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| author | Uladzislau Rezki (Sony) <urezki@gmail.com> | 2019-11-30 17:54:37 -0800 |
|---|---|---|
| committer | Linus Torvalds <torvalds@linux-foundation.org> | 2019-12-01 12:59:05 -0800 |
| commit | f07116d77b5b9a4fecdcb470fc6ea08378b98ff7 (patch) | |
| tree | 148dfc7464ce714266a05c89ece856d016fc8083 /mm/vmalloc.c | |
| parent | 81f1ba586e393ad43350bded96d1ec3c48674b00 (diff) | |
| download | linux-stable-f07116d77b5b9a4fecdcb470fc6ea08378b98ff7.tar.gz linux-stable-f07116d77b5b9a4fecdcb470fc6ea08378b98ff7.tar.bz2 linux-stable-f07116d77b5b9a4fecdcb470fc6ea08378b98ff7.zip | |
mm/vmalloc: respect passed gfp_mask when doing preloading
Allocation functions should comply with the given gfp_mask as much as
possible. The preallocation code in alloc_vmap_area doesn't follow that
pattern and it is using a hardcoded GFP_KERNEL. Although this doesn't
really make much difference because vmalloc is not GFP_NOWAIT compliant
in general (e.g. page table allocations are GFP_KERNEL) there is no
reason to spread that bad habit and it is good to fix the antipattern.
[mhocko@suse.com: rewrite changelog]
Link: http://lkml.kernel.org/r/20191016095438.12391-2-urezki@gmail.com
Signed-off-by: Uladzislau Rezki (Sony) <urezki@gmail.com>
Acked-by: Michal Hocko <mhocko@suse.com>
Cc: Daniel Wagner <dwagner@suse.de>
Cc: Hillf Danton <hdanton@sina.com>
Cc: Matthew Wilcox <willy@infradead.org>
Cc: Oleksiy Avramchenko <oleksiy.avramchenko@sonymobile.com>
Cc: Peter Zijlstra <peterz@infradead.org>
Cc: Sebastian Andrzej Siewior <bigeasy@linutronix.de>
Cc: Steven Rostedt <rostedt@goodmis.org>
Cc: Thomas Gleixner <tglx@linutronix.de>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Diffstat (limited to 'mm/vmalloc.c')
| -rw-r--r-- | mm/vmalloc.c | 8 |
1 files changed, 4 insertions, 4 deletions
diff --git a/mm/vmalloc.c b/mm/vmalloc.c index 90517b4b21ef..b3bb50d07e27 100644 --- a/mm/vmalloc.c +++ b/mm/vmalloc.c @@ -1063,9 +1063,9 @@ static struct vmap_area *alloc_vmap_area(unsigned long size, return ERR_PTR(-EBUSY); might_sleep(); + gfp_mask = gfp_mask & GFP_RECLAIM_MASK; - va = kmem_cache_alloc_node(vmap_area_cachep, - gfp_mask & GFP_RECLAIM_MASK, node); + va = kmem_cache_alloc_node(vmap_area_cachep, gfp_mask, node); if (unlikely(!va)) return ERR_PTR(-ENOMEM); @@ -1073,7 +1073,7 @@ static struct vmap_area *alloc_vmap_area(unsigned long size, * Only scan the relevant parts containing pointers to other objects * to avoid false negatives. */ - kmemleak_scan_area(&va->rb_node, SIZE_MAX, gfp_mask & GFP_RECLAIM_MASK); + kmemleak_scan_area(&va->rb_node, SIZE_MAX, gfp_mask); retry: /* @@ -1099,7 +1099,7 @@ retry: * Just proceed as it is. If needed "overflow" path * will refill the cache we allocate from. */ - pva = kmem_cache_alloc_node(vmap_area_cachep, GFP_KERNEL, node); + pva = kmem_cache_alloc_node(vmap_area_cachep, gfp_mask, node); spin_lock(&vmap_area_lock); |