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| author | Vlad Apostolov <vapo@sgi.com> | 2006-09-28 03:06:10 +0200 |
|---|---|---|
| committer | Tim Shimmin <tes@sgi.com> | 2006-09-28 03:06:10 +0200 |
| commit | 6216ff18839bf302805f67c93e8bc344387c513b (patch) | |
| tree | 3b94cb694ef8277ab0006cb2363dadfe7c348124 /fs/xfs | |
| parent | [XFS] Really fix use after free in xfs_iunpin. (diff) | |
| download | linux-6216ff18839bf302805f67c93e8bc344387c513b.tar.xz linux-6216ff18839bf302805f67c93e8bc344387c513b.zip | |
[XFS] pv 956240, author: nathans, rv: vapo - Minor fixes in
kmem_zalloc_greedy()
SGI-PV: 956240
SGI-Modid: xfs-linux-melb:xfs-kern:26983a
Signed-off-by: Vlad Apostolov <vapo@sgi.com>
Signed-off-by: Tim Shimmin <tes@sgi.com>
Diffstat (limited to 'fs/xfs')
| -rw-r--r-- | fs/xfs/linux-2.6/kmem.c | 17 |
1 files changed, 11 insertions, 6 deletions
diff --git a/fs/xfs/linux-2.6/kmem.c b/fs/xfs/linux-2.6/kmem.c index 80b9340488e5..d59737589815 100644 --- a/fs/xfs/linux-2.6/kmem.c +++ b/fs/xfs/linux-2.6/kmem.c @@ -72,15 +72,20 @@ void * kmem_zalloc_greedy(size_t *size, size_t minsize, size_t maxsize, unsigned int __nocast flags) { - void *ptr; + void *ptr; + size_t kmsize = maxsize; + unsigned int kmflags = (flags & ~KM_SLEEP) | KM_NOSLEEP; - while (!(ptr = kmem_zalloc(maxsize, flags))) { - if ((maxsize >>= 1) <= minsize) { - maxsize = minsize; - flags = KM_SLEEP; + while (!(ptr = kmem_zalloc(kmsize, kmflags))) { + if ((kmsize <= minsize) && (flags & KM_NOSLEEP)) + break; + if ((kmsize >>= 1) <= minsize) { + kmsize = minsize; + kmflags = flags; } } - *size = maxsize; + if (ptr) + *size = kmsize; return ptr; } |