diff options
| author | Michal Hocko <mhocko@suse.com> | 2017-07-06 15:36:19 -0700 |
|---|---|---|
| committer | Linus Torvalds <torvalds@linux-foundation.org> | 2017-07-06 16:24:30 -0700 |
| commit | c823bd9244337aef3699c546eb521c71fd60012e (patch) | |
| tree | 31cf0debefe18f88e2b8eb1855b978e2d8f20328 /fs/file.c | |
| parent | b74271e40e5de75c4316a68ebbb43150b509e708 (diff) | |
| download | lwn-c823bd9244337aef3699c546eb521c71fd60012e.tar.gz lwn-c823bd9244337aef3699c546eb521c71fd60012e.zip | |
fs/file.c: replace alloc_fdmem() with kvmalloc() alternative
There is no real reason to duplicate kvmalloc* helpers so drop
alloc_fdmem and replace it with the appropriate library function.
Link: http://lkml.kernel.org/r/20170531155145.17111-2-mhocko@kernel.org
Signed-off-by: Michal Hocko <mhocko@suse.com>
Cc: Alexander Viro <viro@zeniv.linux.org.uk>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Diffstat (limited to 'fs/file.c')
| -rw-r--r-- | fs/file.c | 22 |
1 files changed, 4 insertions, 18 deletions
diff --git a/fs/file.c b/fs/file.c index 1c2972e3a405..1fc7fbbb4510 100644 --- a/fs/file.c +++ b/fs/file.c @@ -30,21 +30,6 @@ unsigned int sysctl_nr_open_min = BITS_PER_LONG; unsigned int sysctl_nr_open_max = __const_min(INT_MAX, ~(size_t)0/sizeof(void *)) & -BITS_PER_LONG; -static void *alloc_fdmem(size_t size) -{ - /* - * 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_ACCOUNT | - __GFP_NOWARN | __GFP_NORETRY); - if (data != NULL) - return data; - } - return __vmalloc(size, GFP_KERNEL_ACCOUNT, PAGE_KERNEL); -} - static void __free_fdtable(struct fdtable *fdt) { kvfree(fdt->fd); @@ -131,13 +116,14 @@ static struct fdtable * alloc_fdtable(unsigned int nr) if (!fdt) goto out; fdt->max_fds = nr; - data = alloc_fdmem(nr * sizeof(struct file *)); + data = kvmalloc_array(nr, sizeof(struct file *), GFP_KERNEL_ACCOUNT); if (!data) goto out_fdt; fdt->fd = data; - data = alloc_fdmem(max_t(size_t, - 2 * nr / BITS_PER_BYTE + BITBIT_SIZE(nr), L1_CACHE_BYTES)); + data = kvmalloc(max_t(size_t, + 2 * nr / BITS_PER_BYTE + BITBIT_SIZE(nr), L1_CACHE_BYTES), + GFP_KERNEL_ACCOUNT); if (!data) goto out_arr; fdt->open_fds = data; |