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2008-07-11IB/umad: BKL is not needed for ib_umad_open()Roland Dreier1-6/+14
Remove explicit lock_kernel() calls and document why the code is safe. Signed-off-by: Roland Dreier <rolandd@cisco.com> Signed-off-by: Jonathan Corbet <corbet@lwn.net>
2008-07-04IB/uverbs: BKL is not needed for ib_uverbs_open()Roland Dreier1-7/+13
Remove explicit lock_kernel() calls and document why the code is safe. Signed-off-by: Roland Dreier <rolandd@cisco.com> Signed-off-by: Jonathan Corbet <corbet@lwn.net>
2008-07-02bf561-coreb: BKL unneeded for open()Jonathan Corbet1-4/+1
According to Mike Frysinger: http://permalink.gmane.org/gmane.linux.kernel/699279 open() does not need the BKL, so take it back out.
2008-07-02Call fasync() functions without the BKLJonathan Corbet1-3/+0
lock_kernel() calls have been pushed down into code which needs it, so there is no need to take the BKL at this level anymore. This work inspired and aided by Andi Kleen's unlocked_fasync() patches. Acked-by: Andi Kleen <ak@linux.intel.com> Signed-off-by: Jonathan Corbet <corbet@lwn.net>
2008-07-02snd/PCM: fasync BKL pushdownJonathan Corbet1-2/+6
Chances are this is unneeded, but the code is twisty enough that it is hard to tell. Signed-off-by: Jonathan Corbet <corbet@lwn.net>
2008-07-02ipmi: fasync BKL pushdownJonathan Corbet1-0/+2
This driver really needs it to avoid races against open() Signed-off-by: Jonathan Corbet <corbet@lwn.net>
2008-07-02ecryptfs: fasync BKL pushdownJonathan Corbet1-0/+3
Signed-off-by: Jonathan Corbet <corbet@lwn.net>
2008-07-02Bluetooth VHCI: fasync BKL pushdownJonathan Corbet1-3/+6
Signed-off-by: Jonathan Corbet <corbet@lwn.net>
2008-07-02tty_io: fasync BKL pushdownJonathan Corbet1-5/+9
Signed-off-by: Jonathan Corbet <corbet@lwn.net>
2008-07-02tun: fasync BKL pushdownJonathan Corbet1-4/+7
Signed-off-by: Jonathan Corbet <corbet@lwn.net>
2008-07-02i2o: fasync BKL pushdownJonathan Corbet1-4/+6
This driver appears to really need the BKL to protect open_files. Signed-off-by: Jonathan Corbet <corbet@lwn.net>
2008-07-02mpt: fasync BKL pushdownJonathan Corbet1-1/+5
It looks like this driver really needs the BKL here. Signed-off-by: Jonathan Corbet <corbet@lwn.net>
2008-07-02Remove BKL from remote_llseek v2Andi Kleen7-34/+42
- Replace remote_llseek with generic_file_llseek_unlocked (to force compilation failures in all users) - Change all users to either use generic_file_llseek_unlocked directly or take the BKL around. I changed the file systems who don't use the BKL for anything (CIFS, GFS) to call it directly. NCPFS and SMBFS and NFS take the BKL, but explicitely in their own source now. I moved them all over in a single patch to avoid unbisectable sections. Open problem: 32bit kernels can corrupt fpos because its modification is not atomic, but they can do that anyways because there's other paths who modify it without BKL. Do we need a special lock for the pos/f_version = 0 checks? Trond says the NFS BKL is likely not needed, but keep it for now until his full audit. v2: Use generic_file_llseek_unlocked instead of remote_llseek_unlocked and factor duplicated code (suggested by hch) Cc: Trond.Myklebust@netapp.com Cc: swhiteho@redhat.com Cc: sfrench@samba.org Cc: vandrove@vc.cvut.cz Signed-off-by: Andi Kleen <ak@suse.de> Signed-off-by: Andi Kleen <ak@linux.intel.com> Signed-off-by: Jonathan Corbet <corbet@lwn.net>
2008-07-02Make FAT users happier by not deadlockingJonathan Corbet1-9/+1
The FAT BKL removal patch can cause deadlocks. It turns out that the new lock_super() calls are unneeded, remove them (as directed by Linus). Reported-by: "Tony Luck" <tony.luck@intel.com> Signed-off-by: Jonathan Corbet <corbet@lwn.net>
2008-07-02x86-mce: BKL pushdownArnd Bergmann1-0/+4
Signed-off-by: Arnd Bergmann <arnd@arndb.de>
2008-07-02vmwatchdog: BKL pushdownArnd Bergmann1-1/+6
Signed-off-by: Arnd Bergmann <arnd@arndb.de>
2008-07-02vmcp: BKL pushdownArnd Bergmann1-0/+4
Signed-off-by: Arnd Bergmann <arnd@arndb.de>
2008-07-02via-pmu: BKL pushdownArnd Bergmann1-0/+3
Signed-off-by: Arnd Bergmann <arnd@arndb.de>
2008-07-02uml-random: BKL pushdownArnd Bergmann1-0/+3
Signed-off-by: Arnd Bergmann <arnd@arndb.de>
2008-07-02uml-mmapper: BKL pushdownArnd Bergmann1-0/+2
Signed-off-by: Arnd Bergmann <arnd@arndb.de>
2008-07-02uml-harddog: BKL pushdownArnd Bergmann1-0/+3
Signed-off-by: Arnd Bergmann <arnd@arndb.de>
2008-07-02uinput: BKL pushdownArnd Bergmann1-0/+3
Signed-off-by: Arnd Bergmann <arnd@arndb.de>
2008-07-02uctrl: BKL pushdownArnd Bergmann1-0/+3
Signed-off-by: Arnd Bergmann <arnd@arndb.de>
2008-07-02tpm-tpm: BKL pushdownArnd Bergmann1-0/+5
Signed-off-by: Arnd Bergmann <arnd@arndb.de>
2008-07-02sparc64-rtc: BKL pushdownArnd Bergmann1-1/+6
Signed-off-by: Arnd Bergmann <arnd@arndb.de>
2008-07-02sparc-apc: BKL pushdownArnd Bergmann1-0/+2
Signed-off-by: Arnd Bergmann <arnd@arndb.de>
2008-07-02sonypi: BKL pushdownArnd Bergmann1-0/+3
Signed-off-by: Arnd Bergmann <arnd@arndb.de>
2008-07-02sony-laptop: BKL pushdownArnd Bergmann1-0/+3
Signed-off-by: Arnd Bergmann <arnd@arndb.de>
2008-07-02serio: BKL pushdownArnd Bergmann1-1/+5
Signed-off-by: Arnd Bergmann <arnd@arndb.de>
2008-07-02scsi-tgt: BKL pushdownArnd Bergmann1-0/+2
Signed-off-by: Arnd Bergmann <arnd@arndb.de>
2008-07-02sbus-rtc: BKL pushdownArnd Bergmann1-0/+3
Signed-off-by: Arnd Bergmann <arnd@arndb.de>
2008-07-02rtc-rtc-m41t80: BKL pushdownArnd Bergmann1-1/+6
Signed-off-by: Arnd Bergmann <arnd@arndb.de>
2008-07-02rtc: BKL pushdownArnd Bergmann1-0/+4
Signed-off-by: Arnd Bergmann <arnd@arndb.de>
2008-07-02riowatchdog: BKL pushdownArnd Bergmann1-0/+2
Signed-off-by: Arnd Bergmann <arnd@arndb.de>
2008-07-02pm_qos_params: BKL pushdownArnd Bergmann1-1/+6
[jmc: added <linux/smp_lock.h>] Signed-off-by: Arnd Bergmann <arnd@arndb.de> Signed-off-by: Jonathan Corbet <corbet@lwn.net>
2008-07-02parisc-kernel-perf: BKL pushdownArnd Bergmann1-0/+4
Signed-off-by: Arnd Bergmann <arnd@arndb.de>
2008-07-02parisc-eisa_eeprom: BKL pushdownArnd Bergmann1-0/+3
Signed-off-by: Arnd Bergmann <arnd@arndb.de>
2008-07-02openprom: BKL pushdownArnd Bergmann1-0/+3
Signed-off-by: Arnd Bergmann <arnd@arndb.de>
2008-07-02ocfs2-stack_user: BKL pushdownArnd Bergmann1-0/+3
Signed-off-by: Arnd Bergmann <arnd@arndb.de>
2008-07-02nvram: BKL pushdownArnd Bergmann1-0/+4
Signed-off-by: Arnd Bergmann <arnd@arndb.de>
2008-07-02net-tun: BKL pushdownArnd Bergmann1-0/+2
Signed-off-by: Arnd Bergmann <arnd@arndb.de>
2008-07-02mwave-mwavedd: BKL pushdownArnd Bergmann1-0/+2
Signed-off-by: Arnd Bergmann <arnd@arndb.de>
2008-07-02mvme16x-rtc: BKL pushdownArnd Bergmann1-0/+4
Signed-off-by: Arnd Bergmann <arnd@arndb.de>
2008-07-02mousedev: BKL pushdownArnd Bergmann1-2/+10
Signed-off-by: Arnd Bergmann <arnd@arndb.de>
2008-07-02monwriter: BKL pushdownArnd Bergmann1-0/+3
Signed-off-by: Arnd Bergmann <arnd@arndb.de>
2008-07-02monreader: BKL pushdownArnd Bergmann1-0/+4
[jmc: added <linux/smp_lock.h>] Signed-off-by: Arnd Bergmann <arnd@arndb.de> Signed-off-by: Jonathan Corbet <corbet@lwn.net>
2008-06-20microcode: BKL pushdownArnd Bergmann1-0/+2
Signed-off-by: Arnd Bergmann <arnd@arndb.de>
2008-06-20message-i2o-i2o_config: BKL pushdownArnd Bergmann1-0/+2
Signed-off-by: Arnd Bergmann <arnd@arndb.de>
2008-06-20megaraid: BKL pushdownArnd Bergmann1-0/+2
Signed-off-by: Arnd Bergmann <arnd@arndb.de>
2008-06-20media-radio-miropcm20-rds: BKL pushdownArnd Bergmann1-0/+4
Signed-off-by: Arnd Bergmann <arnd@arndb.de>