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Paul Cassella 9a95f3cf7b mm: describe mmap_sem rules for __lock_page_or_retry() and callers 
Add a comment describing the circumstances in which
__lock_page_or_retry() will or will not release the mmap_sem when
returning 0.

Add comments to lock_page_or_retry()'s callers (filemap_fault(),
do_swap_page()) noting the impact on VM_FAULT_RETRY returns.

Add comments on up the call tree, particularly replacing the false "We
return with mmap_sem still held" comments.

Signed-off-by: Paul Cassella <cassella@cray.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2014-08-06 18:01:20 -07:00
..
alpha arch, locking: Ciao arch_mutex_cpu_relax() 2014-07-17 12:32:47 +02:00
arc TTY / Serial driver update for 3.17-rc1 2014-08-04 18:51:19 -07:00
arm CMA: generalize CMA reserved area management functionality 2014-08-06 18:01:16 -07:00
arm64 Merge branch 'timers-core-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip 2014-08-05 17:46:42 -07:00
avr32 arch, locking: Ciao arch_mutex_cpu_relax() 2014-07-17 12:32:47 +02:00
blackfin Merge branch 'perf-core-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip 2014-08-04 16:09:53 -07:00
c6x arch, locking: Ciao arch_mutex_cpu_relax() 2014-07-17 12:32:47 +02:00
cris arch, locking: Ciao arch_mutex_cpu_relax() 2014-07-17 12:32:47 +02:00
frv sys_sgetmask/sys_ssetmask: add CONFIG_SGETMASK_SYSCALL 2014-06-04 16:54:14 -07:00
hexagon Merge branch 'timers-core-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip 2014-08-05 17:46:42 -07:00
ia64 Merge branch 'timers-core-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip 2014-08-05 17:46:42 -07:00
m32r arch, locking: Ciao arch_mutex_cpu_relax() 2014-07-17 12:32:47 +02:00
m68k Merge branch 'for-next' of git://git.kernel.org/pub/scm/linux/kernel/git/gerg/m68knommu 2014-08-05 09:58:37 -07:00
metag Merge branch 'perf-core-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip 2014-08-04 16:09:53 -07:00
microblaze Merge branch 'locking-core-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip 2014-08-04 16:09:06 -07:00
mips Merge git://git.kernel.org/pub/scm/linux/kernel/git/davem/net-next 2014-08-06 09:38:14 -07:00
mn10300 arch, locking: Ciao arch_mutex_cpu_relax() 2014-07-17 12:32:47 +02:00
openrisc Merge branch 'irq-core-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip 2014-08-05 17:38:45 -07:00
parisc Staging driver patches for 3.17-rc1 2014-08-04 18:36:12 -07:00
powerpc mm, CMA: change cma_declare_contiguous() to obey coding convention 2014-08-06 18:01:16 -07:00
s390 Merge git://git.kernel.org/pub/scm/linux/kernel/git/davem/net-next 2014-08-06 09:38:14 -07:00
score score, ptrace: remove unused macros 2014-08-06 18:01:12 -07:00
sh sh: fix build error by adding generic ioport_{map/unmap}() 2014-08-06 18:01:13 -07:00
sparc Merge git://git.kernel.org/pub/scm/linux/kernel/git/davem/sparc-next 2014-08-06 09:41:23 -07:00
tile mm/vmalloc.c: clean up map_vm_area third argument 2014-08-06 18:01:19 -07:00
um um: segv: Save regs only in case of a kernel mode fault 2014-07-20 13:39:27 +02:00
unicore32 Driver core patches for 3.17-rc1 2014-08-04 18:34:04 -07:00
x86 mm: describe mmap_sem rules for __lock_page_or_retry() and callers 2014-08-06 18:01:20 -07:00
xtensa Merge branch 'locking-core-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip 2014-08-04 16:09:06 -07:00
.gitignore
Kconfig seccomp: add "seccomp" syscall 2014-07-18 12:13:37 -07:00