diff options
| -rw-r--r-- | fs/xfs/linux-2.6/kmem.c | 16 | ||||
| -rw-r--r-- | fs/xfs/linux-2.6/kmem.h | 3 | ||||
| -rw-r--r-- | fs/xfs/quota/xfs_qm.c | 13 | ||||
| -rw-r--r-- | fs/xfs/xfs_iget.c | 17 | ||||
| -rw-r--r-- | fs/xfs/xfs_itable.c | 16 |
5 files changed, 34 insertions, 31 deletions
diff --git a/fs/xfs/linux-2.6/kmem.c b/fs/xfs/linux-2.6/kmem.c index f77fe5c..80b9340 100644 --- a/fs/xfs/linux-2.6/kmem.c +++ b/fs/xfs/linux-2.6/kmem.c @@ -68,6 +68,22 @@ kmem_zalloc(size_t size, unsigned int __nocast flags) return ptr; } +void * +kmem_zalloc_greedy(size_t *size, size_t minsize, size_t maxsize, + unsigned int __nocast flags) +{ + void *ptr; + + while (!(ptr = kmem_zalloc(maxsize, flags))) { + if ((maxsize >>= 1) <= minsize) { + maxsize = minsize; + flags = KM_SLEEP; + } + } + *size = maxsize; + return ptr; +} + void kmem_free(void *ptr, size_t size) { diff --git a/fs/xfs/linux-2.6/kmem.h b/fs/xfs/linux-2.6/kmem.h index 6d24274..9ebabdf 100644 --- a/fs/xfs/linux-2.6/kmem.h +++ b/fs/xfs/linux-2.6/kmem.h @@ -55,8 +55,9 @@ kmem_flags_convert(unsigned int __nocast flags) } extern void *kmem_alloc(size_t, unsigned int __nocast); -extern void *kmem_realloc(void *, size_t, size_t, unsigned int __nocast); extern void *kmem_zalloc(size_t, unsigned int __nocast); +extern void *kmem_zalloc_greedy(size_t *, size_t, size_t, unsigned int __nocast); +extern void *kmem_realloc(void *, size_t, size_t, unsigned int __nocast); extern void kmem_free(void *, size_t); /* diff --git a/fs/xfs/quota/xfs_qm.c b/fs/xfs/quota/xfs_qm.c index 3f86c7c..8b2c6cf 100644 --- a/fs/xfs/quota/xfs_qm.c +++ b/fs/xfs/quota/xfs_qm.c @@ -112,17 +112,16 @@ xfs_Gqm_init(void) { xfs_dqhash_t *udqhash, *gdqhash; xfs_qm_t *xqm; - uint i, hsize, flags = KM_SLEEP | KM_MAYFAIL | KM_LARGE; + uint i, hsize; /* * Initialize the dquot hash tables. */ - hsize = XFS_QM_HASHSIZE_HIGH; - while (!(udqhash = kmem_zalloc(hsize * sizeof(*udqhash), flags))) { - if ((hsize >>= 1) <= XFS_QM_HASHSIZE_LOW) - flags = KM_SLEEP; - } - gdqhash = kmem_zalloc(hsize * sizeof(*gdqhash), KM_SLEEP | KM_LARGE); + udqhash = kmem_zalloc_greedy(&hsize, + XFS_QM_HASHSIZE_LOW, XFS_QM_HASHSIZE_HIGH, + KM_SLEEP | KM_MAYFAIL | KM_LARGE); + gdqhash = kmem_zalloc(hsize, KM_SLEEP | KM_LARGE); + hsize /= sizeof(xfs_dqhash_t); ndquot = hsize << 8; xqm = kmem_zalloc(sizeof(xfs_qm_t), KM_SLEEP); diff --git a/fs/xfs/xfs_iget.c b/fs/xfs/xfs_iget.c index 30eebc2..e304ab0 100644 --- a/fs/xfs/xfs_iget.c +++ b/fs/xfs/xfs_iget.c @@ -50,7 +50,7 @@ void xfs_ihash_init(xfs_mount_t *mp) { __uint64_t icount; - uint i, flags = KM_SLEEP | KM_MAYFAIL | KM_LARGE; + uint i; if (!mp->m_ihsize) { icount = mp->m_maxicount ? mp->m_maxicount : @@ -61,14 +61,13 @@ xfs_ihash_init(xfs_mount_t *mp) (64 * NBPP) / sizeof(xfs_ihash_t)); } - while (!(mp->m_ihash = (xfs_ihash_t *)kmem_zalloc(mp->m_ihsize * - sizeof(xfs_ihash_t), flags))) { - if ((mp->m_ihsize >>= 1) <= NBPP) - flags = KM_SLEEP; - } - for (i = 0; i < mp->m_ihsize; i++) { + mp->m_ihash = kmem_zalloc_greedy(&mp->m_ihsize, + NBPC * sizeof(xfs_ihash_t), + mp->m_ihsize * sizeof(xfs_ihash_t), + KM_SLEEP | KM_MAYFAIL | KM_LARGE); + mp->m_ihsize /= sizeof(xfs_ihash_t); + for (i = 0; i < mp->m_ihsize; i++) rwlock_init(&(mp->m_ihash[i].ih_lock)); - } } /* @@ -77,7 +76,7 @@ xfs_ihash_init(xfs_mount_t *mp) void xfs_ihash_free(xfs_mount_t *mp) { - kmem_free(mp->m_ihash, mp->m_ihsize*sizeof(xfs_ihash_t)); + kmem_free(mp->m_ihash, mp->m_ihsize * sizeof(xfs_ihash_t)); mp->m_ihash = NULL; } diff --git a/fs/xfs/xfs_itable.c b/fs/xfs/xfs_itable.c index 6126899..0fbbd7b 100644 --- a/fs/xfs/xfs_itable.c +++ b/fs/xfs/xfs_itable.c @@ -326,7 +326,6 @@ xfs_bulkstat( int i; /* loop index */ int icount; /* count of inodes good in irbuf */ int irbsize; /* size of irec buffer in bytes */ - unsigned int kmflags; /* flags for allocating irec buffer */ xfs_ino_t ino; /* inode number (filesystem) */ xfs_inobt_rec_incore_t *irbp; /* current irec buffer pointer */ xfs_inobt_rec_incore_t *irbuf; /* start of irec buffer */ @@ -371,19 +370,8 @@ xfs_bulkstat( (XFS_INODE_CLUSTER_SIZE(mp) >> mp->m_sb.sb_inodelog); nimask = ~(nicluster - 1); nbcluster = nicluster >> mp->m_sb.sb_inopblog; - /* - * Allocate a local buffer for inode cluster btree records. - * This caps our maximum readahead window (so don't be stingy) - * but we must handle the case where we can't get a contiguous - * multi-page buffer, so we drop back toward pagesize; the end - * case we ensure succeeds, via appropriate allocation flags. - */ - irbsize = NBPP * 4; - kmflags = KM_SLEEP | KM_MAYFAIL; - while (!(irbuf = kmem_alloc(irbsize, kmflags))) { - if ((irbsize >>= 1) <= NBPP) - kmflags = KM_SLEEP; - } + irbuf = kmem_zalloc_greedy(&irbsize, NBPC, NBPC * 4, + KM_SLEEP | KM_MAYFAIL | KM_LARGE); nirbuf = irbsize / sizeof(*irbuf); /* |
