Commit Graph

11742 Commits

Author SHA1 Message Date
Benjamin Herrenschmidt
d65d830ca0 Merge commit 'gcl/gcl-next' 2008-07-28 16:30:40 +10:00
Linus Torvalds
837b41b5de Merge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/ieee1394/linux1394-2.6
* 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/ieee1394/linux1394-2.6:
  firewire: state userland requirements in Kconfig help
  firewire: avoid memleak after phy config transmit failure
  firewire: fw-ohci: TSB43AB22/A dualbuffer workaround
  firewire: queue the right number of data
  firewire: warn on unfinished transactions during card removal
  firewire: small fw_fill_request cleanup
  firewire: fully initialize fw_transaction before marking it pending
  firewire: fix race of bus reset with request transmission
2008-07-27 10:24:06 -07:00
Andrea Righi
5995477ab7 task IO accounting: improve code readability
Put all i/o statistics in struct proc_io_accounting and use inline functions to
initialize and increment statistics, removing a lot of single variable
assignments.

This also reduces the kernel size as following (with CONFIG_TASK_XACCT=y and
CONFIG_TASK_IO_ACCOUNTING=y).

    text    data     bss     dec     hex filename
   11651       0       0   11651    2d83 kernel/exit.o.before
   11619       0       0   11619    2d63 kernel/exit.o.after
   10886     132     136   11154    2b92 kernel/fork.o.before
   10758     132     136   11026    2b12 kernel/fork.o.after

 3082029  807968 4818600 8708597  84e1f5 vmlinux.o.before
 3081869  807968 4818600 8708437  84e155 vmlinux.o.after

Signed-off-by: Andrea Righi <righi.andrea@gmail.com>
Acked-by: Oleg Nesterov <oleg@tv-sign.ru>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2008-07-27 09:58:20 -07:00
Linus Torvalds
8be1a6d6c7 Merge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/roland/infiniband
* 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/roland/infiniband:
  mlx4: Update/add Mellanox Technologies copyright lines to mlx4 driver files
  mlx4_core: Add VLAN tag field to WQE control segment struct
  RDMA/nes: CM connection setup/teardown rework
  IPoIB: Correct help text for INFINIBAND_IPOIB_DEBUG
  IPoIB/cm: Connected mode is no longer EXPERIMENTAL
  RDMA/ucm: BKL is not needed for ib_ucm_open()
  RDMA/ucma: BKL is not needed for ucma_open()
2008-07-26 20:40:36 -07:00
Linus Torvalds
9ee08c2df4 Merge git://git.infradead.org/mtd-2.6
* git://git.infradead.org/mtd-2.6: (57 commits)
  [MTD] [NAND] subpage read feature as a way to increase performance. 
  CPUFREQ: S3C24XX NAND driver frequency scaling support.
  [MTD][NAND] au1550nd: remove unused variable
  [MTD] jedec_probe: Fix SST 16-bit chip detection
  [MTD][MTDPART] Fix a division by zero bug
  [MTD][MTDPART] Cleanup and document the erase region handling
  [MTD][MTDPART] Handle most checkpatch findings
  [MTD][MTDPART] Seperate main loop from per-partition code in add_mtd_partition
  [MTD] physmap: resume already suspended chips on failure to suspend
  [MTD] physmap: Fix suspend/resume/shutdown bugs.
  [MTD] [NOR] Fix -ETIMEO errors in CFI driver
  [MTD] [NAND] fsl_elbc_nand: fix section mismatch with CONFIG_MTD_OF_PARTS=y
  [JFFS2] Use .unlocked_ioctl
  [MTD] Fix const assignment in the MTD command line partitioning driver
  [MTD] [NOR] gen_probe: No debug message when debugging is disabled
  [MTD] [NAND] remove __PPC__ hardcoded address from DiskOnChip drivers
  [MTD] [MAPS] Remove the bast-flash driver.
  [MTD] [NAND] fsl_elbc_nand: ecclayout cleanups
  [MTD] [NAND] fsl_elbc_nand: implement support for flash-based BBT
  [MTD] [NAND] fsl_elbc_nand: fix OOB workability for large page NAND chips
  ...
2008-07-26 20:30:56 -07:00
Linus Torvalds
eaf0ba5ef6 Merge branch 'tracehook' of git://git.kernel.org/pub/scm/linux/kernel/git/frob/linux-2.6-utrace
* 'tracehook' of git://git.kernel.org/pub/scm/linux/kernel/git/frob/linux-2.6-utrace:
  tracehook: comment fixes
2008-07-26 20:29:39 -07:00
Linus Torvalds
bdee6ac7d1 Merge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/drzeus/mmc
* 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/drzeus/mmc:
  atmel-mci: debugfs support
  mmc: Add per-card debugfs support
  mmc: Export internal host state through debugfs
  imxmmc: fix crash when no platform data is provided
  imxmmc: fix platform resources
  imxmmc: remove DEBUG definition
  mmc_spi: put signals to low power off fix
2008-07-26 20:27:31 -07:00
Linus Torvalds
4836e30078 Merge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/viro/vfs-2.6
* 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/viro/vfs-2.6: (39 commits)
  [PATCH] fix RLIM_NOFILE handling
  [PATCH] get rid of corner case in dup3() entirely
  [PATCH] remove remaining namei_{32,64}.h crap
  [PATCH] get rid of indirect users of namei.h
  [PATCH] get rid of __user_path_lookup_open
  [PATCH] f_count may wrap around
  [PATCH] dup3 fix
  [PATCH] don't pass nameidata to __ncp_lookup_validate()
  [PATCH] don't pass nameidata to gfs2_lookupi()
  [PATCH] new (local) helper: user_path_parent()
  [PATCH] sanitize __user_walk_fd() et.al.
  [PATCH] preparation to __user_walk_fd cleanup
  [PATCH] kill nameidata passing to permission(), rename to inode_permission()
  [PATCH] take noexec checks to very few callers that care
  Re: [PATCH 3/6] vfs: open_exec cleanup
  [patch 4/4] vfs: immutable inode checking cleanup
  [patch 3/4] fat: dont call notify_change
  [patch 2/4] vfs: utimes cleanup
  [patch 1/4] vfs: utimes: move owner check into inode_change_ok()
  [PATCH] vfs: use kstrdup() and check failing allocation
  ...
2008-07-26 20:23:44 -07:00
Linus Torvalds
5c7c204aec Merge git://git.kernel.org/pub/scm/linux/kernel/git/kkeil/ISDN-2.6
* git://git.kernel.org/pub/scm/linux/kernel/git/kkeil/ISDN-2.6:
  Add layer1 over IP support
  Add mISDN HFC multiport driver
  Add mISDN HFC PCI driver
  Add mISDN DSP
  Add mISDN core files
  Define AF_ISDN and PF_ISDN
  Add mISDN driver
2008-07-26 20:19:41 -07:00
Linus Torvalds
2284284281 Merge git://git.kernel.org/pub/scm/linux/kernel/git/davem/net-2.6
* git://git.kernel.org/pub/scm/linux/kernel/git/davem/net-2.6:
  netns: fix ip_rt_frag_needed rt_is_expired
  netfilter: nf_conntrack_extend: avoid unnecessary "ct->ext" dereferences
  netfilter: fix double-free and use-after free
  netfilter: arptables in netns for real
  netfilter: ip{,6}tables_security: fix future section mismatch
  selinux: use nf_register_hooks()
  netfilter: ebtables: use nf_register_hooks()
  Revert "pkt_sched: sch_sfq: dump a real number of flows"
  qeth: use dev->ml_priv instead of dev->priv
  syncookies: Make sure ECN is disabled
  net: drop unused BUG_TRAP()
  net: convert BUG_TRAP to generic WARN_ON
  drivers/net: convert BUG_TRAP to generic WARN_ON
2008-07-26 20:17:56 -07:00
Andrea Righi
510a35d4a4 hugetlb: remove unused variable warning
Remove the following warning when CONFIG_HUGETLB_PAGE is not set:

	ipc/shm.c: In function `shm_get_stat':
	ipc/shm.c:565: warning: unused variable `h'

[akpm@linux-foundation.org: use tabs, not spaces]
Signed-off-by: Andrea Righi <righi.andrea@gmail.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2008-07-26 20:16:47 -07:00
Al Viro
3f8206d496 [PATCH] get rid of indirect users of namei.h
fs.h needs path.h, not namei.h; nfs_fs.h doesn't need it at all.
Several places in the tree needed direct include.

Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
2008-07-26 20:53:42 -04:00
Al Viro
964bd18362 [PATCH] get rid of __user_path_lookup_open
Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
2008-07-26 20:53:41 -04:00
Al Viro
516e0cc564 [PATCH] f_count may wrap around
make it atomic_long_t; while we are at it, get rid of useless checks in affs,
hfs and hpfs - ->open() always has it equal to 1, ->release() - to 0.

Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
2008-07-26 20:53:40 -04:00
Al Viro
2d8f30380a [PATCH] sanitize __user_walk_fd() et.al.
* do not pass nameidata; struct path is all the callers want.
* switch to new helpers:
	user_path_at(dfd, pathname, flags, &path)
	user_path(pathname, &path)
	user_lpath(pathname, &path)
	user_path_dir(pathname, &path)  (fail if not a directory)
  The last 3 are trivial macro wrappers for the first one.
* remove nameidata in callers.

Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
2008-07-26 20:53:34 -04:00
Al Viro
f419a2e3b6 [PATCH] kill nameidata passing to permission(), rename to inode_permission()
Incidentally, the name that gives hundreds of false positives on grep
is not a good idea...

Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
2008-07-26 20:53:31 -04:00
Miklos Szeredi
9767d74957 [patch 1/4] vfs: utimes: move owner check into inode_change_ok()
Add a new ia_valid flag: ATTR_TIMES_SET, to handle the
UTIMES_OMIT/UTIMES_NOW and UTIMES_NOW/UTIMES_OMIT cases.  In these
cases neither ATTR_MTIME_SET nor ATTR_ATIME_SET is in the flags, yet
the POSIX draft specifies that permission checking is performed the
same way as if one or both of the times was explicitly set to a
timestamp.

See the path "vfs: utimensat(): fix error checking for
{UTIME_NOW,UTIME_OMIT} case" by Michael Kerrisk for the patch
introducing this behavior.

This is a cleanup, as well as allowing filesystems (NFS/fuse/...) to
perform their own permission checking instead of the default.

CC: Ulrich Drepper <drepper@redhat.com>
CC: Michael Kerrisk <mtk.manpages@gmail.com>
Signed-off-by: Miklos Szeredi <mszeredi@suse.cz>
Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
2008-07-26 20:53:25 -04:00
Li Zefan
88b387824f [PATCH] vfs: use kstrdup() and check failing allocation
- use kstrdup() instead of kmalloc() + memcpy()
- return NULL if allocating ->mnt_devname failed
- mnt_devname should be const

Signed-off-by: Li Zefan <lizf@cn.fujitsu.com>
Acked-by: Cyrill Gorcunov <gorcunov@gmail.com>
Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
2008-07-26 20:53:24 -04:00
Al Viro
b77b0646ef [PATCH] pass MAY_OPEN to vfs_permission() explicitly
... and get rid of the last "let's deduce mask from nameidata->flags"
bit.

Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
2008-07-26 20:53:22 -04:00
Al Viro
a110343f0d [PATCH] fix MAY_CHDIR/MAY_ACCESS/LOOKUP_ACCESS mess
* MAY_CHDIR is redundant - it's an equivalent of MAY_ACCESS
* MAY_ACCESS on fuse should affect only the last step of pathname resolution
* fchdir() and chroot() should pass MAY_ACCESS, for the same reason why
  chdir() needs that.
* now that we pass MAY_ACCESS explicitly in all cases, LOOKUP_ACCESS can be
  removed; it has no business being in nameidata.

Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
2008-07-26 20:53:21 -04:00
Al Viro
7f2da1e7d0 [PATCH] kill altroot
long overdue...

Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
2008-07-26 20:53:20 -04:00
Al Viro
8bb79224b8 [PATCH] permission checks for chdir need special treatment only on the last step
... so we ought to pass MAY_CHDIR to vfs_permission() instead of having
it triggered on every step of preceding pathname resolution.  LOOKUP_CHDIR
is killed by that.

Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
2008-07-26 20:53:19 -04:00
Miklos Szeredi
db2e747b14 [patch 5/5] vfs: remove mode parameter from vfs_symlink()
Remove the unused mode parameter from vfs_symlink and callers.

Thanks to Tetsuo Handa for noticing.

CC: Tetsuo Handa <penguin-kernel@I-love.SAKURA.ne.jp>
Signed-off-by: Miklos Szeredi <mszeredi@suse.cz>
2008-07-26 20:53:18 -04:00
Miklos Szeredi
2f1936b877 [patch 3/5] vfs: change remove_suid() to file_remove_suid()
All calls to remove_suid() are made with a file pointer, because
(similarly to file_update_time) it is called when the file is written.

Clean up callers by passing in a file instead of a dentry.

Signed-off-by: Miklos Szeredi <mszeredi@suse.cz>
2008-07-26 20:53:16 -04:00
Al Viro
e6305c43ed [PATCH] sanitize ->permission() prototype
* kill nameidata * argument; map the 3 bits in ->flags anybody cares
  about to new MAY_... ones and pass with the mask.
* kill redundant gfs2_iop_permission()
* sanitize ecryptfs_permission()
* fix remaining places where ->permission() instances might barf on new
  MAY_... found in mask.

The obvious next target in that direction is permission(9)

folded fix for nfs_permission() breakage from Miklos Szeredi <mszeredi@suse.cz>

Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
2008-07-26 20:53:14 -04:00