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| author |   Linus Torvalds <torvalds@linux-foundation.org> | 2013-12-12 18:22:10 -0800 |
|---|---|---|
| committer | Linus Torvalds <torvalds@linux-foundation.org> | 2013-12-12 18:22:10 -0800 |
| commit | 8d2763770c34e8ed771f0be86760eb4485febc05 (patch) | |
| tree | 38ca3d44f84b8f575f3378c6be525e559bd314c1 /fs | |
| parent | Merge tag 'for-linus' of git://git.kernel.org/pub/scm/virt/kvm/kvm (diff) | |
| parent | mm: memcg: do not allow task about to OOM kill to bypass the limit (diff) | |
| download | linux-dev-8d2763770c34e8ed771f0be86760eb4485febc05.tar.xz linux-dev-8d2763770c34e8ed771f0be86760eb4485febc05.zip | |
Merge branch 'akpm' (fixes from Andrew)
Merge patches from Andrew Morton:
"13 fixes"
* emailed patches from Andrew Morton <akpm@linux-foundation.org>:
mm: memcg: do not allow task about to OOM kill to bypass the limit
mm: memcg: fix race condition between memcg teardown and swapin
thp: move preallocated PTE page table on move_huge_pmd()
mfd/rtc: s5m: fix register updating by adding regmap for RTC
rtc: s5m: enable IRQ wake during suspend
rtc: s5m: limit endless loop waiting for register update
rtc: s5m: fix unsuccesful IRQ request during probe
drivers/rtc/rtc-s5m.c: fix info->rtc assignment
include/linux/kernel.h: make might_fault() a nop for !MMU
drivers/rtc/rtc-at91rm9200.c: correct alarm over day/month wrap
procfs: also fix proc_reg_get_unmapped_area() for !MMU case
mm: memcg: do not declare OOM from __GFP_NOFAIL allocations
include/linux/hugetlb.h: make isolate_huge_page() an inline
Diffstat (limited to 'fs')
| -rw-r--r-- | fs/proc/inode.c | 14 |
1 files changed, 9 insertions, 5 deletions
diff --git a/fs/proc/inode.c b/fs/proc/inode.c index 28955d4b7218..124fc43c7090 100644 --- a/fs/proc/inode.c +++ b/fs/proc/inode.c @@ -292,16 +292,20 @@ proc_reg_get_unmapped_area(struct file *file, unsigned long orig_addr, { struct proc_dir_entry *pde = PDE(file_inode(file)); unsigned long rv = -EIO; - unsigned long (*get_area)(struct file *, unsigned long, unsigned long, - unsigned long, unsigned long) = NULL; + if (use_pde(pde)) { + typeof(proc_reg_get_unmapped_area) *get_area; + + get_area = pde->proc_fops->get_unmapped_area; #ifdef CONFIG_MMU - get_area = current->mm->get_unmapped_area; + if (!get_area) + get_area = current->mm->get_unmapped_area; #endif - if (pde->proc_fops->get_unmapped_area) - get_area = pde->proc_fops->get_unmapped_area; + if (get_area) rv = get_area(file, orig_addr, len, pgoff, flags); + else + rv = orig_addr; unuse_pde(pde); } return rv; |