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authorNathan Scott <nathans@sgi.com>2006-09-28 11:03:05 +1000
committerTim Shimmin <tes@sgi.com>2006-09-28 11:03:05 +1000
commitefb8ad7e9431a430a75d44288614cf6047ff4baa (patch)
treecbebf7d8bf1b5f25235756c0aa7ff610d4cb4055
parent3f89243c5b987dd55f8eec6fd54be05887d69bc6 (diff)
downloadop-kernel-dev-efb8ad7e9431a430a75d44288614cf6047ff4baa.zip
op-kernel-dev-efb8ad7e9431a430a75d44288614cf6047ff4baa.tar.gz
[XFS] Add a debug flag for allocations which are known to be larger than
one page. SGI-PV: 955302 SGI-Modid: xfs-linux-melb:xfs-kern:26800a Signed-off-by: Nathan Scott <nathans@sgi.com> Signed-off-by: Tim Shimmin <tes@sgi.com>
-rw-r--r--fs/xfs/linux-2.6/kmem.c8
-rw-r--r--fs/xfs/linux-2.6/kmem.h3
-rw-r--r--fs/xfs/linux-2.6/xfs_buf.c2
-rw-r--r--fs/xfs/quota/xfs_qm.c6
-rw-r--r--fs/xfs/support/ktrace.c2
-rw-r--r--fs/xfs/xfs_iget.c4
-rw-r--r--fs/xfs/xfs_log.c2
7 files changed, 18 insertions, 9 deletions
diff --git a/fs/xfs/linux-2.6/kmem.c b/fs/xfs/linux-2.6/kmem.c
index aba7fcf..f77fe5c 100644
--- a/fs/xfs/linux-2.6/kmem.c
+++ b/fs/xfs/linux-2.6/kmem.c
@@ -34,6 +34,14 @@ kmem_alloc(size_t size, unsigned int __nocast flags)
gfp_t lflags = kmem_flags_convert(flags);
void *ptr;
+#ifdef DEBUG
+ if (unlikely(!(flags & KM_LARGE) && (size > PAGE_SIZE))) {
+ printk(KERN_WARNING "Large %s attempt, size=%ld\n",
+ __FUNCTION__, (long)size);
+ dump_stack();
+ }
+#endif
+
do {
if (size < MAX_SLAB_SIZE || retries > MAX_VMALLOCS)
ptr = kmalloc(size, lflags);
diff --git a/fs/xfs/linux-2.6/kmem.h b/fs/xfs/linux-2.6/kmem.h
index 0e8293c..6d24274 100644
--- a/fs/xfs/linux-2.6/kmem.h
+++ b/fs/xfs/linux-2.6/kmem.h
@@ -30,6 +30,7 @@
#define KM_NOSLEEP 0x0002u
#define KM_NOFS 0x0004u
#define KM_MAYFAIL 0x0008u
+#define KM_LARGE 0x0010u
/*
* We use a special process flag to avoid recursive callbacks into
@@ -41,7 +42,7 @@ kmem_flags_convert(unsigned int __nocast flags)
{
gfp_t lflags;
- BUG_ON(flags & ~(KM_SLEEP|KM_NOSLEEP|KM_NOFS|KM_MAYFAIL));
+ BUG_ON(flags & ~(KM_SLEEP|KM_NOSLEEP|KM_NOFS|KM_MAYFAIL|KM_LARGE));
if (flags & KM_NOSLEEP) {
lflags = GFP_ATOMIC | __GFP_NOWARN;
diff --git a/fs/xfs/linux-2.6/xfs_buf.c b/fs/xfs/linux-2.6/xfs_buf.c
index 247adce..58b6599 100644
--- a/fs/xfs/linux-2.6/xfs_buf.c
+++ b/fs/xfs/linux-2.6/xfs_buf.c
@@ -768,7 +768,7 @@ xfs_buf_get_noaddr(
_xfs_buf_initialize(bp, target, 0, len, 0);
try_again:
- data = kmem_alloc(malloc_len, KM_SLEEP | KM_MAYFAIL);
+ data = kmem_alloc(malloc_len, KM_SLEEP | KM_MAYFAIL | KM_LARGE);
if (unlikely(data == NULL))
goto fail_free_buf;
diff --git a/fs/xfs/quota/xfs_qm.c b/fs/xfs/quota/xfs_qm.c
index e23e455..3f86c7c 100644
--- a/fs/xfs/quota/xfs_qm.c
+++ b/fs/xfs/quota/xfs_qm.c
@@ -112,17 +112,17 @@ xfs_Gqm_init(void)
{
xfs_dqhash_t *udqhash, *gdqhash;
xfs_qm_t *xqm;
- uint i, hsize, flags = KM_SLEEP | KM_MAYFAIL;
+ uint i, hsize, flags = KM_SLEEP | KM_MAYFAIL | KM_LARGE;
/*
* Initialize the dquot hash tables.
*/
hsize = XFS_QM_HASHSIZE_HIGH;
- while (!(udqhash = kmem_zalloc(hsize * sizeof(xfs_dqhash_t), flags))) {
+ while (!(udqhash = kmem_zalloc(hsize * sizeof(*udqhash), flags))) {
if ((hsize >>= 1) <= XFS_QM_HASHSIZE_LOW)
flags = KM_SLEEP;
}
- gdqhash = kmem_zalloc(hsize * sizeof(xfs_dqhash_t), KM_SLEEP);
+ gdqhash = kmem_zalloc(hsize * sizeof(*gdqhash), KM_SLEEP | KM_LARGE);
ndquot = hsize << 8;
xqm = kmem_zalloc(sizeof(xfs_qm_t), KM_SLEEP);
diff --git a/fs/xfs/support/ktrace.c b/fs/xfs/support/ktrace.c
index addf5a7..5cf2e86 100644
--- a/fs/xfs/support/ktrace.c
+++ b/fs/xfs/support/ktrace.c
@@ -75,7 +75,7 @@ ktrace_alloc(int nentries, unsigned int __nocast sleep)
sleep);
} else {
ktep = (ktrace_entry_t*)kmem_zalloc((nentries * sizeof(*ktep)),
- sleep);
+ sleep | KM_LARGE);
}
if (ktep == NULL) {
diff --git a/fs/xfs/xfs_iget.c b/fs/xfs/xfs_iget.c
index 109000a..30eebc2 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;
+ uint i, flags = KM_SLEEP | KM_MAYFAIL | KM_LARGE;
if (!mp->m_ihsize) {
icount = mp->m_maxicount ? mp->m_maxicount :
@@ -95,7 +95,7 @@ xfs_chash_init(xfs_mount_t *mp)
mp->m_chsize = min_t(uint, mp->m_chsize, mp->m_ihsize);
mp->m_chash = (xfs_chash_t *)kmem_zalloc(mp->m_chsize
* sizeof(xfs_chash_t),
- KM_SLEEP);
+ KM_SLEEP | KM_LARGE);
for (i = 0; i < mp->m_chsize; i++) {
spinlock_init(&mp->m_chash[i].ch_lock,"xfshash");
}
diff --git a/fs/xfs/xfs_log.c b/fs/xfs/xfs_log.c
index 2a46919..ac99978 100644
--- a/fs/xfs/xfs_log.c
+++ b/fs/xfs/xfs_log.c
@@ -1196,7 +1196,7 @@ xlog_alloc_log(xfs_mount_t *mp,
kmem_zalloc(sizeof(xlog_in_core_t), KM_SLEEP);
iclog = *iclogp;
iclog->hic_data = (xlog_in_core_2_t *)
- kmem_zalloc(iclogsize, KM_SLEEP);
+ kmem_zalloc(iclogsize, KM_SLEEP | KM_LARGE);
iclog->ic_prev = prev_iclog;
prev_iclog = iclog;
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