From: Dave Chinner <dchinner@xxxxxxxxxx>
Callers have referenced perags but they don't pass it into
xfs_imap() so it takes it's own reference. Fix that so we can change
inode allocation over to using active references.
Signed-off-by: Dave Chinner <dchinner@xxxxxxxxxx>
---
fs/xfs/libxfs/xfs_ialloc.c | 43 +++++++++++++-------------------------
fs/xfs/libxfs/xfs_ialloc.h | 3 ++-
fs/xfs/scrub/common.c | 13 ++++++++----
fs/xfs/xfs_icache.c | 2 +-
fs/xfs/xfs_inode.c | 9 ++++----
5 files changed, 32 insertions(+), 38 deletions(-)
diff --git a/fs/xfs/libxfs/xfs_ialloc.c b/fs/xfs/libxfs/xfs_ialloc.c
index 6cdfd64bc56b..5782aa74c688 100644
--- a/fs/xfs/libxfs/xfs_ialloc.c
+++ b/fs/xfs/libxfs/xfs_ialloc.c
@@ -2200,15 +2200,15 @@ xfs_difree(
STATIC int
xfs_imap_lookup(
- struct xfs_mount *mp,
- struct xfs_trans *tp,
struct xfs_perag *pag,
+ struct xfs_trans *tp,
xfs_agino_t agino,
xfs_agblock_t agbno,
xfs_agblock_t *chunk_agbno,
xfs_agblock_t *offset_agbno,
int flags)
{
+ struct xfs_mount *mp = pag->pag_mount;
struct xfs_inobt_rec_incore rec;
struct xfs_btree_cur *cur;
struct xfs_buf *agbp;
@@ -2263,12 +2263,13 @@ xfs_imap_lookup(
*/
int
xfs_imap(
- struct xfs_mount *mp, /* file system mount structure */
+ struct xfs_perag *pag,
struct xfs_trans *tp, /* transaction pointer */
xfs_ino_t ino, /* inode to locate */
struct xfs_imap *imap, /* location map structure */
uint flags) /* flags for inode btree lookup */
{
+ struct xfs_mount *mp = pag->pag_mount;
xfs_agblock_t agbno; /* block number of inode in the alloc group */
xfs_agino_t agino; /* inode number within alloc group */
xfs_agblock_t chunk_agbno; /* first block in inode chunk */
@@ -2276,17 +2277,15 @@ xfs_imap(
int error; /* error code */
int offset; /* index of inode in its buffer */
xfs_agblock_t offset_agbno; /* blks from chunk start to inode */
- struct xfs_perag *pag;
ASSERT(ino != NULLFSINO);
/*
* Split up the inode number into its parts.
*/
- pag = xfs_perag_get(mp, XFS_INO_TO_AGNO(mp, ino));
agino = XFS_INO_TO_AGINO(mp, ino);
agbno = XFS_AGINO_TO_AGBNO(mp, agino);
- if (!pag || agbno >= mp->m_sb.sb_agblocks ||
+ if (agbno >= mp->m_sb.sb_agblocks ||
ino != XFS_AGINO_TO_INO(mp, pag->pag_agno, agino)) {
error = -EINVAL;
#ifdef DEBUG
@@ -2295,20 +2294,14 @@ xfs_imap(
* as they can be invalid without implying corruption.
*/
if (flags & XFS_IGET_UNTRUSTED)
- goto out_drop;
- if (!pag) {
- xfs_alert(mp,
- "%s: agno (%d) >= mp->m_sb.sb_agcount (%d)",
- __func__, XFS_INO_TO_AGNO(mp, ino),
- mp->m_sb.sb_agcount);
- }
+ return error;
if (agbno >= mp->m_sb.sb_agblocks) {
xfs_alert(mp,
"%s: agbno (0x%llx) >= mp->m_sb.sb_agblocks (0x%lx)",
__func__, (unsigned long long)agbno,
(unsigned long)mp->m_sb.sb_agblocks);
}
- if (pag && ino != XFS_AGINO_TO_INO(mp, pag->pag_agno, agino)) {
+ if (ino != XFS_AGINO_TO_INO(mp, pag->pag_agno, agino)) {
xfs_alert(mp,
"%s: ino (0x%llx) != XFS_AGINO_TO_INO() (0x%llx)",
__func__, ino,
@@ -2316,7 +2309,7 @@ xfs_imap(
}
xfs_stack_trace();
#endif /* DEBUG */
- goto out_drop;
+ return error;
}
/*
@@ -2327,10 +2320,10 @@ xfs_imap(
* in all cases where an untrusted inode number is passed.
*/
if (flags & XFS_IGET_UNTRUSTED) {
- error = xfs_imap_lookup(mp, tp, pag, agino, agbno,
+ error = xfs_imap_lookup(pag, tp, agino, agbno,
&chunk_agbno, &offset_agbno, flags);
if (error)
- goto out_drop;
+ return error;
goto out_map;
}
@@ -2346,8 +2339,7 @@ xfs_imap(
imap->im_len = XFS_FSB_TO_BB(mp, 1);
imap->im_boffset = (unsigned short)(offset <<
mp->m_sb.sb_inodelog);
- error = 0;
- goto out_drop;
+ return 0;
}
/*
@@ -2359,10 +2351,10 @@ xfs_imap(
offset_agbno = agbno & M_IGEO(mp)->inoalign_mask;
chunk_agbno = agbno - offset_agbno;
} else {
- error = xfs_imap_lookup(mp, tp, pag, agino, agbno,
+ error = xfs_imap_lookup(pag, tp, agino, agbno,
&chunk_agbno, &offset_agbno, flags);
if (error)
- goto out_drop;
+ return error;
}
out_map:
@@ -2390,14 +2382,9 @@ xfs_imap(
__func__, (unsigned long long) imap->im_blkno,
(unsigned long long) imap->im_len,
XFS_FSB_TO_BB(mp, mp->m_sb.sb_dblocks));
- error = -EINVAL;
- goto out_drop;
+ return -EINVAL;
}
- error = 0;
-out_drop:
- if (pag)
- xfs_perag_put(pag);
- return error;
+ return 0;
}
/*
diff --git a/fs/xfs/libxfs/xfs_ialloc.h b/fs/xfs/libxfs/xfs_ialloc.h
index 9bbbca6ac4ed..4cfce2eebe7e 100644
--- a/fs/xfs/libxfs/xfs_ialloc.h
+++ b/fs/xfs/libxfs/xfs_ialloc.h
@@ -12,6 +12,7 @@ struct xfs_imap;
struct xfs_mount;
struct xfs_trans;
struct xfs_btree_cur;
+struct xfs_perag;
/* Move inodes in clusters of this size */
#define XFS_INODE_BIG_CLUSTER_SIZE 8192
@@ -47,7 +48,7 @@ int xfs_difree(struct xfs_trans *tp, struct xfs_perag *pag,
*/
int
xfs_imap(
- struct xfs_mount *mp, /* file system mount structure */
+ struct xfs_perag *pag,
struct xfs_trans *tp, /* transaction pointer */
xfs_ino_t ino, /* inode to locate */
struct xfs_imap *imap, /* location map structure */
diff --git a/fs/xfs/scrub/common.c b/fs/xfs/scrub/common.c
index 9bbbf20f401b..70aebc12734a 100644
--- a/fs/xfs/scrub/common.c
+++ b/fs/xfs/scrub/common.c
@@ -644,6 +644,7 @@ xchk_get_inode(
{
struct xfs_imap imap;
struct xfs_mount *mp = sc->mp;
+ struct xfs_perag *pag;
struct xfs_inode *ip_in = XFS_I(file_inode(sc->file));
struct xfs_inode *ip = NULL;
int error;
@@ -679,10 +680,14 @@ xchk_get_inode(
* Otherwise, we really couldn't find it so tell userspace
* that it no longer exists.
*/
- error = xfs_imap(sc->mp, sc->tp, sc->sm->sm_ino, &imap,
- XFS_IGET_UNTRUSTED | XFS_IGET_DONTCACHE);
- if (error)
- return -ENOENT;
+ pag = xfs_perag_get(mp, XFS_INO_TO_AGNO(mp, sc->sm->sm_ino));
+ if (pag) {
+ error = xfs_imap(pag, sc->tp, sc->sm->sm_ino, &imap,
+ XFS_IGET_UNTRUSTED | XFS_IGET_DONTCACHE);
+ xfs_perag_put(pag);
+ if (error)
+ return -ENOENT;
+ }
error = -EFSCORRUPTED;
fallthrough;
default:
diff --git a/fs/xfs/xfs_icache.c b/fs/xfs/xfs_icache.c
index 1ca6cfeccbb8..d5e594fa56c3 100644
--- a/fs/xfs/xfs_icache.c
+++ b/fs/xfs/xfs_icache.c
@@ -579,7 +579,7 @@ xfs_iget_cache_miss(
if (!ip)
return -ENOMEM;
- error = xfs_imap(mp, tp, ip->i_ino, &ip->i_imap, flags);
+ error = xfs_imap(pag, tp, ip->i_ino, &ip->i_imap, flags);
if (error)
goto out_destroy;
diff --git a/fs/xfs/xfs_inode.c b/fs/xfs/xfs_inode.c
index 0a2424ef38a3..0ec0075f529f 100644
--- a/fs/xfs/xfs_inode.c
+++ b/fs/xfs/xfs_inode.c
@@ -2207,8 +2207,8 @@ xfs_iunlink(
/* Return the imap, dinode pointer, and buffer for an inode. */
STATIC int
xfs_iunlink_map_ino(
+ struct xfs_perag *pag,
struct xfs_trans *tp,
- xfs_agnumber_t agno,
xfs_agino_t agino,
struct xfs_imap *imap,
struct xfs_dinode **dipp,
@@ -2218,7 +2218,8 @@ xfs_iunlink_map_ino(
int error;
imap->im_blkno = 0;
- error = xfs_imap(mp, tp, XFS_AGINO_TO_INO(mp, agno, agino), imap, 0);
+ error = xfs_imap(pag, tp, XFS_AGINO_TO_INO(mp, pag->pag_agno, agino),
+ imap, 0);
if (error) {
xfs_warn(mp, "%s: xfs_imap returned error %d.",
__func__, error);
@@ -2267,7 +2268,7 @@ xfs_iunlink_map_prev(
/* See if our backref cache can find it faster. */
*agino = xfs_iunlink_lookup_backref(pag, target_agino);
if (*agino != NULLAGINO) {
- error = xfs_iunlink_map_ino(tp, pag->pag_agno, *agino, imap,
+ error = xfs_iunlink_map_ino(pag, tp, *agino, imap,
dipp, bpp);
if (error)
return error;
@@ -2295,7 +2296,7 @@ xfs_iunlink_map_prev(
xfs_trans_brelse(tp, *bpp);
*agino = next_agino;
- error = xfs_iunlink_map_ino(tp, pag->pag_agno, next_agino, imap,
+ error = xfs_iunlink_map_ino(pag, tp, next_agino, imap,
dipp, bpp);
if (error)
return error;
--
2.35.1
