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| author | Timur Tabi <timur@freescale.com> | 2008-04-14 10:43:38 -0500 |
|---|---|---|
| committer | Kumar Gala <galak@kernel.crashing.org> | 2008-04-17 09:50:38 -0500 |
| commit | 3a2f020c5a93a88aa09adbe56dde43463324930a (patch) | |
| tree | e178a2fa9406fed6f6783e3f095732fea28b91c9 /arch/powerpc/lib/rheap.c | |
| parent | 998c610363b26f3793ad8121eeb3a749b1034824 (diff) | |
| download | blackbird-op-linux-3a2f020c5a93a88aa09adbe56dde43463324930a.tar.gz blackbird-op-linux-3a2f020c5a93a88aa09adbe56dde43463324930a.zip | |
[POWERPC] Make rheap safe for spinlocks
The rheap allocation function, rh_alloc, could call kmalloc with GFP_KERNEL.
This can sleep, which means you couldn't hold a spinlock while called rh_alloc.
Change all kmalloc calls to use GFP_ATOMIC so that it won't sleep. This is
safe because only small blocks are allocated.
Signed-off-by: Timur Tabi <timur@freescale.com>
Signed-off-by: Kumar Gala <galak@kernel.crashing.org>
Diffstat (limited to 'arch/powerpc/lib/rheap.c')
| -rw-r--r-- | arch/powerpc/lib/rheap.c | 4 |
1 files changed, 2 insertions, 2 deletions
diff --git a/arch/powerpc/lib/rheap.c b/arch/powerpc/lib/rheap.c index 22c3b4f53de7..29b2941cada0 100644 --- a/arch/powerpc/lib/rheap.c +++ b/arch/powerpc/lib/rheap.c @@ -54,7 +54,7 @@ static int grow(rh_info_t * info, int max_blocks) new_blocks = max_blocks - info->max_blocks; - block = kmalloc(sizeof(rh_block_t) * max_blocks, GFP_KERNEL); + block = kmalloc(sizeof(rh_block_t) * max_blocks, GFP_ATOMIC); if (block == NULL) return -ENOMEM; @@ -258,7 +258,7 @@ rh_info_t *rh_create(unsigned int alignment) if ((alignment & (alignment - 1)) != 0) return ERR_PTR(-EINVAL); - info = kmalloc(sizeof(*info), GFP_KERNEL); + info = kmalloc(sizeof(*info), GFP_ATOMIC); if (info == NULL) return ERR_PTR(-ENOMEM); |
