a7y18lte-ubports/android_kernel_samsung_universal7885
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Ulrich Drepper 510df2dd48 flag parameters: NONBLOCK in inotify_init 
This patch adds non-blocking support for inotify_init1.  The
additional changes needed are minimal.

The following test must be adjusted for architectures other than x86 and
x86-64 and in case the syscall numbers changed.

~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
#include <fcntl.h>
#include <stdio.h>
#include <unistd.h>
#include <sys/syscall.h>

#ifndef __NR_inotify_init1
# ifdef __x86_64__
#  define __NR_inotify_init1 294
# elif defined __i386__
#  define __NR_inotify_init1 332
# else
#  error "need __NR_inotify_init1"
# endif
#endif

#define IN_NONBLOCK O_NONBLOCK

int
main (void)
{
  int fd = syscall (__NR_inotify_init1, 0);
  if (fd == -1)
    {
      puts ("inotify_init1(0) failed");
      return 1;
    }
  int fl = fcntl (fd, F_GETFL);
  if (fl == -1)
    {
      puts ("fcntl failed");
      return 1;
    }
  if (fl & O_NONBLOCK)
    {
      puts ("inotify_init1(0) set non-blocking mode");
      return 1;
    }
  close (fd);

  fd = syscall (__NR_inotify_init1, IN_NONBLOCK);
  if (fd == -1)
    {
      puts ("inotify_init1(IN_NONBLOCK) failed");
      return 1;
    }
  fl = fcntl (fd, F_GETFL);
  if (fl == -1)
    {
      puts ("fcntl failed");
      return 1;
    }
  if ((fl & O_NONBLOCK) == 0)
    {
      puts ("inotify_init1(IN_NONBLOCK) set non-blocking mode");
      return 1;
    }
  close (fd);

  puts ("OK");

  return 0;
}
~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~

Signed-off-by: Ulrich Drepper <drepper@redhat.com>
Acked-by: Davide Libenzi <davidel@xmailserver.org>
Cc: Michael Kerrisk <mtk.manpages@googlemail.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2008-07-24 10:47:29 -07:00
..
acpi
asm-alpha flag parameters: paccept 2008-07-24 10:47:27 -07:00
asm-arm pm: remove remaining obsolete definitions from pm.h 2008-07-24 10:47:22 -07:00
asm-avr32 PAGE_ALIGN(): correctly handle 64-bit values on 32-bit architectures 2008-07-24 10:47:21 -07:00
asm-blackfin PAGE_ALIGN(): correctly handle 64-bit values on 32-bit architectures 2008-07-24 10:47:21 -07:00
asm-cris cris: remove unused global_flush_tlb 2008-07-24 10:47:24 -07:00
asm-frv PAGE_ALIGN(): correctly handle 64-bit values on 32-bit architectures 2008-07-24 10:47:21 -07:00
asm-generic
asm-h8300 remove include/asm-h8300/keyboard.h 2008-07-24 10:47:22 -07:00
asm-ia64 PAGE_ALIGN(): correctly handle 64-bit values on 32-bit architectures 2008-07-24 10:47:21 -07:00
asm-m32r PAGE_ALIGN(): correctly handle 64-bit values on 32-bit architectures 2008-07-24 10:47:21 -07:00
asm-m68k PAGE_ALIGN(): correctly handle 64-bit values on 32-bit architectures 2008-07-24 10:47:21 -07:00
asm-m68knommu PAGE_ALIGN(): correctly handle 64-bit values on 32-bit architectures 2008-07-24 10:47:21 -07:00
asm-mips flag parameters: socket and socketpair 2008-07-24 10:47:27 -07:00
asm-mn10300 mn10300: move sg_dma_{address,len}() to asm/scatterlist.h 2008-07-24 10:47:24 -07:00
asm-parisc flag parameters: paccept 2008-07-24 10:47:27 -07:00
asm-powerpc PAGE_ALIGN(): correctly handle 64-bit values on 32-bit architectures 2008-07-24 10:47:21 -07:00
asm-s390 PAGE_ALIGN(): correctly handle 64-bit values on 32-bit architectures 2008-07-24 10:47:21 -07:00
asm-sh PAGE_ALIGN(): correctly handle 64-bit values on 32-bit architectures 2008-07-24 10:47:21 -07:00
asm-sparc PAGE_ALIGN(): correctly handle 64-bit values on 32-bit architectures 2008-07-24 10:47:21 -07:00
asm-sparc64
asm-um UML: make several more things static 2008-07-24 10:47:24 -07:00
asm-v850 remove the v850 port 2008-07-24 10:47:24 -07:00
asm-x86 flag parameters: inotify_init 2008-07-24 10:47:28 -07:00
asm-xtensa PAGE_ALIGN(): correctly handle 64-bit values on 32-bit architectures 2008-07-24 10:47:21 -07:00
crypto
drm
keys
linux flag parameters: NONBLOCK in inotify_init 2008-07-24 10:47:29 -07:00
math-emu
media
mtd
net
pcmcia
rdma
rxrpc
scsi
sound
video
xen
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