_cpu(&agi->agi_free_level, inc);
+ xfs_ialloc_log_agi(cur->bc_tp, agbp,
+ XFS_AGI_FREE_ROOT | XFS_AGI_FREE_LEVEL);
+}
+
STATIC int
xfs_inobt_alloc_block(
struct xfs_btree_cur *cur,
@@ -175,6 +190,17 @@ xfs_inobt_init_ptr_from_cur(
ptr->s = agi->agi_root;
}
+STATIC void
+xfs_finobt_init_ptr_from_cur(
+ struct xfs_btree_cur *cur,
+ union xfs_btree_ptr *ptr)
+{
+ struct xfs_agi *agi = XFS_BUF_TO_AGI(cur->bc_private.a.agbp);
+
+ ASSERT(cur->bc_private.a.agno == be32_to_cpu(agi->agi_seqno));
+ ptr->s = agi->agi_free_root;
+}
+
STATIC __int64_t
xfs_inobt_key_diff(
struct xfs_btree_cur *cur,
@@ -205,6 +231,7 @@ xfs_inobt_verify(
*/
switch (block->bb_magic) {
case cpu_to_be32(XFS_IBT_CRC_MAGIC):
+ case cpu_to_be32(XFS_FIBT_CRC_MAGIC):
if (!xfs_sb_version_hascrc(&mp->m_sb))
return false;
if (!uuid_equal(&block->bb_u.s.bb_uuid, &mp->m_sb.sb_uuid))
@@ -216,6 +243,7 @@ xfs_inobt_verify(
return false;
/* fall through */
case cpu_to_be32(XFS_IBT_MAGIC):
+ case cpu_to_be32(XFS_FIBT_MAGIC):
break;
default:
return 0;
@@ -317,6 +345,28 @@ static const struct xfs_btree_ops xfs_inobt_ops = {
#endif
};
+static const struct xfs_btree_ops xfs_finobt_ops = {
+ .rec_len = sizeof(xfs_inobt_rec_t),
+ .key_len = sizeof(xfs_inobt_key_t),
+
+ .dup_cursor = xfs_inobt_dup_cursor,
+ .set_root = xfs_finobt_set_root,
+ .alloc_block = xfs_inobt_alloc_block,
+ .free_block = xfs_inobt_free_block,
+ .get_minrecs = xfs_inobt_get_minrecs,
+ .get_maxrecs = xfs_inobt_get_maxrecs,
+ .init_key_from_rec = xfs_inobt_init_key_from_rec,
+ .init_rec_from_key = xfs_inobt_init_rec_from_key,
+ .init_rec_from_cur = xfs_inobt_init_rec_from_cur,
+ .init_ptr_from_cur = xfs_finobt_init_ptr_from_cur,
+ .key_diff = xfs_inobt_key_diff,
+ .buf_ops = &xfs_inobt_buf_ops,
+#if defined(DEBUG) || defined(XFS_WARN)
+ .keys_inorder = xfs_inobt_keys_inorder,
+ .recs_inorder = xfs_inobt_recs_inorder,
+#endif
+};
+
/*
* Allocate a new inode btree cursor.
*/
@@ -335,11 +385,17 @@ xfs_inobt_init_cursor(
cur->bc_tp = tp;
cur->bc_mp = mp;
- cur->bc_nlevels = be32_to_cpu(agi->agi_level);
cur->bc_btnum = btnum;
+ if (btnum == XFS_BTNUM_INO) {
+ cur->bc_nlevels = be32_to_cpu(agi->agi_level);
+ cur->bc_ops = &xfs_inobt_ops;
+ } else {
+ cur->bc_nlevels = be32_to_cpu(agi->agi_free_level);
+ cur->bc_ops = &xfs_finobt_ops;
+ }
+
cur->bc_blocklog = mp->m_sb.sb_blocklog;
- cur->bc_ops = &xfs_inobt_ops;
if (xfs_sb_version_hascrc(&mp->m_sb))
cur->bc_flags |= XFS_BTREE_CRC_BLOCKS;
diff --git a/fs/xfs/xfs_ialloc_btree.h b/fs/xfs/xfs_ialloc_btree.h
index ce7a62b..33d6dd4 100644
--- a/fs/xfs/xfs_ialloc_btree.h
+++ b/fs/xfs/xfs_ialloc_btree.h
@@ -31,6 +31,8 @@ struct xfs_mount;
*/
#define XFS_IBT_MAGIC 0x49414254 /* 'IABT' */
#define XFS_IBT_CRC_MAGIC 0x49414233 /* 'IAB3' */
+#define XFS_FIBT_MAGIC 0x46494254 /* 'FIBT' */
+#define XFS_FIBT_CRC_MAGIC 0x46494233 /* 'FIB3' */
typedef __uint64_t xfs_inofree_t;
#define XFS_INODES_PER_CHUNK (NBBY * sizeof(xfs_inofree_t))
@@ -73,7 +75,17 @@ typedef __be32 xfs_inobt_ptr_t;
* block numbers in the AG.
*/
#define XFS_IBT_BLOCK(mp) ((xfs_agblock_t)(XFS_CNT_BLOCK(mp) + 1))
-#define XFS_PREALLOC_BLOCKS(mp) ((xfs_agblock_t)(XFS_IBT_BLOCK(mp) + 1))
+#define XFS_FIBT_BLOCK(mp) ((xfs_agblock_t)(XFS_IBT_BLOCK(mp) + 1))
+
+/*
+ * The first data block of an AG depends on whether the filesystem was formatted
+ * with the finobt feature. If so, account for the finobt reserved root btree
+ * block.
+ */
+#define XFS_PREALLOC_BLOCKS(mp) \
+ (xfs_sb_version_hasfinobt(&((mp)->m_sb)) ? \
+ XFS_FIBT_BLOCK(mp) + 1 : \
+ XFS_IBT_BLOCK(mp) + 1)
/*
* Btree block header size depends on a superblock flag.
diff --git a/fs/xfs/xfs_log_recover.c b/fs/xfs/xfs_log_recover.c
index 3979749..19cde4a 100644
--- a/fs/xfs/xfs_log_recover.c
+++ b/fs/xfs/xfs_log_recover.c
@@ -2134,7 +2134,9 @@ xlog_recover_validate_buf_type(
bp->b_ops = &xfs_allocbt_buf_ops;
break;
case XFS_IBT_CRC_MAGIC:
+ case XFS_FIBT_CRC_MAGIC:
case XFS_IBT_MAGIC:
+ case XFS_FIBT_MAGIC:
bp->b_ops = &xfs_inobt_buf_ops;
break;
case XFS_BMAP_CRC_MAGIC:
diff --git a/fs/xfs/xfs_stats.c b/fs/xfs/xfs_stats.c
index ce372b7..f224038 100644
--- a/fs/xfs/xfs_stats.c
+++ b/fs/xfs/xfs_stats.c
@@ -59,6 +59,7 @@ static int xfs_stat_proc_show(struct seq_file *m, void *v)
{ "abtc2", XFSSTAT_END_ABTC_V2 },
{ "bmbt2", XFSSTAT_END_BMBT_V2 },
{ "ibt2", XFSSTAT_END_IBT_V2 },
+ { "fibt2", XFSSTAT_END_FIBT_V2 },
/* we print both series of quota information together */
{ "qm", XFSSTAT_END_QM },
};
diff --git a/fs/xfs/xfs_stats.h b/fs/xfs/xfs_stats.h
index c03ad38..c8f238b 100644
--- a/fs/xfs/xfs_stats.h
+++ b/fs/xfs/xfs_stats.h
@@ -183,7 +183,23 @@ struct xfsstats {
__uint32_t xs_ibt_2_alloc;
__uint32_t xs_ibt_2_free;
__uint32_t xs_ibt_2_moves;
-#define XFSSTAT_END_XQMSTAT (XFSSTAT_END_IBT_V2+6)
+#define XFSSTAT_END_FIBT_V2 (XFSSTAT_END_IBT_V2+15)
+ __uint32_t xs_fibt_2_lookup;
+ __uint32_t xs_fibt_2_compare;
+ __uint32_t xs_fibt_2_insrec;
+ __uint32_t xs_fibt_2_delrec;
+ __uint32_t xs_fibt_2_newroot;
+ __uint32_t xs_fibt_2_killroot;
+ __uint32_t xs_fibt_2_increment;
+ __uint32_t xs_fibt_2_decrement;
+ __uint32_t xs_fibt_2_lshift;
+ __uint32_t xs_fibt_2_rshift;
+ __uint32_t xs_fibt_2_split;
+ __uint32_t xs_fibt_2_join;
+ __uint32_t xs_fibt_2_alloc;
+ __uint32_t xs_fibt_2_free;
+ __uint32_t xs_fibt_2_moves;
+#define XFSSTAT_END_XQMSTAT (XFSSTAT_END_FIBT_V2+6)
__uint32_t xs_qm_dqreclaims;
__uint32_t xs_qm_dqreclaim_misses;
__uint32_t xs_qm_dquot_dups;
diff --git a/fs/xfs/xfs_types.h b/fs/xfs/xfs_types.h
index 82bbc34..65c6e66 100644
--- a/fs/xfs/xfs_types.h
+++ b/fs/xfs/xfs_types.h
@@ -134,7 +134,7 @@ typedef enum {
typedef enum {
XFS_BTNUM_BNOi, XFS_BTNUM_CNTi, XFS_BTNUM_BMAPi, XFS_BTNUM_INOi,
- XFS_BTNUM_MAX
+ XFS_BTNUM_FINOi, XFS_BTNUM_MAX
} xfs_btnum_t;
struct xfs_name {
--
1.8.1.4
_______________________________________________
xfs mailing list
xfs@oss.sgi.com
http://oss.sgi.com/mailman/listinfo/xfs
^ permalink raw reply related [flat|nested] 12+ messages in thread* [PATCH 04/10] xfs: update inode allocation/free transaction reservations for finobt
2013-10-09 18:06 [PATCH 00/10] xfs: introduce the free inode btree Brian Foster
` (2 preceding siblings ...)
2013-10-09 18:06 ` [PATCH 03/10] xfs: support the XFS_BTNUM_FINOBT free inode btree type Brian Foster
@ 2013-10-09 18:06 ` Brian Foster
2013-10-09 18:06 ` [PATCH 05/10] xfs: insert newly allocated inode chunks into the finobt Brian Foster
` (6 subsequent siblings)
10 siblings, 0 replies; 12+ messages in thread
From: Brian Foster @ 2013-10-09 18:06 UTC (permalink / raw)
To: xfs
Create the xfs_calc_finobt_res() helper to calculate the finobt log
reservation for inode allocation and free. Update
XFS_IALLOC_SPACE_RES() to reserve blocks for the additional finobt
insertion on inode allocation. Create XFS_IFREE_SPACE_RES() to
reserve blocks for the potential finobt record insertion on inode
free (i.e., if an inode chunk was previously fully allocated).
Signed-off-by: Brian Foster <bfoster@redhat.com>
---
fs/xfs/xfs_inode.c | 4 +++-
fs/xfs/xfs_trans_resv.c | 47 +++++++++++++++++++++++++++++++++++++++++++----
fs/xfs/xfs_trans_space.h | 7 ++++++-
3 files changed, 52 insertions(+), 6 deletions(-)
diff --git a/fs/xfs/xfs_inode.c b/fs/xfs/xfs_inode.c
index 5fce726..9b5e40b 100644
--- a/fs/xfs/xfs_inode.c
+++ b/fs/xfs/xfs_inode.c
@@ -1731,7 +1731,9 @@ xfs_inactive_ifree(
int error;
tp = xfs_trans_alloc(mp, XFS_TRANS_INACTIVE);
- error = xfs_trans_reserve(tp, &M_RES(mp)->tr_ifree, 0, 0);
+ tp->t_flags |= XFS_TRANS_RESERVE;
+ error = xfs_trans_reserve(tp, &M_RES(mp)->tr_ifree,
+ XFS_IFREE_SPACE_RES(mp), 0);
if (error) {
ASSERT(XFS_FORCED_SHUTDOWN(mp));
xfs_trans_cancel(tp, XFS_TRANS_RELEASE_LOG_RES);
diff --git a/fs/xfs/xfs_trans_resv.c b/fs/xfs/xfs_trans_resv.c
index a65a3cc..ecd20d0 100644
--- a/fs/xfs/xfs_trans_resv.c
+++ b/fs/xfs/xfs_trans_resv.c
@@ -106,6 +106,37 @@ xfs_calc_inode_res(
}
/*
+ * The free inode btree is a conditional feature and the log reservation
+ * requirements differ slightly from that of the traditional inode allocation
+ * btree. The finobt tracks records for inode chunks with at least one free inode.
+ * Therefore, a record can be removed from the tree for an inode allocation or
+ * free and the associated merge reservation is unconditional. This also covers
+ * the possibility of a split on record insertion.
+ *
+ * the free inode btree: max depth * block size
+ * the free inode btree entry: block size
+ *
+ * TODO: is the modify res really necessary? covered by the merge/split res?
+ * This seems to be the pattern of ifree, but not create_resv_alloc. Why?
+ */
+STATIC uint
+xfs_calc_finobt_res(
+ struct xfs_mount *mp,
+ int modify)
+{
+ uint res;
+
+ if (!xfs_sb_version_hasfinobt(&mp->m_sb))
+ return 0;
+
+ res = xfs_calc_buf_res(mp->m_in_maxlevels, XFS_FSB_TO_B(mp, 1));
+ if (modify)
+ res += (uint)XFS_FSB_TO_B(mp, 1);
+
+ return res;
+}
+
+/*
* Various log reservation values.
*
* These are based on the size of the file system block because that is what
@@ -275,6 +306,7 @@ xfs_calc_remove_reservation(
* the superblock for the nlink flag: sector size
* the directory btree: (max depth + v2) * dir block size
* the directory inode's bmap btree: (max depth + v2) * block size
+ * the finobt
*/
STATIC uint
xfs_calc_create_resv_modify(
@@ -283,7 +315,8 @@ xfs_calc_create_resv_modify(
return xfs_calc_inode_res(mp, 2) +
xfs_calc_buf_res(1, mp->m_sb.sb_sectsize) +
(uint)XFS_FSB_TO_B(mp, 1) +
- xfs_calc_buf_res(XFS_DIROP_LOG_COUNT(mp), XFS_FSB_TO_B(mp, 1));
+ xfs_calc_buf_res(XFS_DIROP_LOG_COUNT(mp), XFS_FSB_TO_B(mp, 1)) +
+ xfs_calc_finobt_res(mp, 1);
}
/*
@@ -293,6 +326,7 @@ xfs_calc_create_resv_modify(
* the inode blocks allocated: XFS_IALLOC_BLOCKS * blocksize
* the inode btree: max depth * blocksize
* the allocation btrees: 2 trees * (max depth - 1) * block size
+ * the finobt
*/
STATIC uint
xfs_calc_create_resv_alloc(
@@ -303,7 +337,8 @@ xfs_calc_create_resv_alloc(
xfs_calc_buf_res(XFS_IALLOC_BLOCKS(mp), XFS_FSB_TO_B(mp, 1)) +
xfs_calc_buf_res(mp->m_in_maxlevels, XFS_FSB_TO_B(mp, 1)) +
xfs_calc_buf_res(XFS_ALLOCFREE_LOG_COUNT(mp, 1),
- XFS_FSB_TO_B(mp, 1));
+ XFS_FSB_TO_B(mp, 1)) +
+ xfs_calc_finobt_res(mp, 0);
}
STATIC uint
@@ -321,6 +356,7 @@ __xfs_calc_create_reservation(
* the superblock for the nlink flag: sector size
* the inode btree: max depth * blocksize
* the allocation btrees: 2 trees * (max depth - 1) * block size
+ * the finobt
*/
STATIC uint
xfs_calc_icreate_resv_alloc(
@@ -330,7 +366,8 @@ xfs_calc_icreate_resv_alloc(
mp->m_sb.sb_sectsize +
xfs_calc_buf_res(mp->m_in_maxlevels, XFS_FSB_TO_B(mp, 1)) +
xfs_calc_buf_res(XFS_ALLOCFREE_LOG_COUNT(mp, 1),
- XFS_FSB_TO_B(mp, 1));
+ XFS_FSB_TO_B(mp, 1)) +
+ xfs_calc_finobt_res(mp, 0);
}
STATIC uint
@@ -384,6 +421,7 @@ xfs_calc_symlink_reservation(
* the on disk inode before ours in the agi hash list: inode cluster size
* the inode btree: max depth * blocksize
* the allocation btrees: 2 trees * (max depth - 1) * block size
+ * the finobt
*/
STATIC uint
xfs_calc_ifree_reservation(
@@ -399,7 +437,8 @@ xfs_calc_ifree_reservation(
xfs_calc_buf_res(2 + XFS_IALLOC_BLOCKS(mp) +
mp->m_in_maxlevels, 0) +
xfs_calc_buf_res(XFS_ALLOCFREE_LOG_COUNT(mp, 1),
- XFS_FSB_TO_B(mp, 1));
+ XFS_FSB_TO_B(mp, 1)) +
+ xfs_calc_finobt_res(mp, 1);
}
/*
diff --git a/fs/xfs/xfs_trans_space.h b/fs/xfs/xfs_trans_space.h
index 7d2c920..a7d1721e 100644
--- a/fs/xfs/xfs_trans_space.h
+++ b/fs/xfs/xfs_trans_space.h
@@ -47,7 +47,9 @@
#define XFS_DIRREMOVE_SPACE_RES(mp) \
XFS_DAREMOVE_SPACE_RES(mp, XFS_DATA_FORK)
#define XFS_IALLOC_SPACE_RES(mp) \
- (XFS_IALLOC_BLOCKS(mp) + (mp)->m_in_maxlevels - 1)
+ (XFS_IALLOC_BLOCKS(mp) + \
+ (xfs_sb_version_hasfinobt(&mp->m_sb) ? 2 : 1 * \
+ ((mp)->m_in_maxlevels - 1)))
/*
* Space reservation values for various transactions.
@@ -82,5 +84,8 @@
(XFS_DIRREMOVE_SPACE_RES(mp) + XFS_DIRENTER_SPACE_RES(mp,nl))
#define XFS_SYMLINK_SPACE_RES(mp,nl,b) \
(XFS_IALLOC_SPACE_RES(mp) + XFS_DIRENTER_SPACE_RES(mp,nl) + (b))
+#define XFS_IFREE_SPACE_RES(mp) \
+ (xfs_sb_version_hasfinobt(&mp->m_sb) ? (mp)->m_in_maxlevels : 0)
+
#endif /* __XFS_TRANS_SPACE_H__ */
--
1.8.1.4
_______________________________________________
xfs mailing list
xfs@oss.sgi.com
http://oss.sgi.com/mailman/listinfo/xfs
^ permalink raw reply related [flat|nested] 12+ messages in thread* [PATCH 05/10] xfs: insert newly allocated inode chunks into the finobt
2013-10-09 18:06 [PATCH 00/10] xfs: introduce the free inode btree Brian Foster
` (3 preceding siblings ...)
2013-10-09 18:06 ` [PATCH 04/10] xfs: update inode allocation/free transaction reservations for finobt Brian Foster
@ 2013-10-09 18:06 ` Brian Foster
2013-10-09 18:06 ` [PATCH 06/10] xfs: use and update the finobt on inode allocation Brian Foster
` (5 subsequent siblings)
10 siblings, 0 replies; 12+ messages in thread
From: Brian Foster @ 2013-10-09 18:06 UTC (permalink / raw)
To: xfs
A newly allocated inode chunk, by definition, has at least one
free inode, so a record is always inserted into the finobt.
Create the xfs_inobt_insert() helper from existing code to insert
a record in an inobt based on the provided BTNUM. Update
xfs_ialloc_ag_alloc() to invoke the helper for the existing
XFS_BTNUM_INO tree and XFS_BTNUM_FINO tree, if enabled.
Signed-off-by: Brian Foster <bfoster@redhat.com>
---
fs/xfs/xfs_ialloc.c | 93 ++++++++++++++++++++++++++++++++++++++++-------------
1 file changed, 70 insertions(+), 23 deletions(-)
diff --git a/fs/xfs/xfs_ialloc.c b/fs/xfs/xfs_ialloc.c
index 19ae14a..4ca7b8b 100644
--- a/fs/xfs/xfs_ialloc.c
+++ b/fs/xfs/xfs_ialloc.c
@@ -111,6 +111,66 @@ xfs_inobt_get_rec(
}
/*
+ * Insert a single inobt record. Cursor must already point to desired location.
+ */
+STATIC int
+xfs_inobt_insert_rec(
+ struct xfs_btree_cur *cur,
+ __int32_t freecount,
+ xfs_inofree_t free,
+ int *stat)
+{
+ cur->bc_rec.i.ir_freecount = freecount;
+ cur->bc_rec.i.ir_free = free;
+ return xfs_btree_insert(cur, stat);
+}
+
+/*
+ * Insert records describing a newly allocated inode chunk into the inobt.
+ */
+STATIC int
+xfs_inobt_insert(
+ struct xfs_mount *mp,
+ struct xfs_trans *tp,
+ struct xfs_buf *agbp,
+ xfs_agino_t newino,
+ xfs_agino_t newlen,
+ xfs_btnum_t btnum)
+{
+ struct xfs_btree_cur *cur;
+ struct xfs_agi *agi = XFS_BUF_TO_AGI(agbp);
+ xfs_agnumber_t agno = be32_to_cpu(agi->agi_seqno);
+ xfs_agino_t thisino;
+ int i;
+ int error;
+
+ cur = xfs_inobt_init_cursor(mp, tp, agbp, agno, btnum);
+
+ for (thisino = newino;
+ thisino < newino + newlen;
+ thisino += XFS_INODES_PER_CHUNK) {
+ error = xfs_inobt_lookup(cur, thisino, XFS_LOOKUP_EQ, &i);
+ if (error) {
+ xfs_btree_del_cursor(cur, XFS_BTREE_ERROR);
+ return error;
+ }
+ ASSERT(i == 0);
+
+ error = xfs_inobt_insert_rec(cur, XFS_INODES_PER_CHUNK,
+ XFS_INOBT_ALL_FREE, &i);
+ if (error) {
+ xfs_btree_del_cursor(cur, XFS_BTREE_ERROR);
+ return error;
+ }
+ ASSERT(i == 1);
+ }
+
+ xfs_btree_del_cursor(cur, XFS_BTREE_NOERROR);
+
+ return 0;
+}
+
+/*
* Verify that the number of free inodes in the AGI is correct.
*/
#ifdef DEBUG
@@ -309,13 +369,10 @@ xfs_ialloc_ag_alloc(
{
xfs_agi_t *agi; /* allocation group header */
xfs_alloc_arg_t args; /* allocation argument structure */
- xfs_btree_cur_t *cur; /* inode btree cursor */
xfs_agnumber_t agno;
int error;
- int i;
xfs_agino_t newino; /* new first inode's number */
xfs_agino_t newlen; /* new number of inodes */
- xfs_agino_t thisino; /* current inode number, for loop */
int isaligned = 0; /* inode allocation at stripe unit */
/* boundary */
struct xfs_perag *pag;
@@ -453,29 +510,19 @@ xfs_ialloc_ag_alloc(
agi->agi_newino = cpu_to_be32(newino);
/*
- * Insert records describing the new inode chunk into the btree.
+ * Insert records describing the new inode chunk into the btrees.
*/
- cur = xfs_inobt_init_cursor(args.mp, tp, agbp, agno, XFS_BTNUM_INO);
- for (thisino = newino;
- thisino < newino + newlen;
- thisino += XFS_INODES_PER_CHUNK) {
- cur->bc_rec.i.ir_startino = thisino;
- cur->bc_rec.i.ir_freecount = XFS_INODES_PER_CHUNK;
- cur->bc_rec.i.ir_free = XFS_INOBT_ALL_FREE;
- error = xfs_btree_lookup(cur, XFS_LOOKUP_EQ, &i);
- if (error) {
- xfs_btree_del_cursor(cur, XFS_BTREE_ERROR);
- return error;
- }
- ASSERT(i == 0);
- error = xfs_btree_insert(cur, &i);
- if (error) {
- xfs_btree_del_cursor(cur, XFS_BTREE_ERROR);
+ error = xfs_inobt_insert(args.mp, tp, agbp, newino, newlen,
+ XFS_BTNUM_INO);
+ if (error)
+ return error;
+
+ if (xfs_sb_version_hasfinobt(&args.mp->m_sb)) {
+ error = xfs_inobt_insert(args.mp, tp, agbp, newino, newlen,
+ XFS_BTNUM_FINO);
+ if (error)
return error;
- }
- ASSERT(i == 1);
}
- xfs_btree_del_cursor(cur, XFS_BTREE_NOERROR);
/*
* Log allocation group header fields
*/
--
1.8.1.4
_______________________________________________
xfs mailing list
xfs@oss.sgi.com
http://oss.sgi.com/mailman/listinfo/xfs
^ permalink raw reply related [flat|nested] 12+ messages in thread* [PATCH 06/10] xfs: use and update the finobt on inode allocation
2013-10-09 18:06 [PATCH 00/10] xfs: introduce the free inode btree Brian Foster
` (4 preceding siblings ...)
2013-10-09 18:06 ` [PATCH 05/10] xfs: insert newly allocated inode chunks into the finobt Brian Foster
@ 2013-10-09 18:06 ` Brian Foster
2013-10-09 18:06 ` [PATCH 07/10] xfs: refactor xfs_difree() inobt bits into xfs_difree_inobt() helper Brian Foster
` (4 subsequent siblings)
10 siblings, 0 replies; 12+ messages in thread
From: Brian Foster @ 2013-10-09 18:06 UTC (permalink / raw)
To: xfs
Replace xfs_dialloc_ag() with an implementation that looks for a
record in the finobt. The finobt only tracks records with at least
one free inode. This eliminates the need for the intra-ag scan in
the original algorithm. Once the inode is allocated, update the
finobt appropriately (possibly removing the record) as well as the
inobt.
Move the original xfs_dialloc_ag() algorithm to
xfs_dialloc_ag_slow() and fall back as such if finobt support is
not enabled.
Signed-off-by: Brian Foster <bfoster@redhat.com>
---
fs/xfs/xfs_ialloc.c | 211 +++++++++++++++++++++++++++++++++++++++++++++++++++-
1 file changed, 210 insertions(+), 1 deletion(-)
diff --git a/fs/xfs/xfs_ialloc.c b/fs/xfs/xfs_ialloc.c
index 4ca7b8b..fd9ba6c 100644
--- a/fs/xfs/xfs_ialloc.c
+++ b/fs/xfs/xfs_ialloc.c
@@ -722,7 +722,7 @@ xfs_ialloc_get_rec(
* available.
*/
STATIC int
-xfs_dialloc_ag(
+xfs_dialloc_ag_slow(
struct xfs_trans *tp,
struct xfs_buf *agbp,
xfs_ino_t parent,
@@ -980,6 +980,215 @@ error0:
return error;
}
+STATIC int
+xfs_dialloc_ag(
+ struct xfs_trans *tp,
+ struct xfs_buf *agbp,
+ xfs_ino_t parent,
+ xfs_ino_t *inop)
+{
+ struct xfs_mount *mp = tp->t_mountp;
+ struct xfs_agi *agi = XFS_BUF_TO_AGI(agbp);
+ xfs_agnumber_t agno = be32_to_cpu(agi->agi_seqno);
+ xfs_agnumber_t pagno = XFS_INO_TO_AGNO(mp, parent);
+ xfs_agino_t pagino = XFS_INO_TO_AGINO(mp, parent);
+ struct xfs_perag *pag;
+ struct xfs_btree_cur *cur;
+ struct xfs_btree_cur *tcur;
+ struct xfs_inobt_rec_incore rec;
+ struct xfs_inobt_rec_incore trec;
+ xfs_ino_t ino;
+ int error;
+ int offset;
+ int i, j;
+
+ if (!xfs_sb_version_hasfinobt(&mp->m_sb))
+ return xfs_dialloc_ag_slow(tp, agbp, parent, inop);
+
+ pag = xfs_perag_get(mp, agno);
+
+ /*
+ * If pagino is 0 (this is the root inode allocation) use newino.
+ * This must work because we've just allocated some.
+ */
+ if (!pagino)
+ pagino = be32_to_cpu(agi->agi_newino);
+
+ cur = xfs_inobt_init_cursor(mp, tp, agbp, agno, XFS_BTNUM_FINO);
+
+ error = xfs_check_agi_freecount(cur, agi);
+ if (error)
+ goto error_cur;
+
+ if (agno == pagno) {
+ /*
+ * We're in the same AG as the parent inode so allocate the
+ * closest inode to the parent.
+ */
+ error = xfs_inobt_lookup(cur, pagino, XFS_LOOKUP_LE, &i);
+ if (error)
+ goto error_cur;
+ if (i == 1) {
+ error = xfs_inobt_get_rec(cur, &rec, &i);
+ if (error)
+ goto error_cur;
+ XFS_WANT_CORRUPTED_GOTO(i == 1, error_cur);
+
+ /*
+ * See if we've landed in the parent inode record. The
+ * finobt only tracks chunks with at least one free
+ * inode, so record existence is enough.
+ */
+ if (pagino >= rec.ir_startino &&
+ pagino < (rec.ir_startino + XFS_INODES_PER_CHUNK))
+ goto alloc_inode;
+ }
+
+ error = xfs_btree_dup_cursor(cur, &tcur);
+ if (error)
+ goto error_cur;
+
+ error = xfs_inobt_lookup(tcur, pagino, XFS_LOOKUP_GE, &j);
+ if (error)
+ goto error_tcur;
+ if (j == 1) {
+ error = xfs_inobt_get_rec(tcur, &trec, &j);
+ if (error)
+ goto error_tcur;
+ XFS_WANT_CORRUPTED_GOTO(j == 1, error_tcur);
+ }
+
+ if (i == 1 && j == 1) {
+ if ((pagino - rec.ir_startino + XFS_INODES_PER_CHUNK - 1) >
+ (trec.ir_startino - pagino)) {
+ rec = trec;
+ xfs_btree_del_cursor(cur, XFS_BTREE_NOERROR);
+ cur = tcur;
+ } else {
+ xfs_btree_del_cursor(tcur, XFS_BTREE_NOERROR);
+ }
+ } else if (j == 1) {
+ rec = trec;
+ xfs_btree_del_cursor(cur, XFS_BTREE_NOERROR);
+ cur = tcur;
+ } else {
+ xfs_btree_del_cursor(tcur, XFS_BTREE_NOERROR);
+ }
+ } else {
+ /*
+ * Different AG from the parent inode. Check the record for the
+ * most recently allocated inode.
+ */
+ if (agi->agi_newino != cpu_to_be32(NULLAGINO)) {
+ error = xfs_inobt_lookup(cur, agi->agi_newino,
+ XFS_LOOKUP_EQ, &i);
+ if (error)
+ goto error_cur;
+ if (i == 1) {
+ error = xfs_inobt_get_rec(cur, &rec, &i);
+ if (error)
+ goto error_cur;
+ XFS_WANT_CORRUPTED_GOTO(i == 1, error_cur);
+ goto alloc_inode;
+ }
+ }
+
+ /*
+ * Allocate the first inode available in the AG.
+ */
+ error = xfs_inobt_lookup(cur, 0, XFS_LOOKUP_GE, &i);
+ if (error)
+ goto error_cur;
+ XFS_WANT_CORRUPTED_GOTO(i == 1, error_cur);
+
+ error = xfs_inobt_get_rec(cur, &rec, &i);
+ if (error)
+ goto error_cur;
+ XFS_WANT_CORRUPTED_GOTO(i == 1, error_cur);
+ }
+
+alloc_inode:
+ offset = xfs_lowbit64(rec.ir_free);
+ ASSERT(offset >= 0);
+ ASSERT(offset < XFS_INODES_PER_CHUNK);
+ ASSERT((XFS_AGINO_TO_OFFSET(mp, rec.ir_startino) %
+ XFS_INODES_PER_CHUNK) == 0);
+ ino = XFS_AGINO_TO_INO(mp, agno, rec.ir_startino + offset);
+
+ /*
+ * Modify or remove the finobt record.
+ */
+ rec.ir_free &= ~XFS_INOBT_MASK(offset);
+ rec.ir_freecount--;
+ if (rec.ir_freecount)
+ error = xfs_inobt_update(cur, &rec);
+ else
+ error = xfs_btree_delete(cur, &i);
+ if (error)
+ goto error_cur;
+
+ /*
+ * Lookup and modify the equivalent record in the inobt.
+ */
+ tcur = xfs_inobt_init_cursor(mp, tp, agbp, agno, XFS_BTNUM_INO);
+
+ error = xfs_check_agi_freecount(tcur, agi);
+ if (error)
+ goto error_tcur;
+
+ error = xfs_inobt_lookup(tcur, rec.ir_startino, XFS_LOOKUP_EQ, &i);
+ if (error)
+ goto error_tcur;
+ XFS_WANT_CORRUPTED_GOTO(i == 1, error_tcur);
+
+ error = xfs_inobt_get_rec(tcur, &trec, &i);
+ if (error)
+ goto error_tcur;
+ XFS_WANT_CORRUPTED_GOTO(i == 1, error_tcur);
+ ASSERT((XFS_AGINO_TO_OFFSET(mp, trec.ir_startino) %
+ XFS_INODES_PER_CHUNK) == 0);
+
+ trec.ir_free &= ~XFS_INOBT_MASK(offset);
+ trec.ir_freecount--;
+
+ XFS_WANT_CORRUPTED_GOTO((rec.ir_free == trec.ir_free) &&
+ (rec.ir_freecount == trec.ir_freecount),
+ error_tcur);
+
+ error = xfs_inobt_update(tcur, &trec);
+ if (error)
+ goto error_tcur;
+
+ /*
+ * Update the perag and superblock.
+ */
+ be32_add_cpu(&agi->agi_freecount, -1);
+ xfs_ialloc_log_agi(tp, agbp, XFS_AGI_FREECOUNT);
+ pag->pagi_freecount--;
+
+ xfs_trans_mod_sb(tp, XFS_TRANS_SB_IFREE, -1);
+
+ error = xfs_check_agi_freecount(tcur, agi);
+ if (error)
+ goto error_tcur;
+ error = xfs_check_agi_freecount(cur, agi);
+ if (error)
+ goto error_tcur;
+
+ xfs_btree_del_cursor(tcur, XFS_BTREE_NOERROR);
+ xfs_btree_del_cursor(cur, XFS_BTREE_NOERROR);
+ xfs_perag_put(pag);
+ *inop = ino;
+ return 0;
+
+error_tcur:
+ xfs_btree_del_cursor(tcur, XFS_BTREE_ERROR);
+error_cur:
+ xfs_btree_del_cursor(cur, XFS_BTREE_ERROR);
+ xfs_perag_put(pag);
+ return error;
+}
+
/*
* Allocate an inode on disk.
*
--
1.8.1.4
_______________________________________________
xfs mailing list
xfs@oss.sgi.com
http://oss.sgi.com/mailman/listinfo/xfs
^ permalink raw reply related [flat|nested] 12+ messages in thread* [PATCH 07/10] xfs: refactor xfs_difree() inobt bits into xfs_difree_inobt() helper
2013-10-09 18:06 [PATCH 00/10] xfs: introduce the free inode btree Brian Foster
` (5 preceding siblings ...)
2013-10-09 18:06 ` [PATCH 06/10] xfs: use and update the finobt on inode allocation Brian Foster
@ 2013-10-09 18:06 ` Brian Foster
2013-10-09 18:06 ` [PATCH 08/10] xfs: update the finobt on inode free Brian Foster
` (3 subsequent siblings)
10 siblings, 0 replies; 12+ messages in thread
From: Brian Foster @ 2013-10-09 18:06 UTC (permalink / raw)
To: xfs
Refactor xfs_difree() in preparation for the finobt. xfs_difree()
performs the validity checks against the ag and reads the agi
header. The work of physically updating the inode allocation btree
is pushed down into the new xfs_difree_inobt() helper.
Signed-off-by: Brian Foster <bfoster@redhat.com>
---
fs/xfs/xfs_ialloc.c | 160 +++++++++++++++++++++++++++++++---------------------
1 file changed, 96 insertions(+), 64 deletions(-)
diff --git a/fs/xfs/xfs_ialloc.c b/fs/xfs/xfs_ialloc.c
index fd9ba6c..7cffc24 100644
--- a/fs/xfs/xfs_ialloc.c
+++ b/fs/xfs/xfs_ialloc.c
@@ -1348,74 +1348,31 @@ out_error:
return XFS_ERROR(error);
}
-/*
- * Free disk inode. Carefully avoids touching the incore inode, all
- * manipulations incore are the caller's responsibility.
- * The on-disk inode is not changed by this operation, only the
- * btree (free inode mask) is changed.
- */
-int
-xfs_difree(
- xfs_trans_t *tp, /* transaction pointer */
- xfs_ino_t inode, /* inode to be freed */
- xfs_bmap_free_t *flist, /* extents to free */
- int *delete, /* set if inode cluster was deleted */
- xfs_ino_t *first_ino) /* first inode in deleted cluster */
+STATIC int
+xfs_difree_inobt(
+ struct xfs_mount *mp,
+ struct xfs_trans *tp,
+ struct xfs_buf *agbp,
+ xfs_agino_t agino,
+ struct xfs_bmap_free *flist,
+ int *delete,
+ xfs_ino_t *first_ino,
+ struct xfs_inobt_rec_incore *orec)
{
- /* REFERENCED */
- xfs_agblock_t agbno; /* block number containing inode */
- xfs_buf_t *agbp; /* buffer containing allocation group header */
- xfs_agino_t agino; /* inode number relative to allocation group */
- xfs_agnumber_t agno; /* allocation group number */
- xfs_agi_t *agi; /* allocation group header */
- xfs_btree_cur_t *cur; /* inode btree cursor */
- int error; /* error return value */
- int i; /* result code */
- int ilen; /* inodes in an inode cluster */
- xfs_mount_t *mp; /* mount structure for filesystem */
- int off; /* offset of inode in inode chunk */
- xfs_inobt_rec_incore_t rec; /* btree record */
- struct xfs_perag *pag;
-
- mp = tp->t_mountp;
+ struct xfs_agi *agi = XFS_BUF_TO_AGI(agbp);
+ xfs_agnumber_t agno = be32_to_cpu(agi->agi_seqno);
+ xfs_agblock_t agbno = XFS_AGINO_TO_AGBNO(mp, agino);
+ struct xfs_perag *pag;
+ struct xfs_btree_cur *cur;
+ struct xfs_inobt_rec_incore rec;
+ int ilen;
+ int error;
+ int i;
+ int off;
- /*
- * Break up inode number into its components.
- */
- agno = XFS_INO_TO_AGNO(mp, inode);
- if (agno >= mp->m_sb.sb_agcount) {
- xfs_warn(mp, "%s: agno >= mp->m_sb.sb_agcount (%d >= %d).",
- __func__, agno, mp->m_sb.sb_agcount);
- ASSERT(0);
- return XFS_ERROR(EINVAL);
- }
- agino = XFS_INO_TO_AGINO(mp, inode);
- if (inode != XFS_AGINO_TO_INO(mp, agno, agino)) {
- xfs_warn(mp, "%s: inode != XFS_AGINO_TO_INO() (%llu != %llu).",
- __func__, (unsigned long long)inode,
- (unsigned long long)XFS_AGINO_TO_INO(mp, agno, agino));
- ASSERT(0);
- return XFS_ERROR(EINVAL);
- }
- agbno = XFS_AGINO_TO_AGBNO(mp, agino);
- if (agbno >= mp->m_sb.sb_agblocks) {
- xfs_warn(mp, "%s: agbno >= mp->m_sb.sb_agblocks (%d >= %d).",
- __func__, agbno, mp->m_sb.sb_agblocks);
- ASSERT(0);
- return XFS_ERROR(EINVAL);
- }
- /*
- * Get the allocation group header.
- */
- error = xfs_ialloc_read_agi(mp, tp, agno, &agbp);
- if (error) {
- xfs_warn(mp, "%s: xfs_ialloc_read_agi() returned error %d.",
- __func__, error);
- return error;
- }
- agi = XFS_BUF_TO_AGI(agbp);
ASSERT(agi->agi_magicnum == cpu_to_be32(XFS_AGI_MAGIC));
ASSERT(agbno < be32_to_cpu(agi->agi_length));
+
/*
* Initialize the cursor.
*/
@@ -1511,6 +1468,7 @@ xfs_difree(
if (error)
goto error0;
+ *orec = rec;
xfs_btree_del_cursor(cur, XFS_BTREE_NOERROR);
return 0;
@@ -1519,6 +1477,80 @@ error0:
return error;
}
+/*
+ * Free disk inode. Carefully avoids touching the incore inode, all
+ * manipulations incore are the caller's responsibility.
+ * The on-disk inode is not changed by this operation, only the
+ * btree (free inode mask) is changed.
+ */
+int
+xfs_difree(
+ xfs_trans_t *tp, /* transaction pointer */
+ xfs_ino_t inode, /* inode to be freed */
+ xfs_bmap_free_t *flist, /* extents to free */
+ int *delete, /* set if inode cluster was deleted */
+ xfs_ino_t *first_ino) /* first inode in deleted cluster */
+{
+ /* REFERENCED */
+ xfs_agblock_t agbno; /* block number containing inode */
+ xfs_buf_t *agbp; /* buffer containing allocation group header */
+ xfs_agino_t agino; /* inode number relative to allocation group */
+ xfs_agnumber_t agno; /* allocation group number */
+ int error; /* error return value */
+ xfs_mount_t *mp; /* mount structure for filesystem */
+ xfs_inobt_rec_incore_t rec; /* btree record */
+
+ mp = tp->t_mountp;
+
+ /*
+ * Break up inode number into its components.
+ */
+ agno = XFS_INO_TO_AGNO(mp, inode);
+ if (agno >= mp->m_sb.sb_agcount) {
+ xfs_warn(mp, "%s: agno >= mp->m_sb.sb_agcount (%d >= %d).",
+ __func__, agno, mp->m_sb.sb_agcount);
+ ASSERT(0);
+ return XFS_ERROR(EINVAL);
+ }
+ agino = XFS_INO_TO_AGINO(mp, inode);
+ if (inode != XFS_AGINO_TO_INO(mp, agno, agino)) {
+ xfs_warn(mp, "%s: inode != XFS_AGINO_TO_INO() (%llu != %llu).",
+ __func__, (unsigned long long)inode,
+ (unsigned long long)XFS_AGINO_TO_INO(mp, agno, agino));
+ ASSERT(0);
+ return XFS_ERROR(EINVAL);
+ }
+ agbno = XFS_AGINO_TO_AGBNO(mp, agino);
+ if (agbno >= mp->m_sb.sb_agblocks) {
+ xfs_warn(mp, "%s: agbno >= mp->m_sb.sb_agblocks (%d >= %d).",
+ __func__, agbno, mp->m_sb.sb_agblocks);
+ ASSERT(0);
+ return XFS_ERROR(EINVAL);
+ }
+ /*
+ * Get the allocation group header.
+ */
+ error = xfs_ialloc_read_agi(mp, tp, agno, &agbp);
+ if (error) {
+ xfs_warn(mp, "%s: xfs_ialloc_read_agi() returned error %d.",
+ __func__, error);
+ return error;
+ }
+
+ /*
+ * Fix up the inode allocation btree.
+ */
+ error = xfs_difree_inobt(mp, tp, agbp, agino, flist, delete, first_ino,
+ &rec);
+ if (error)
+ goto error0;
+
+ return 0;
+
+error0:
+ return error;
+}
+
STATIC int
xfs_imap_lookup(
struct xfs_mount *mp,
--
1.8.1.4
_______________________________________________
xfs mailing list
xfs@oss.sgi.com
http://oss.sgi.com/mailman/listinfo/xfs
^ permalink raw reply related [flat|nested] 12+ messages in thread* [PATCH 08/10] xfs: update the finobt on inode free
2013-10-09 18:06 [PATCH 00/10] xfs: introduce the free inode btree Brian Foster
` (6 preceding siblings ...)
2013-10-09 18:06 ` [PATCH 07/10] xfs: refactor xfs_difree() inobt bits into xfs_difree_inobt() helper Brian Foster
@ 2013-10-09 18:06 ` Brian Foster
2013-10-09 18:06 ` [PATCH 09/10] xfs: add finobt support to growfs Brian Foster
` (2 subsequent siblings)
10 siblings, 0 replies; 12+ messages in thread
From: Brian Foster @ 2013-10-09 18:06 UTC (permalink / raw)
To: xfs
An inode free operation can have several effects on the finobt. If
all inodes have been freed and the chunk deallocated, we remove the
finobt record. If the inode chunk was previously full, we must
insert a new record based on the existing inobt record. Otherwise,
we modify the record in place.
Create the xfs_ifree_finobt() function to identify the potential
scenarios and update the finobt appropriately.
Signed-off-by: Brian Foster <bfoster@redhat.com>
---
fs/xfs/xfs_ialloc.c | 109 ++++++++++++++++++++++++++++++++++++++++++++++++++++
1 file changed, 109 insertions(+)
diff --git a/fs/xfs/xfs_ialloc.c b/fs/xfs/xfs_ialloc.c
index 7cffc24..0b0136a 100644
--- a/fs/xfs/xfs_ialloc.c
+++ b/fs/xfs/xfs_ialloc.c
@@ -1478,6 +1478,106 @@ error0:
}
/*
+ * Free an inode in the free inode btree.
+ */
+STATIC int
+xfs_difree_finobt(
+ struct xfs_mount *mp,
+ struct xfs_trans *tp,
+ struct xfs_buf *agbp,
+ xfs_agino_t agino,
+ struct xfs_inobt_rec_incore *ibtrec) /* inobt record */
+{
+ struct xfs_agi *agi = XFS_BUF_TO_AGI(agbp);
+ xfs_agnumber_t agno = be32_to_cpu(agi->agi_seqno);
+ struct xfs_btree_cur *cur;
+ struct xfs_inobt_rec_incore rec;
+ int offset = agino - ibtrec->ir_startino;
+ int error;
+ int i;
+
+ cur = xfs_inobt_init_cursor(mp, tp, agbp, agno, XFS_BTNUM_FINO);
+
+ error = xfs_inobt_lookup(cur, ibtrec->ir_startino, XFS_LOOKUP_EQ, &i);
+ if (error)
+ goto error;
+ if (i == 0) {
+ /*
+ * If the record does not exist in the finobt, we must have just
+ * freed an inode in a previously fully allocated chunk. If not,
+ * something is out of sync.
+ */
+ XFS_WANT_CORRUPTED_GOTO(ibtrec->ir_freecount == 1, error);
+
+ error = xfs_inobt_insert_rec(cur, ibtrec->ir_freecount,
+ ibtrec->ir_free, &i);
+ if (error)
+ goto error;
+ ASSERT(i == 1);
+
+ goto out;
+ }
+
+ /*
+ * Read and update the existing record.
+ */
+ error = xfs_inobt_get_rec(cur, &rec, &i);
+ if (error)
+ goto error;
+ XFS_WANT_CORRUPTED_GOTO(i == 1, error);
+
+ rec.ir_free |= XFS_INOBT_MASK(offset);
+ rec.ir_freecount++;
+
+ XFS_WANT_CORRUPTED_GOTO((rec.ir_free == ibtrec->ir_free) &&
+ (rec.ir_freecount == ibtrec->ir_freecount),
+ error);
+
+ /*
+ * The content of inobt records should always match between the inobt
+ * and finobt. The lifecycle of records in the finobt is different from
+ * the inobt in that the finobt only tracks records with at least one
+ * free inode. This is to optimize lookup for inode allocation purposes.
+ * The following checks determine whether to update the existing record or
+ * remove it entirely.
+ */
+
+ if (rec.ir_freecount == XFS_IALLOC_INODES(mp) &&
+ !(mp->m_flags & XFS_MOUNT_IKEEP)) {
+ /*
+ * If all inodes are free and we're in !ikeep mode, the entire
+ * inode chunk has been deallocated. Remove the record from the
+ * finobt.
+ */
+ error = xfs_btree_delete(cur, &i);
+ if (error)
+ goto error;
+ ASSERT(i == 1);
+ } else {
+ /*
+ * The existing finobt record was modified and has a combination
+ * of allocated and free inodes or is completely free and ikeep
+ * is enabled. Update the record.
+ */
+ error = xfs_inobt_update(cur, &rec);
+ if (error)
+ goto error;
+ }
+
+out:
+ error = xfs_check_agi_freecount(cur, agi);
+ if (error)
+ goto error;
+
+ xfs_btree_del_cursor(cur, XFS_BTREE_NOERROR);
+ return 0;
+
+error:
+ xfs_btree_del_cursor(cur, XFS_BTREE_ERROR);
+ return error;
+}
+
+/*
* Free disk inode. Carefully avoids touching the incore inode, all
* manipulations incore are the caller's responsibility.
* The on-disk inode is not changed by this operation, only the
@@ -1545,6 +1645,15 @@ xfs_difree(
if (error)
goto error0;
+ /*
+ * Fix up the free inode btree.
+ */
+ if (xfs_sb_version_hasfinobt(&mp->m_sb)) {
+ error = xfs_difree_finobt(mp, tp, agbp, agino, &rec);
+ if (error)
+ goto error0;
+ }
+
return 0;
error0:
--
1.8.1.4
_______________________________________________
xfs mailing list
xfs@oss.sgi.com
http://oss.sgi.com/mailman/listinfo/xfs
^ permalink raw reply related [flat|nested] 12+ messages in thread* [PATCH 09/10] xfs: add finobt support to growfs
2013-10-09 18:06 [PATCH 00/10] xfs: introduce the free inode btree Brian Foster
` (7 preceding siblings ...)
2013-10-09 18:06 ` [PATCH 08/10] xfs: update the finobt on inode free Brian Foster
@ 2013-10-09 18:06 ` Brian Foster
2013-10-09 18:06 ` [PATCH 10/10] xfs: enable the finobt feature on v5 superblocks Brian Foster
[not found] ` <5261633E.8050504@gmail.com>
10 siblings, 0 replies; 12+ messages in thread
From: Brian Foster @ 2013-10-09 18:06 UTC (permalink / raw)
To: xfs
Add finobt support to growfs. Initialize the agi root/level fields
and the root finobt block.
Signed-off-by: Brian Foster <bfoster@redhat.com>
Reviewed-by: Dave Chinner <david@fromorbit.com>
---
fs/xfs/xfs_fsops.c | 32 ++++++++++++++++++++++++++++++++
1 file changed, 32 insertions(+)
diff --git a/fs/xfs/xfs_fsops.c b/fs/xfs/xfs_fsops.c
index fdae4ec5..af04352 100644
--- a/fs/xfs/xfs_fsops.c
+++ b/fs/xfs/xfs_fsops.c
@@ -311,6 +311,10 @@ xfs_growfs_data_private(
agi->agi_dirino = cpu_to_be32(NULLAGINO);
if (xfs_sb_version_hascrc(&mp->m_sb))
uuid_copy(&agi->agi_uuid, &mp->m_sb.sb_uuid);
+ if (xfs_sb_version_hasfinobt(&mp->m_sb)) {
+ agi->agi_free_root = cpu_to_be32(XFS_FIBT_BLOCK(mp));
+ agi->agi_free_level = cpu_to_be32(1);
+ }
for (bucket = 0; bucket < XFS_AGI_UNLINKED_BUCKETS; bucket++)
agi->agi_unlinked[bucket] = cpu_to_be32(NULLAGINO);
@@ -402,6 +406,34 @@ xfs_growfs_data_private(
xfs_buf_relse(bp);
if (error)
goto error0;
+
+ /*
+ * FINO btree root block
+ */
+ if (xfs_sb_version_hasfinobt(&mp->m_sb)) {
+ bp = xfs_growfs_get_hdr_buf(mp,
+ XFS_AGB_TO_DADDR(mp, agno, XFS_FIBT_BLOCK(mp)),
+ BTOBB(mp->m_sb.sb_blocksize), 0,
+ &xfs_inobt_buf_ops);
+ if (!bp) {
+ error = ENOMEM;
+ goto error0;
+ }
+
+ if (xfs_sb_version_hascrc(&mp->m_sb))
+ xfs_btree_init_block(mp, bp, XFS_FIBT_CRC_MAGIC,
+ 0, 0, agno,
+ XFS_BTREE_CRC_BLOCKS);
+ else
+ xfs_btree_init_block(mp, bp, XFS_FIBT_MAGIC, 0,
+ 0, agno, 0);
+
+ error = xfs_bwrite(bp);
+ xfs_buf_relse(bp);
+ if (error)
+ goto error0;
+ }
+
}
xfs_trans_agblocks_delta(tp, nfree);
/*
--
1.8.1.4
_______________________________________________
xfs mailing list
xfs@oss.sgi.com
http://oss.sgi.com/mailman/listinfo/xfs
^ permalink raw reply related [flat|nested] 12+ messages in thread* [PATCH 10/10] xfs: enable the finobt feature on v5 superblocks
2013-10-09 18:06 [PATCH 00/10] xfs: introduce the free inode btree Brian Foster
` (8 preceding siblings ...)
2013-10-09 18:06 ` [PATCH 09/10] xfs: add finobt support to growfs Brian Foster
@ 2013-10-09 18:06 ` Brian Foster
[not found] ` <5261633E.8050504@gmail.com>
10 siblings, 0 replies; 12+ messages in thread
From: Brian Foster @ 2013-10-09 18:06 UTC (permalink / raw)
To: xfs
Add the finobt feature bit to the list of known features. As of
this point, the kernel code knows how to mount and manage both
finobt and non-finobt formatted filesystems.
Signed-off-by: Brian Foster <bfoster@redhat.com>
---
fs/xfs/xfs_sb.h | 3 ++-
1 file changed, 2 insertions(+), 1 deletion(-)
diff --git a/fs/xfs/xfs_sb.h b/fs/xfs/xfs_sb.h
index 0013bac..c48d95d 100644
--- a/fs/xfs/xfs_sb.h
+++ b/fs/xfs/xfs_sb.h
@@ -586,7 +586,8 @@ xfs_sb_has_compat_feature(
}
#define XFS_SB_FEAT_RO_COMPAT_FINOBT (1 << 0) /* free inode btree */
-#define XFS_SB_FEAT_RO_COMPAT_ALL 0
+#define XFS_SB_FEAT_RO_COMPAT_ALL \
+ (XFS_SB_FEAT_RO_COMPAT_FINOBT)
#define XFS_SB_FEAT_RO_COMPAT_UNKNOWN ~XFS_SB_FEAT_RO_COMPAT_ALL
static inline bool
xfs_sb_has_ro_compat_feature(
--
1.8.1.4
_______________________________________________
xfs mailing list
xfs@oss.sgi.com
http://oss.sgi.com/mailman/listinfo/xfs
^ permalink raw reply related [flat|nested] 12+ messages in thread[parent not found: <5261633E.8050504@gmail.com>]