提交 · 8c0a85377048b64c880e76ec7368904fe46d0b94 · openanolis / cloud-kernel

03 10月, 2012 3 次提交

fs: push rcu_barrier() from deactivate_locked_super() to filesystems · 8c0a8537

由 Kirill A. Shutemov 提交于 9月 26, 2012

There's no reason to call rcu_barrier() on every
deactivate_locked_super().  We only need to make sure that all delayed rcu
free inodes are flushed before we destroy related cache.

Removing rcu_barrier() from deactivate_locked_super() affects some fast
paths.  E.g.  on my machine exit_group() of a last process in IPC
namespace takes 0.07538s.  rcu_barrier() takes 0.05188s of that time.
Signed-off-by: NKirill A. Shutemov <kirill.shutemov@linux.intel.com>
Cc: Al Viro <viro@zeniv.linux.org.uk>
Signed-off-by: NAndrew Morton <akpm@linux-foundation.org>
Signed-off-by: NAl Viro <viro@zeniv.linux.org.uk>

8c0a8537

btrfs: reada_extent doesn't need kref for refcount · 99621b44

由 Al Viro 提交于 8月 29, 2012

All increments and decrements are under the same spinlock - have to be,
since they need to protect the radix_tree it's found in.  Just use
int, no need to wank with kref...
Signed-off-by: NAl Viro <viro@zeniv.linux.org.uk>

99621b44

coredump: move core dump functionality into its own file · 10c28d93

由 Alex Kelly 提交于 9月 26, 2012

This prepares for making core dump functionality optional.

The variable "suid_dumpable" and associated functions are left in fs/exec.c
because they're used elsewhere, such as in ptrace.
Signed-off-by: NAlex Kelly <alex.page.kelly@gmail.com>
Reviewed-by: NJosh Triplett <josh@joshtriplett.org>
Acked-by: NSerge Hallyn <serge.hallyn@canonical.com>
Acked-by: NKees Cook <keescook@chromium.org>
Signed-off-by: NAndrew Morton <akpm@linux-foundation.org>
Signed-off-by: NAl Viro <viro@zeniv.linux.org.uk>

10c28d93

27 9月, 2012 37 次提交
- D
  coredump: prevent double-free on an error path in core dumper · f34f9d18
  由 Denys Vlasenko 提交于 9月 26, 2012
```
In !CORE_DUMP_USE_REGSET case, if elf_note_info_init fails to allocate
memory for info->fields, it frees already allocated stuff and returns
error to its caller, fill_note_info.  Which in turn returns error to its
caller, elf_core_dump.  Which jumps to cleanup label and calls
free_note_info, which will happily try to free all info->fields again.
BOOM.

This is the fix.
Signed-off-by: NOleg Nesterov <oleg@redhat.com>
Signed-off-by: NDenys Vlasenko <vda.linux@googlemail.com>
Cc: Venu Byravarasu <vbyravarasu@nvidia.com>
Cc: <stable@vger.kernel.org>
Signed-off-by: NAndrew Morton <akpm@linux-foundation.org>
```
  f34f9d18
- A
  usb/gadget: fix misannotations · 260ef311
  由 Al Viro 提交于 9月 26, 2012
```
__user * != * __user
Signed-off-by: NAl Viro <viro@zeniv.linux.org.uk>
```
  260ef311
- A
  fcntl: fix misannotations · 63784dd0
  由 Al Viro 提交于 9月 26, 2012
```
__user * != * __user...
Signed-off-by: NAl Viro <viro@zeniv.linux.org.uk>
```
  63784dd0
- A
  ceph: don't abuse d_delete() on failure exits · 2744c171
  由 Al Viro 提交于 9月 26, 2012
```
Signed-off-by: NAl Viro <viro@zeniv.linux.org.uk>
```
  2744c171
- A
  hypfs: ->d_parent is never NULL or negative · 3a8ca1b6
  由 Al Viro 提交于 9月 26, 2012
```
Signed-off-by: NAl Viro <viro@zeniv.linux.org.uk>
```
  3a8ca1b6
- A
  vfs: delete surplus inode NULL check · 1fe0c023
  由 Alan Cox 提交于 9月 19, 2012
```
Each iteration of d_delete we reload inode from dentry->d_inode and
then call S_ISDIR(inode-i_mode), so inode cannot possibly be NULL
shortly afterwards unless something went horribly wrong.
Signed-off-by: NAlan Cox <alan@linux.intel.com>
Signed-off-by: NAl Viro <viro@zeniv.linux.org.uk>
```
  1fe0c023
- A
  switch simple cases of fget_light to fdget · 2903ff01
  由 Al Viro 提交于 8月 28, 2012
```
Signed-off-by: NAl Viro <viro@zeniv.linux.org.uk>
```
  2903ff01
- A
  new helpers: fdget()/fdput() · a5b470ba
  由 Al Viro 提交于 8月 27, 2012
```
Signed-off-bs: Al Viro <viro@zeniv.linux.org.uk>
```
  a5b470ba
- A
  switch o2hb_region_dev_write() to fget_light() · 2a117354
  由 Al Viro 提交于 8月 27, 2012
```
Signed-off-by: NAl Viro <viro@zeniv.linux.org.uk>
```
  2a117354
- A
  proc_map_files_readdir(): don't bother with grabbing files · 7b540d06
  由 Al Viro 提交于 8月 27, 2012
```
all we need is their ->f_mode, so just collect _that_
Signed-off-by: NAl Viro <viro@zeniv.linux.org.uk>
```
  7b540d06
- A
  make get_file() return its argument · cb0942b8
  由 Al Viro 提交于 8月 27, 2012
```
simplifies a bunch of callers...
Signed-off-by: NAl Viro <viro@zeniv.linux.org.uk>
```
  cb0942b8
- A
  vhost_set_vring(): turn pollstart/pollstop into bool · cecb46f1
  由 Al Viro 提交于 8月 27, 2012
```
Signed-off-by: NAl Viro <viro@zeniv.linux.org.uk>
```
  cecb46f1
- A
  switch prctl_set_mm_exe_file() to fget_light() · e10ce27f
  由 Al Viro 提交于 8月 27, 2012
```
Signed-off-by: NAl Viro <viro@zeniv.linux.org.uk>
```
  e10ce27f
- A
  switch xfs_find_handle() to fget_light() · 64e09fa2
  由 Al Viro 提交于 8月 27, 2012
```
Signed-off-by: NAl Viro <viro@zeniv.linux.org.uk>
```
  64e09fa2
- A
  switch xfs_swapext() to fget_light() · 1ea65c96
  由 Al Viro 提交于 8月 27, 2012
```
Signed-off-by: NAl Viro <viro@zeniv.linux.org.uk>
```
  1ea65c96
- A
  switch coda get_device_index() to fget_light() · 78f7d75e
  由 Al Viro 提交于 8月 27, 2012
```
Signed-off-by: NAl Viro <viro@zeniv.linux.org.uk>
```
  78f7d75e
- A
  switch infinibarf users of fget() to fget_light() · 88b428d6
  由 Al Viro 提交于 8月 27, 2012
```
Signed-off-by: NAl Viro <viro@zeniv.linux.org.uk>
```
  88b428d6
- A
  switch vfio_group_set_container() to fget_light() · 1d3653a7
  由 Al Viro 提交于 8月 27, 2012
```
Signed-off-by: NAl Viro <viro@zeniv.linux.org.uk>
```
  1d3653a7
- A
  switch btrfs_ioctl_clone() to fget_light() · 8319aa91
  由 Al Viro 提交于 8月 27, 2012
```
Signed-off-by: NAl Viro <viro@zeniv.linux.org.uk>
```
  8319aa91
- A
  switch mqueue syscalls to fget_light() · 515e0d66
  由 Al Viro 提交于 8月 27, 2012
```
Signed-off-by: NAl Viro <viro@zeniv.linux.org.uk>
```
  515e0d66
- A
  switch SNDRV_PCM_IOCTL_LINK to fget_light() · bdbf6943
  由 Al Viro 提交于 8月 26, 2012
```
Signed-off-by: NAl Viro <viro@zeniv.linux.org.uk>
```
  bdbf6943
- A
  switch timerfd_[sg]ettime(2) to fget_light() · 4109633f
  由 Al Viro 提交于 8月 26, 2012
```
Signed-off-by: NAl Viro <viro@zeniv.linux.org.uk>
```
  4109633f
- A
  switch epoll_wait(2) to fget_light() · 5e196a9c
  由 Al Viro 提交于 8月 26, 2012
```
Signed-off-by: NAl Viro <viro@zeniv.linux.org.uk>
```
  5e196a9c
- A
  switch btrfs_ioctl_snap_create_transid() to fget_light() · ecd18815
  由 Al Viro 提交于 8月 26, 2012
```
Signed-off-by: NAl Viro <viro@zeniv.linux.org.uk>
```
  ecd18815
- A
  switch EXT4_IOC_MOVE_EXT to fget_light() · 6bdf2954
  由 Al Viro 提交于 8月 26, 2012
```
Signed-off-by: NAl Viro <viro@zeniv.linux.org.uk>
```
  6bdf2954
- A
  export fget_light · 4557c669
  由 Al Viro 提交于 8月 28, 2012
```
Signed-off-by: NAl Viro <viro@zeniv.linux.org.uk>
```
  4557c669
- A
  ext4: close struct file leak on EXT4_IOC_MOVE_EXT · 399c9b86
  由 Al Viro 提交于 8月 26, 2012
```
Signed-off-by: NAl Viro <viro@zeniv.linux.org.uk>
```
  399c9b86
- A
  switch hpux_getdents() to fget_light() · ecaa80fb
  由 Al Viro 提交于 8月 26, 2012
```
Signed-off-by: NAl Viro <viro@zeniv.linux.org.uk>
```
  ecaa80fb
- A
  switch itanic perfmonctl(2) to fget_light() · 7456a29b
  由 Al Viro 提交于 8月 26, 2012
```
Signed-off-by: NAl Viro <viro@zeniv.linux.org.uk>
```
  7456a29b
- A
  switch osf_getdirentries() to fget_light() · 866ecfdd
  由 Al Viro 提交于 8月 26, 2012
```
Signed-off-by: NAl Viro <viro@zeniv.linux.org.uk>
```
  866ecfdd
- A
  switch readahead(2) to fget_light() · 132ea247
  由 Al Viro 提交于 8月 26, 2012
```
Signed-off-by: NAl Viro <viro@zeniv.linux.org.uk>
```
  132ea247
- A
  switch fadvise(2) to fget_light() · 61144378
  由 Al Viro 提交于 8月 26, 2012
```
Signed-off-by: NAl Viro <viro@zeniv.linux.org.uk>
```
  61144378
- A
  switch fchmod(2) to fget_light() · d6483b7a
  由 Al Viro 提交于 8月 26, 2012
```
Signed-off-by: NAl Viro <viro@zeniv.linux.org.uk>
```
  d6483b7a
- A
  switch fallocate(2) to fget_light() · 6b48c5b2
  由 Al Viro 提交于 8月 26, 2012
```
Signed-off-by: NAl Viro <viro@zeniv.linux.org.uk>
```
  6b48c5b2
- A
  switch ftruncate(2) to fget_light · bf2965d5
  由 Al Viro 提交于 8月 26, 2012
```
Signed-off-by: NAl Viro <viro@zeniv.linux.org.uk>
```
  bf2965d5
- A
  namei.c: fix BS comment · f6d2ac5c
  由 Al Viro 提交于 8月 26, 2012
```
get_write_access() is needed for nfsd, not binfmt_aout (the latter
has no business doing anything of that kind, of course)
Signed-off-by: NAl Viro <viro@zeniv.linux.org.uk>
```
  f6d2ac5c
- A
  don't leak O_CLOEXEC into ->f_flags · c6f3d811
  由 Al Viro 提交于 8月 26, 2012
```
Signed-off-by: NAl Viro <viro@zeniv.linux.org.uk>
```
  c6f3d811

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openanolis / cloud-kernel
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