snowball/igloo-kernel.git/drivers, branch caif

caif-shmcore: in tx check for buffer full condition

2012-05-22T09:07:31+00:00

There are 6 buffers and each buffer can be filled with 10 messages. The size of each buffer is 8k. In shm tx work function, 10 messages are written to the buffer, if the buffer gets filled during writing these 10 messages stop writing to buffer and use the next buffer. ST-Ericsson Linux next: NA ST-Ericsson ID: 375088 ST-Ericsson FOSS-OUT ID: Trivial Change-Id: I146d41e4e415c8ff96c605b4c20546ff7501442a Signed-off-by: Arun Murthy Reviewed-on: http://gerrit.lud.stericsson.com/gerrit/43350 Reviewed-by: Durga Prasada Rao BATHINA Reviewed-by: QABUILD Reviewed-by: Sjur BRENDELAND

caif-shmcore: increase the priority of flow control wq

2012-05-22T09:07:31+00:00

replace work queue with kthread workqueue for which the priority can be increased. Priority has to be increased, because ideally there the control information on flow ctrl i.e ON or OFF should reach caif with no delay. ST-Ericsson Linux next: NA ST-Ericsson ID: 372652 ST-Ericsson FOSS-OUT ID: Trivial Change-Id: I7a148b3277bcc885ade810df12b47c609a631e21 Signed-off-by: Arun Murthy Reviewed-on: http://gerrit.lud.stericsson.com/gerrit/42835 Reviewed-by: Hemant-vilas RAMDASI Reviewed-by: QABUILD Reviewed-by: QATEST Reviewed-by: Sjur BRENDELAND Reviewed-by: Srinidhi KASAGAR

caif-shm: synchronize caif flow control

2012-05-22T09:07:31+00:00

In the shm tx work function caif flow control is turned ON and without acquiring the spin lock. In the rx callback cail flow control is turned off. The expected sequence would be on caif writing message to modem via shm, if shm finds that there is no empty space then, it is not sets caif flow control to OFF. On shm receiving messages from modem, it sets caif flow control to ON. Now this since this is in interrupt context, there are chances of this fucntion being preeempted by the caif OFF that is being set in the tx work function. Hence create a seperate workqueue and two work functions to turn caif flow control ON and OFF. With this implementation it is ensured that caif flow control is turned OFF first by tx work function and turned ON by the rx callback. ST-Ericsson Linux next: NA ST-Ericsson ID: 372652 ST-Ericsson FOSS-OUT ID: Trivial Change-Id: Ide75415233d7b4560faf25862876c15421df7c2c Signed-off-by: Arun Murthy Reviewed-on: http://gerrit.lud.stericsson.com/gerrit/42438 Reviewed-by: QABUILD Reviewed-by: Hemant-vilas RAMDASI Reviewed-by: Sjur BRENDELAND

CAIF: Minor alignment with internal CAIF git

2012-05-22T09:07:31+00:00

Some added blank line and BUGON for CAIF serial. Change-Id: If3452ed104b93203fc86fe6a95fd957946447876 Signed-off-by: Erwan Bracq Reviewed-on: http://gerrit.lud.stericsson.com/gerrit/21527 Reviewed-by: QATEST Reviewed-by: Jonas ABERG

Merge branch 'for-linus' of git://git.kernel.dk/linux-block

2012-05-19T17:12:17+00:00

Pull block layer fixes from Jens Axboe: "A few small, but important fixes. Most of them are marked for stable as well - Fix failure to release a semaphore on error path in mtip32xx. - Fix crashable condition in bio_get_nr_vecs(). - Don't mark end-of-disk buffers as mapped, limit it to i_size. - Fix for build problem with CONFIG_BLOCK=n on arm at least. - Fix for a buffer overlow on UUID partition printing. - Trivial removal of unused variables in dac960." * 'for-linus' of git://git.kernel.dk/linux-block: block: fix buffer overflow when printing partition UUIDs Fix blkdev.h build errors when BLOCK=n bio allocation failure due to bio_get_nr_vecs() block: don't mark buffers beyond end of disk as mapped mtip32xx: release the semaphore on an error path dac960: Remove unused variables from DAC960_CreateProcEntries()

Merge tag 'dm-3.4-fixes-2' of git://git.kernel.org/pub/scm/linux/kernel/git/agk/linux-dm

2012-05-19T01:22:45+00:00

Pull a dm fix from Alasdair G Kergon: "A fix to the thin provisioning userspace interface." * tag 'dm-3.4-fixes-2' of git://git.kernel.org/pub/scm/linux/kernel/git/agk/linux-dm: dm thin: fix table output when pool target disables discard passdown internally

dm thin: fix table output when pool target disables discard passdown internally

2012-05-19T00:01:01+00:00

When the thin pool target clears the discard_passdown parameter internally, it incorrectly changes the table line reported to userspace. This breaks dumb string comparisons on these table lines in generic userspace device-mapper library code and leads to tables being reloaded repeatedly when nothing is actually meant to be changing. This patch corrects this by no longer changing the table line when discard passdown was disabled. We can still tell when discard passdown is overridden by looking for the message "Discard unsupported by data device (sdX): Disabling discard passdown." This automatic detection is also moved from the 'load' to the 'resume' so that it is re-evaluated should the properties of underlying devices change. Signed-off-by: Mike Snitzer Acked-by: Joe Thornber Signed-off-by: Alasdair G Kergon

Merge tag 'md-3.4-fixes' of git://neil.brown.name/md

2012-05-18T23:19:59+00:00

Pull one more md bugfix from NeilBrown: "Fix bug in recent fix to RAID10. Without this patch, recovery will crash" * tag 'md-3.4-fixes' of git://neil.brown.name/md: md/raid10: fix transcription error in calc_sectors conversion.

md/raid10: fix transcription error in calc_sectors conversion.

2012-05-18T23:01:13+00:00

The old code was sector_div(stride, fc); the new code was sector_dir(size, conf->near_copies); 'size' is right (the stride various wasn't really needed), but 'fc' means 'far_copies', and that is an important difference. Signed-off-by: NeilBrown

Merge branch 'akpm' (Andrew's patch-bomb)

2012-05-18T22:56:25+00:00

Merge misc fixes from Andrew Morton. * emailed from Andrew Morton : (4 patches) frv: delete incorrect task prototypes causing compile fail slub: missing test for partial pages flush work in flush_all() fs, proc: fix ABBA deadlock in case of execution attempt of map_files/ entries drivers/rtc/rtc-pl031.c: configure correct wday for 2000-01-01