diff options
author | Tejun Heo <tj@kernel.org> | 2011-05-02 14:16:37 +0200 |
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committer | Tejun Heo <tj@kernel.org> | 2011-05-02 14:16:47 +0200 |
commit | ba67cf5cf2ce10ad86a212b70f8c7c75d93a5016 (patch) | |
tree | 70242f5927c6d6454bd352ff78f956cfc5238f59 /fs/file.c | |
parent | aff364860aa105b2deacc6f21ec8ef524460e3fc (diff) | |
parent | 2be19102b71c1a45d37fec50303791daa1a06869 (diff) |
Merge branch 'x86/urgent' into x86-mm
Merge reason: Pick up the following two fix commits.
2be19102b7: x86, NUMA: Fix empty memblk detection in numa_cleanup_meminfo()
765af22da8: x86-32, NUMA: Fix ACPI NUMA init broken by recent x86-64 change
Scheduled NUMA init 32/64bit unification changes depend on these.
Signed-off-by: Tejun Heo <tj@kernel.org>
Diffstat (limited to 'fs/file.c')
-rw-r--r-- | fs/file.c | 18 |
1 files changed, 11 insertions, 7 deletions
diff --git a/fs/file.c b/fs/file.c index 0be344755c0..4c6992d8f3b 100644 --- a/fs/file.c +++ b/fs/file.c @@ -9,6 +9,7 @@ #include <linux/module.h> #include <linux/fs.h> #include <linux/mm.h> +#include <linux/mmzone.h> #include <linux/time.h> #include <linux/sched.h> #include <linux/slab.h> @@ -39,14 +40,17 @@ int sysctl_nr_open_max = 1024 * 1024; /* raised later */ */ static DEFINE_PER_CPU(struct fdtable_defer, fdtable_defer_list); -static inline void *alloc_fdmem(unsigned int size) +static void *alloc_fdmem(unsigned int size) { - void *data; - - data = kmalloc(size, GFP_KERNEL|__GFP_NOWARN); - if (data != NULL) - return data; - + /* + * Very large allocations can stress page reclaim, so fall back to + * vmalloc() if the allocation size will be considered "large" by the VM. + */ + if (size <= (PAGE_SIZE << PAGE_ALLOC_COSTLY_ORDER)) { + void *data = kmalloc(size, GFP_KERNEL|__GFP_NOWARN); + if (data != NULL) + return data; + } return vmalloc(size); } |