Tejun Heo [Mon, 15 May 2006 11:58:16 +0000 (20:58 +0900)]
[PATCH] libata-eh-fw: update SCSI command completion path for new EH
SCSI command completion path used to do some part of EH including
printing messages and obtaining sense data. With new EH, all these
are responsibilities of the EH, update SCSI command completion path to
reflect this.
Signed-off-by: Tejun Heo <htejun@gmail.com>
Tejun Heo [Mon, 15 May 2006 11:58:14 +0000 (20:58 +0900)]
[PATCH] libata-eh-fw: update ata_exec_internal() for new EH
Update ata_exec_internal() such that it uses new EH framework.
->post_internal_cmd() is always invoked regardless of completion
status. Also, when ata_exec_internal() detects a timeout condition
and new EH is in place, it freezes the port as timeout for normal
commands would do.
Note that ata_port_flush_task() is called regardless of
wait_for_completion status. This is necessary as exceptions unrelated
to the qc can abort the qc, in which case PIO task could still be
running after the wait for completion returns.
Signed-off-by: Tejun Heo <htejun@gmail.com>
Tejun Heo [Mon, 15 May 2006 11:58:12 +0000 (20:58 +0900)]
[PATCH] libata-eh-fw: update ata_scsi_error() for new EH
Update ata_scsi_error() for new EH. ata_scsi_error() is responsible
for claiming timed out qcs and invoking ->error_handler in safe and
synchronized manner. As the state of the controller is unknown if a
qc has timed out, the port is frozen in such cases.
Note that ata_scsi_timed_out() isn't used for new EH. This is because
a timed out qc cannot be claimed by EH without freezing the port and
freezing the port in ata_scsi_timed_out() results in unnecessary
abortion of other active qcs. ata_scsi_timed_out() can be removed
once all drivers are converted to new EH.
While at it, add 'TODO: kill' comments to old EH functions.
Signed-off-by: Tejun Heo <htejun@gmail.com>
Tejun Heo [Mon, 15 May 2006 11:58:11 +0000 (20:58 +0900)]
[PATCH] libata-eh-fw: implement new EH scheduling from PIO
PIO executes without holding host_set lock, so it cannot be
synchronized using the same mechanism as interrupt driven execution.
port_task framework makes sure that EH is not entered until PIO task
is flushed, so PIO task can be sure the qc in progress won't go away
underneath it. One thing it cannot be sure of is whether the qc has
already been scheduled for EH by another exception condition while
host_set lock was released.
This patch makes ata_poll_qc-complete() handle such conditions
properly and make it freeze the port if HSM violation is detected
during PIO execution.
Signed-off-by: Tejun Heo <htejun@gmail.com>
Tejun Heo [Mon, 15 May 2006 11:58:09 +0000 (20:58 +0900)]
[PATCH] libata-eh-fw: implement freeze/thaw
Freezing is performed atomic w.r.t. host_set->lock and once frozen
LLDD is not allowed to access the port or any qc on it. Also, libata
makes sure that no new qc gets issued to a frozen port.
A frozen port is thawed after a reset operation completes
successfully, so reset methods must do its job while the port is
frozen. During initialization all ports get frozen before requesting
IRQ, so reset methods are always invoked on a frozen port.
Optional ->freeze and ->thaw operations notify LLDD that the port is
being frozen and thawed, respectively. LLDD can disable/enable
hardware interrupt in these callbacks if the controller's IRQ mask can
be changed dynamically. If the controller doesn't allow such
operation, LLDD can check for frozen state in the interrupt handler
and ack/clear interrupts unconditionally while frozen.
Signed-off-by: Tejun Heo <htejun@gmail.com>
Tejun Heo [Mon, 15 May 2006 11:58:07 +0000 (20:58 +0900)]
[PATCH] libata-eh-fw: implement ata_port_schedule_eh() and ata_port_abort()
ata_port_schedule_eh() directly schedules EH for @ap without
associated qc. Once EH scheduled, no further qc is allowed and EH
kicks in as soon as all currently active qc's are drained.
ata_port_abort() schedules all currently active commands for EH by
qc_completing them with ATA_QCFLAG_FAILED set. If ata_port_abort()
doesn't find any qc to abort, it directly schedule EH using
ata_port_schedule_eh().
These two functions provide ways to invoke EH for conditions which
aren't directly related to any specfic qc.
Signed-off-by: Tejun Heo <htejun@gmail.com>
Tejun Heo [Mon, 15 May 2006 11:58:05 +0000 (20:58 +0900)]
[PATCH] libata-eh-fw: implement new EH scheduling via error completion
There are several ways a qc can get schedule for EH in new EH. This
patch implements one of them - completing a qc with ATA_QCFLAG_FAILED
set or with non-zero qc->err_mask. ALL such qc's are examined by EH.
New EH schedules a qc for EH from completion iff ->error_handler is
implemented, qc is marked as failed or qc->err_mask is non-zero and
the command is not an internal command (internal cmd is handled via
->post_internal_cmd). The EH scheduling itself is performed by asking
SCSI midlayer to schedule EH for the specified scmd.
For drivers implementing old-EH, nothing changes. As this change
makes ata_qc_complete() rather large, it's not inlined anymore and
__ata_qc_complete() is exported to other parts of libata for later
use.
Signed-off-by: Tejun Heo <htejun@gmail.com>
Tejun Heo [Mon, 15 May 2006 11:58:03 +0000 (20:58 +0900)]
[PATCH] libata-eh-fw: update ata_qc_from_tag() to enforce normal/EH qc ownership
New EH framework has clear distinction about who owns a qc. Every qc
starts owned by normal execution path - PIO, interrupt or whatever.
When an exception condition occurs which affects the qc, the qc gets
scheduled for EH. Note that some events (say, link lost and regained,
command timeout) may schedule qc's which are not directly related but
could have been affected for EH too. Scheduling for EH is atomic
w.r.t. ap->host_set->lock and once schedule for EH, normal execution
path is not allowed to access the qc in whatever way. (PIO
synchronization acts a bit different and will be dealt with later)
This patch make ata_qc_from_tag() check whether a qc is active and
owned by normal path before returning it. If conditions don't match,
NULL is returned and thus access to the qc is denied.
__ata_qc_from_tag() is the original ata_qc_from_tag() and is used by
libata core/EH layers to access inactive/failed qc's.
This change is applied only if the associated LLDD implements new EH
as indicated by non-NULL ->error_handler
Signed-off-by: Tejun Heo <htejun@gmail.com>
Tejun Heo [Mon, 15 May 2006 11:58:02 +0000 (20:58 +0900)]
[PATCH] libata-eh-fw: use special reserved tag and qc for internal commands
New EH may issue internal commands to recover from error while failed
qc's are still hanging around. To allow such usage, reserve tag
ATA_MAX_QUEUE-1 for internal command. This also makes it easy to tell
whether a qc is for internal command or not. ata_tag_internal() test
implements this test.
To avoid breaking existing drivers, ata_exec_internal() uses
ATA_TAG_INTERNAL only for drivers which implement ->error_handler.
For drivers using old EH, tag 0 is used. Note that this makes
ata_tag_internal() test valid only when ->error_handler is
implemented. This is okay as drivers on old EH should not and does
not have any reason to use ata_tag_internal().
Signed-off-by: Tejun Heo <htejun@gmail.com>
Tejun Heo [Mon, 15 May 2006 11:58:00 +0000 (20:58 +0900)]
[PATCH] libata-eh-fw: clear SError in ata_std_postreset()
Clear SError in ata_std_postreset(). This is to clear SError bits
which get set during reset.
Signed-off-by: Tejun Heo <htejun@gmail.com>
Tejun Heo [Mon, 15 May 2006 11:57:58 +0000 (20:57 +0900)]
[PATCH] libata-eh-fw: add flags and operations for new EH
Add ATA_FLAG_EH_{PENDING|FROZEN}, ATA_ATA_QCFLAG_{FAILED|SENSE_VALID}
and ops->freeze, thaw, error_handler, post_internal_cmd() for new EH.
Signed-off-by: Tejun Heo <htejun@gmail.com>
Tejun Heo [Mon, 15 May 2006 11:57:56 +0000 (20:57 +0900)]
[PATCH] libata: use ATA printk helpers
Use ATA printk helpers.
Signed-off-by: Tejun Heo <htejun@gmail.com>
Tejun Heo [Mon, 15 May 2006 11:57:55 +0000 (20:57 +0900)]
[PATCH] libata: implement ATA printk helpers
Implement ata_{port|dev}_printk() which prefixes the message with
proper identification string. This change is necessary for later PM
support because devices and links should be identified differently
depending on how they are attached.
This also helps unifying device id strings. Currently, there are two
forms in use (P is the port number D device number) - 'ataP(D):', and
'ataP: dev D '. These macros also make it harder to forget proper ID
string (e.g. printing only port number when a device is in question).
Debug message handling can be integrated into these printk macros by
passing debug type and level via @lv.
Signed-off-by: Tejun Heo <htejun@gmail.com>
Tejun Heo [Mon, 15 May 2006 11:57:53 +0000 (20:57 +0900)]
[PATCH] libata: use dev->ap
Use dev->ap where possible and eliminate superflous @ap from functions
and structures.
Signed-off-by: Tejun Heo <htejun@gmail.com>
Tejun Heo [Mon, 15 May 2006 11:57:51 +0000 (20:57 +0900)]
[PATCH] libata: add dev->ap
Add dev->ap which points back to the port the device belongs to. This
makes it unnecessary to pass @ap for silly reasons (e.g. printks).
Also, this change is necessary to accomodate later PM support which
will introduce ATA link inbetween port and device.
Signed-off-by: Tejun Heo <htejun@gmail.com>
Tejun Heo [Mon, 15 May 2006 11:57:49 +0000 (20:57 +0900)]
[PATCH] libata: kill old SCR functions and sata_dev_present()
Kill now unused scr_{read|write|write_flush}() and sata_dev_present().
Signed-off-by: Tejun Heo <htejun@gmail.com>
Tejun Heo [Mon, 15 May 2006 11:57:47 +0000 (20:57 +0900)]
[PATCH] libata: use new SCR and on/offline functions
Use new SCR and on/offline functions. Note that for LLDD which know
it implements SCR callbacks, SCR functions are guaranteed to succeed
and ata_port_online() == !ata_port_offline().
Signed-off-by: Tejun Heo <htejun@gmail.com>
Tejun Heo [Mon, 15 May 2006 11:57:46 +0000 (20:57 +0900)]
[PATCH] libata: implement new SCR handling and port on/offline functions
Implement ata_scr_{valid|read|write|write_flush}() and
ata_port_{online|offline}(). These functions replace
scr_{read|write}() and sata_dev_present().
Major difference between between the new SCR functions and the old
ones is that the new ones have a way to signal error to the caller.
This makes handling SCR-available and SCR-unavailable cases in the
same path easier. Also, it eases later PM implementation where SCR
access can fail due to various reasons.
ata_port_{online|offline}() functions return 1 only when they are
affirmitive of the condition. e.g. if SCR is unaccessible or
presence cannot be determined for other reasons, these functions
return 0. So, ata_port_online() != !ata_port_offline(). This
distinction is useful in many exception handling cases.
Signed-off-by: Tejun Heo <htejun@gmail.com>
Tejun Heo [Mon, 15 May 2006 11:57:44 +0000 (20:57 +0900)]
[PATCH] libata: init ap->cbl to ATA_CBL_SATA early
Init ap->cbl to ATA_CBL_SATA in ata_host_init(). This is necessary
for soon-to-follow SCR handling function changes. LLDDs are free to
change ap->cbl during probing.
Signed-off-by: Tejun Heo <htejun@gmail.com>
Tejun Heo [Mon, 15 May 2006 11:57:42 +0000 (20:57 +0900)]
[PATCH] sata_sil24: update TF image only when necessary
Update TF image (pp->tf) only when necessary.
Signed-off-by: Tejun Heo <htejun@gmail.com>
Tejun Heo [Mon, 15 May 2006 11:57:40 +0000 (20:57 +0900)]
[PATCH] libata: implement qc->result_tf
Add qc->result_tf and ATA_QCFLAG_RESULT_TF. This moves the
responsibility of loading result TF from post-compltion path to qc
execution path. qc->result_tf is loaded if explicitly requested or
the qc failsa. This allows more efficient completion implementation
and correct handling of result TF for controllers which don't have
global TF representation such as sil3124/32.
Signed-off-by: Tejun Heo <htejun@gmail.com>
Tejun Heo [Mon, 15 May 2006 11:57:38 +0000 (20:57 +0900)]
[PATCH] libata: remove postreset handling from ata_do_reset()
Make ata_do_reset() deal only with reset. postreset is now the
responsibility of the caller. This is simpler and eases later
prereset addition.
Signed-off-by: Tejun Heo <htejun@gmail.com>
Tejun Heo [Mon, 15 May 2006 11:57:37 +0000 (20:57 +0900)]
[PATCH] libata: move ->set_mode() handling into ata_set_mode()
Move ->set_mode() handlng into ata_set_mode().
Signed-off-by: Tejun Heo <htejun@gmail.com>
Tejun Heo [Mon, 15 May 2006 11:57:35 +0000 (20:57 +0900)]
[PATCH] libata: use preallocated buffers
It's not a very good idea to allocate memory during EH. Use
statically allocated buffer for dev->id[] and add 512byte buffer
ap->sector_buf. This buffer is owned by EH (or probing) and to be
used as temporary buffer for various purposes (IDENTIFY, NCQ log page
10h, PM GSCR block).
Signed-off-by: Tejun Heo <htejun@gmail.com>
Tejun Heo [Mon, 15 May 2006 11:57:33 +0000 (20:57 +0900)]
[PATCH] libata: hold host_set lock while finishing internal qc
Hold host_set lock while finishing internal qc.
Signed-off-by: Tejun Heo <htejun@gmail.com>
Tejun Heo [Mon, 15 May 2006 11:57:32 +0000 (20:57 +0900)]
[PATCH] libata: clear ap->active_tag atomically w.r.t. command completion
ap->active_tag was cleared in ata_qc_free(). This left ap->active_tag
dangling after ata_qc_complete(). Spurious interrupts inbetween could
incorrectly access the qc. Clear active_tag in ata_qc_complete().
This change is necessary for later EH changes.
Signed-off-by: Tejun Heo <htejun@gmail.com>
Tejun Heo [Mon, 15 May 2006 11:57:30 +0000 (20:57 +0900)]
[PATCH] libata: fix ->phy_reset class code handling in ata_bus_probe()
ata_bus_probe() doesn't clear dev->class after ->phy_reset(). This
can result in falsely enabled devices if probing fails. Clear
dev->class to ATA_DEV_UNKNOWN after fetching it.
Signed-off-by: Tejun Heo <htejun@gmail.com>
Tejun Heo [Mon, 15 May 2006 11:57:28 +0000 (20:57 +0900)]
[PATCH] libata: kill duplicate prototypes
Kill duplicate prototypes for ata_eh_qc_complete/retry() in libata.h.
Signed-off-by: Tejun Heo <htejun@gmail.com>
Tejun Heo [Mon, 15 May 2006 11:57:27 +0000 (20:57 +0900)]
[PATCH] libata: unexport ata_scsi_error()
While moving ata_scsi_error() from LLDD sht to libata transportt,
EXPORT_SYMBOL_GPL() entry was left out. Kill it.
Signed-off-by: Tejun Heo <htejun@gmail.com>
Tejun Heo [Mon, 15 May 2006 11:57:25 +0000 (20:57 +0900)]
[PATCH] ahci: hardreset classification fix
AHCI calls ata_dev_classify() even when no device is attached which
results in false class code. Fix it.
Signed-off-by: Tejun Heo <htejun@gmail.com>
Tejun Heo [Mon, 15 May 2006 11:57:23 +0000 (20:57 +0900)]
[PATCH] libata: rename ata_down_sata_spd_limit() and friends
Rename ata_down_sata_spd_limit() and friends to sata_down_spd_limit()
and likewise for simplicity & consistency.
Signed-off-by: Tejun Heo <htejun@gmail.com>
Tejun Heo [Mon, 15 May 2006 11:57:21 +0000 (20:57 +0900)]
[PATCH] libata: silly fix in ata_scsi_start_stop_xlat()
Don't directly access &qc->tf when tf == &qc->tf.
Signed-off-by: Tejun Heo <htejun@gmail.com>
Tejun Heo [Mon, 15 May 2006 11:57:20 +0000 (20:57 +0900)]
[PATCH] SCSI: implement shost->host_eh_scheduled
libata needs to invoke EH without scmd. This patch adds
shost->host_eh_scheduled to implement such behavior.
Currently the only user of this feature is libata and no general
interface is defined. This patch simply adds handling for
host_eh_scheduled where needed and exports scsi_eh_wakeup() to
modules. The rest is upto libata. This is the result of the
following discussion.
http://thread.gmane.org/gmane.linux.scsi/23853/focus=9760
In short, SCSI host is not supposed to know about exceptions unrelated
to specific device or command. Such exceptions should be handled by
transport layer proper. However, the distinction is not essential to
ATA and libata is planning to depart from SCSI, so, for the time
being, libata will be using SCSI EH to handle such exceptions.
Signed-off-by: Tejun Heo <htejun@gmail.com>
Luben Tuikov [Mon, 15 May 2006 11:57:18 +0000 (20:57 +0900)]
[PATCH] SCSI: Introduce scsi_req_abort_cmd (REPOST)
Introduce scsi_req_abort_cmd(struct scsi_cmnd *).
This function requests that SCSI Core start recovery for the
command by deleting the timer and adding the command to the eh
queue. It can be called by either LLDDs or SCSI Core. LLDDs who
implement their own error recovery MAY ignore the timeout event if
they generated scsi_req_abort_cmd.
First post:
http://marc.theaimsgroup.com/?l=linux-scsi&m=
113833937421677&w=2
Signed-off-by: Luben Tuikov <ltuikov@yahoo.com>
Signed-off-by: Tejun Heo <htejun@gmail.com>
Jeff Garzik [Thu, 27 Apr 2006 08:53:34 +0000 (04:53 -0400)]
Merge branch 'master' into upstream
Linus Torvalds [Thu, 27 Apr 2006 02:19:25 +0000 (19:19 -0700)]
Linux v2.6.17-rc3
Linus Torvalds [Wed, 26 Apr 2006 22:45:27 +0000 (15:45 -0700)]
Merge master.kernel.org:/home/rmk/linux-2.6-mmc
* master.kernel.org:/home/rmk/linux-2.6-mmc:
[MMC] pxamci: fix data timeout calculation
Linus Torvalds [Wed, 26 Apr 2006 22:45:02 +0000 (15:45 -0700)]
Merge master.kernel.org:/home/rmk/linux-2.6-arm
* master.kernel.org:/home/rmk/linux-2.6-arm:
[ARM] nommu: trivial fixups for head-nommu.S and the Makefile
[ARM] vfp: fix leak of VFP_NAN_FLAG into FPSCR
[ARM] 3484/1: Correct AEABI CFLAGS for correct enum handling
Russell King [Wed, 26 Apr 2006 20:18:45 +0000 (21:18 +0100)]
Merge nommu tree
Chandra Seetharaman [Tue, 25 Apr 2006 02:35:21 +0000 (19:35 -0700)]
[PATCH] Remove __devinit and __cpuinit from notifier_call definitions
Few of the notifier_chain_register() callers use __init in the definition
of notifier_call. It is incorrect as the function definition should be
available after the initializations (they do not unregister them during
initializations).
This patch fixes all such usages to _not_ have the notifier_call __init
section.
Signed-off-by: Chandra Seetharaman <sekharan@us.ibm.com>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>
Chandra Seetharaman [Tue, 25 Apr 2006 02:35:15 +0000 (19:35 -0700)]
[PATCH] Remove __devinitdata from notifier block definitions
Few of the notifier_chain_register() callers use __devinitdata in the
definition of notifier_block data structure. It is incorrect as the
data structure should be available after the initializations (they do
not unregister them during initializations).
This was leading to an oops when notifier_chain_register() call is
invoked for those callback chains after initialization.
This patch fixes all such usages to _not_ have the notifier_block data
structure in the init data section.
Signed-off-by: Chandra Seetharaman <sekharan@us.ibm.com>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>
James Morris [Wed, 26 Apr 2006 06:45:03 +0000 (02:45 -0400)]
[PATCH] LSM: add missing hook to do_compat_readv_writev()
This patch addresses a flaw in LSM, where there is no mediation of readv()
and writev() in for 32-bit compatible apps using a 64-bit kernel.
This bug was discovered and fixed initially in the native readv/writev
code [1], but was not fixed in the compat code. Thanks to Al for spotting
this one.
[1] http://lwn.net/Articles/154282/
Signed-off-by: James Morris <jmorris@namei.org>
Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>
Al Viro [Wed, 26 Apr 2006 06:32:40 +0000 (07:32 +0100)]
[PATCH] protect ext3 ioctl modifying append_only, immutable, etc. with i_mutex
All modifications of ->i_flags in inodes that might be visible to
somebody else must be under ->i_mutex. That patch fixes ext3 ioctl()
setting S_APPEND and friends.
Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>
Al Viro [Wed, 26 Apr 2006 06:28:09 +0000 (07:28 +0100)]
[PATCH] fix mips sys32_p{read,write}
Switched to use of sys_pread64()/sys_pwrite64() rather than keep duplicating
their guts; among the little things that had been missing there were such as
ret = security_file_permission (file, MAY_READ);
Gotta love the LSM robustness, right?
Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>
Al Viro [Wed, 26 Apr 2006 06:26:09 +0000 (07:26 +0100)]
[PATCH] forgotten ->b_data in memcpy() call in ext3/resize.c (oopsable)
sbi->s_group_desc is an array of pointers to buffer_head. memcpy() of
buffer size from address of buffer_head is a bad idea - it will generate
junk in any case, may oops if buffer_head is close to the end of slab
page and next page is not mapped and isn't what was intended there.
IOW, ->b_data is missing in that call. Fortunately, result doesn't go
into the primary on-disk data structures, so only backup ones get crap
written to them; that had allowed this bug to remain unnoticed until
now.
Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>
Al Viro [Wed, 26 Apr 2006 06:20:48 +0000 (07:20 +0100)]
[PATCH] fix leak in activate_ep_files()
Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>
Linus Torvalds [Wed, 26 Apr 2006 14:47:55 +0000 (07:47 -0700)]
Merge branch 'splice' of git://brick.kernel.dk/data/git/linux-2.6-block
* 'splice' of git://brick.kernel.dk/data/git/linux-2.6-block:
[PATCH] splice: add ->splice_write support for /dev/null
[PATCH] splice: rearrange moving to/from pipe helpers
[PATCH] Add support for the sys_vmsplice syscall
[PATCH] splice: fix offset problems
[PATCH] splice: fix min() warning
Linus Torvalds [Wed, 26 Apr 2006 14:46:19 +0000 (07:46 -0700)]
Merge branch 'upstream-linus' of /linux/kernel/git/jgarzik/netdev-2.6
* 'upstream-linus' of master.kernel.org:/pub/scm/linux/kernel/git/jgarzik/netdev-2.6:
[PATCH] forcedeth: fix initialization
[PATCH] sky2: version 1.2
[PATCH] sky2: reset function can be devinit
[PATCH] sky2: use ALIGN() macro
[PATCH] sky2: add fake idle irq timer
[PATCH] sky2: reschedule if irq still pending
[PATCH] bcm43xx: make PIO mode usable
[PATCH] bcm43xx: add to MAINTAINERS
[PATCH] softmac: fix SIOCSIWAP
[PATCH] Fix crash on big-endian systems during scan
e1000: Update truesize with the length of the packet for packet split
[PATCH] Fix locking in gianfar
Linus Torvalds [Wed, 26 Apr 2006 14:45:57 +0000 (07:45 -0700)]
Merge /pub/scm/linux/kernel/git/davem/net-2.6
* master.kernel.org:/pub/scm/linux/kernel/git/davem/net-2.6:
[BRIDGE]: allow full size vlan packets
Jens Axboe [Wed, 26 Apr 2006 12:40:08 +0000 (14:40 +0200)]
[PATCH] splice: add ->splice_write support for /dev/null
Useful for testing.
Signed-off-by: Jens Axboe <axboe@suse.de>
Jens Axboe [Wed, 26 Apr 2006 12:39:29 +0000 (14:39 +0200)]
[PATCH] splice: rearrange moving to/from pipe helpers
We need these for people writing their own ->splice_read/write hooks.
Signed-off-by: Jens Axboe <axboe@suse.de>
Ayaz Abdulla [Mon, 24 Apr 2006 22:41:31 +0000 (18:41 -0400)]
[PATCH] forcedeth: fix initialization
This patch fixes the nic initialization. If the nic was in low power
mode, it brings it back to normal power. Also, it utilizes a new
hardware reset during the init.
I am resending based on feedback, I corrected the register size mapping
and delay after posted write.
Signed-Off-By: Ayaz Abdulla <aabdulla@nvidia.com>
Signed-off-by: Jeff Garzik <jeff@garzik.org>
Stephen Hemminger [Tue, 25 Apr 2006 17:58:54 +0000 (10:58 -0700)]
[PATCH] sky2: version 1.2
Update to version 1.2
Signed-off-by: Stephen Hemminger <shemminger@osdl.org>
Signed-off-by: Jeff Garzik <jeff@garzik.org>
Stephen Hemminger [Tue, 25 Apr 2006 17:58:53 +0000 (10:58 -0700)]
[PATCH] sky2: reset function can be devinit
The sky2_reset function only called from sky2_probe.
Maybe the compiler was smart enough to figure this out already.
Signed-off-by: Stephen Hemminger <shemminger@osdl.org>
Signed-off-by: Jeff Garzik <jeff@garzik.org>
Stephen Hemminger [Tue, 25 Apr 2006 17:58:52 +0000 (10:58 -0700)]
[PATCH] sky2: use ALIGN() macro
The ALIGN() macro in kernel.h does the same math that the
sky2 driver was using for padding.
Signed-off-by: Stephen Hemminger <shemminger@osdl.org>
Signed-off-by: Jeff Garzik <jeff@garzik.org>
Stephen Hemminger [Tue, 25 Apr 2006 17:58:51 +0000 (10:58 -0700)]
[PATCH] sky2: add fake idle irq timer
Add an fake NAPI schedule once a second. This is an attempt to work around
for broken configurations with edge-triggered interrupts.
Signed-off-by: Stephen Hemminger <shemminger@osdl.org>
Signed-off-by: Jeff Garzik <jeff@garzik.org>
Stephen Hemminger [Tue, 25 Apr 2006 17:58:50 +0000 (10:58 -0700)]
[PATCH] sky2: reschedule if irq still pending
This is a workaround for the case edge-triggered irq's. Several users
seem to have broken configurations sharing edge-triggered irq's. To avoid
losing IRQ's, reshedule if more work arrives.
The changes to netdevice.h are to extract the part that puts device
back in list into separate inline.
Signed-off-by: Stephen Hemminger <shemminger@osdl.org>
Signed-off-by: Jeff Garzik <jeff@garzik.org>
Jeff Garzik [Wed, 26 Apr 2006 10:16:50 +0000 (06:16 -0400)]
Merge branch 'upstream-fixes' of git://git./linux/kernel/git/linville/wireless-2.6 into upstream-fixes
Jeff Garzik [Wed, 26 Apr 2006 10:16:05 +0000 (06:16 -0400)]
Merge branch 'skb_truesize' of git://lost.foo-projects.org/~ahkok/git/linux-2.6 into upstream-fixes
Jeff Garzik [Wed, 26 Apr 2006 10:15:27 +0000 (06:15 -0400)]
Merge branch 'master' into upstream-fixes
Stephen Hemminger [Wed, 26 Apr 2006 09:39:19 +0000 (02:39 -0700)]
[BRIDGE]: allow full size vlan packets
Need to allow for VLAN header when bridging.
Signed-off-by: Stephen Hemminger <shemminger@osdl.org>
Signed-off-by: David S. Miller <davem@davemloft.net>
Jens Axboe [Wed, 26 Apr 2006 08:59:21 +0000 (10:59 +0200)]
[PATCH] Add support for the sys_vmsplice syscall
sys_splice() moves data to/from pipes with a file input/output. sys_vmsplice()
moves data to a pipe, with the input being a user address range instead.
This uses an approach suggested by Linus, where we can hold partial ranges
inside the pages[] map. Hopefully this will be useful for network
receive support as well.
Signed-off-by: Jens Axboe <axboe@suse.de>
Miklos Szeredi [Wed, 26 Apr 2006 08:49:26 +0000 (10:49 +0200)]
[doc] add paragraph about 'fs' subsystem to sysfs.txt
Signed-off-by: Miklos Szeredi <miklos@szeredi.hu>
Miklos Szeredi [Wed, 26 Apr 2006 08:49:16 +0000 (10:49 +0200)]
[fuse] fix race between checking and setting file->private_data
BKL does not protect against races if the task may sleep between
checking and setting a value. So move checking of file->private_data
near to setting it in fuse_fill_super().
Found by Al Viro.
Signed-off-by: Miklos Szeredi <miklos@szeredi.hu>
Miklos Szeredi [Wed, 26 Apr 2006 08:49:06 +0000 (10:49 +0200)]
[fuse] fix deadlock between fuse_put_super() and request_end(), try #2
A deadlock was possible, when the last reference to the superblock was
held due to a background request containing a file reference.
Releasing the file would release the vfsmount which in turn would
release the superblock. Since sbput_sem is held during the fput() and
fuse_put_super() tries to acquire this same semaphore, a deadlock
results.
The solution is to move the fput() outside the region protected by
sbput_sem.
Signed-off-by: Miklos Szeredi <miklos@szeredi.hu>
Miklos Szeredi [Wed, 26 Apr 2006 08:48:55 +0000 (10:48 +0200)]
Revert "[fuse] fix deadlock between fuse_put_super() and request_end()"
This reverts
73ce8355c243a434524a34c05cc417dd0467996e commit.
It was wrong, because it didn't take into account the requirement,
that iput() for background requests must be performed synchronously
with ->put_super(), otherwise active inodes may remain after unmount.
The right solution is to keep the sbput_sem and perform iput() within
the locked region, but move fput() outside sbput_sem.
Signed-off-by: Miklos Szeredi <miklos@szeredi.hu>
Jens Axboe [Tue, 25 Apr 2006 13:42:00 +0000 (15:42 +0200)]
[PATCH] splice: fix offset problems
Make the move_from_pipe() actors return number of bytes processed, then
move_from_pipe() can decide more cleverly when to move on to the next
buffer.
This fixes problems with pipe offset and differing file offset.
Signed-off-by: Jens Axboe <axboe@suse.de>
Andrew Morton [Tue, 25 Apr 2006 13:33:34 +0000 (15:33 +0200)]
[PATCH] splice: fix min() warning
Signed-off-by: Andrew Morton <akpm@osdl.org>
Signed-off-by: Jens Axboe <axboe@suse.de>
Auke Kok [Wed, 26 Apr 2006 05:50:04 +0000 (22:50 -0700)]
e1000: Update truesize with the length of the packet for packet split
Update skb with the real packet size.
Signed-off-by: Jesse Brandeburg <jesse.brandeburg@intel.com>
Signed-off-by: Auke Kok <auke-jan.h.kok@intel.com>
Signed-off-by: John Ronciak <john.ronciak@intel.com>
Russell King [Tue, 25 Apr 2006 19:41:27 +0000 (20:41 +0100)]
[ARM] vfp: fix leak of VFP_NAN_FLAG into FPSCR
The VFP code can leak VFP_NAN_FLAG into the FPSCR. It doesn't correspond
to any real FPSCR bit (and overlaps one of the exception flags).
Bug report from Daniel Jacobowitz
Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
Richard Purdie [Tue, 25 Apr 2006 19:36:04 +0000 (20:36 +0100)]
[ARM] 3484/1: Correct AEABI CFLAGS for correct enum handling
Patch from Richard Purdie
The AAPCS says that enums can be variably sized depending on the range
of valid values. This is not the accepted behaviour under linux so for
compatibility gcc has an aapcs-linux target, the main difference being
that enums are always of type int. Change the ARM Makefile to use this
target.
Signed-off-by: Richard Purdie <rpurdie@rpsys.net>
Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
Ivan Kokshaysky [Tue, 25 Apr 2006 09:45:19 +0000 (13:45 +0400)]
[PATCH] Alpha: strncpy() fix
As it turned out after recent SCSI changes, strncpy() was broken -
it mixed up the return values from __stxncpy() in registers $24 and $27.
Thanks to Mathieu Chouquet-Stringer for tracking down the problem
and providing an excellent test case.
Signed-off-by: Ivan Kokshaysky <ink@jurassic.park.msu.ru>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>
Linus Torvalds [Tue, 25 Apr 2006 03:08:08 +0000 (20:08 -0700)]
Merge /linux/kernel/git/sfrench/cifs-2.6-stable
* master.kernel.org:/pub/scm/linux/kernel/git/sfrench/cifs-2.6-stable:
[CIFS] Fix compile error when CONFIG_CIFS_EXPERIMENTAL is undefined
Patrick McHardy [Tue, 25 Apr 2006 00:18:59 +0000 (17:18 -0700)]
[NETFILTER]: ipt action: use xt_check_target for basic verification
The targets don't do the basic verification themselves anymore so
the ipt action needs to take care of it.
Signed-off-by: Patrick McHardy <kaber@trash.net>
Signed-off-by: David S. Miller <davem@davemloft.net>
Dmitry Mishin [Tue, 25 Apr 2006 00:18:25 +0000 (17:18 -0700)]
[NETFILTER]: x_tables: move table->lock initialization
xt_table->lock should be initialized before xt_replace_table() call, which
uses it. This patch removes strict requirement that table should define
lock before registering.
Signed-off-by: Dmitry Mishin <dim@openvz.org>
Signed-off-by: Kirill Korotaev <dev@openvz.org>
Signed-off-by: Patrick McHardy <kaber@trash.net>
Signed-off-by: David S. Miller <davem@davemloft.net>
Patrick McHardy [Tue, 25 Apr 2006 00:17:49 +0000 (17:17 -0700)]
[NETFILTER]: ip6_tables: remove broken comefrom debugging
The introduction of x_tables broke comefrom debugging, remove it from
ip6_tables as well (ip_tables already got removed).
Signed-off-by: Patrick McHardy <kaber@trash.net>
Signed-off-by: David S. Miller <davem@davemloft.net>
Yasuyuki Kozakai [Tue, 25 Apr 2006 00:16:59 +0000 (17:16 -0700)]
[NETFILTER]: nf_conntrack: kill unused callback init_conntrack
Signed-off-by: Yasuyuki Kozakai <yasuyuki.kozakai@toshiba.co.jp>
Signed-off-by: Patrick McHardy <kaber@trash.net>
Signed-off-by: David S. Miller <davem@davemloft.net>
Patrick McHardy [Tue, 25 Apr 2006 00:16:28 +0000 (17:16 -0700)]
[NETFILTER]: Fix compat_xt_counters alignment for non-x86
Some (?) non-x86 architectures require 8byte alignment for u_int64_t
even when compiled for 32bit, using u_int32_t in compat_xt_counters
breaks on these architectures, use u_int64_t for everything but x86.
Reported by Andreas Schwab <schwab@suse.de>.
Signed-off-by: Patrick McHardy <kaber@trash.net>
Signed-off-by: David S. Miller <davem@davemloft.net>
Thomas Voegtle [Tue, 25 Apr 2006 00:15:54 +0000 (17:15 -0700)]
[NETFILTER]: ULOG target is not obsolete
The backend part is obsoleted, but the target itself is still needed.
Signed-off-by: Thomas Voegtle <tv@lio96.de>
Signed-off-by: Patrick McHardy <kaber@trash.net>
Signed-off-by: David S. Miller <davem@davemloft.net>
Yasuyuki Kozakai [Tue, 25 Apr 2006 00:15:17 +0000 (17:15 -0700)]
[NETFILTER]: nf_conntrack: Fix module refcount dropping too far
If nf_ct_l3proto_find_get() fails to get the refcount of
nf_ct_l3proto_generic, nf_ct_l3proto_put() will drop the refcount
too far.
This gets rid of '.me = THIS_MODULE' of nf_ct_l3proto_generic so that
nf_ct_l3proto_find_get() doesn't try to get refcount of it.
It's OK because its symbol is usable until nf_conntrack.ko is unloaded.
This also kills unnecessary NULL pointer check as well.
__nf_ct_proto_find() allways returns non-NULL pointer.
Signed-off-by: Yasuyuki Kozakai <yasuyuki.kozakai@toshiba.co.jp>
Signed-off-by: Patrick McHardy <kaber@trash.net>
Signed-off-by: David S. Miller <davem@davemloft.net>
OGAWA Hirofumi [Mon, 24 Apr 2006 20:48:51 +0000 (13:48 -0700)]
[SPARC]: __NR_sys removal
__NR_sys_sync_file_range part was lost somewhere...
[glibc is already checking __NR_sync_file_range]
Signed-off-by: OGAWA Hirofumi <hirofumi@mail.parknet.co.jp>
Signed-off-by: David S. Miller <davem@davemloft.net>
Michael Buesch [Sun, 23 Apr 2006 11:23:10 +0000 (13:23 +0200)]
[PATCH] bcm43xx: make PIO mode usable
This patch fixes PIO mode on the softmac bcm43xx
driver. (A dscape patch will follow).
It mainly fixes endianess issues.
This patch is tested on PowerPC32 and i386.
Signed-off-by: Michael Buesch <mb@bu3sch.de>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
Michael Buesch [Sat, 22 Apr 2006 15:31:27 +0000 (17:31 +0200)]
[PATCH] bcm43xx: add to MAINTAINERS
Signed-off-by: John W. Linville <linville@tuxdriver.com>
Johannes Berg [Thu, 20 Apr 2006 18:02:03 +0000 (20:02 +0200)]
[PATCH] softmac: fix SIOCSIWAP
There are some bugs in the current implementation of the SIOCSIWAP wext,
for example that when you do it twice and it fails, it may still try
another access point for some reason. This patch fixes this by introducing
a new flag that tells the association code that the bssid that is in use
was fixed by the user and shouldn't be deviated from.
Signed-off-by: Johannes Berg <johannes@sipsolutions.net>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
Pavel Roskin [Mon, 17 Apr 2006 15:36:43 +0000 (11:36 -0400)]
[PATCH] Fix crash on big-endian systems during scan
The original code was doing arithmetics on a little-endian value.
Reported by Stelios Koroneos <stelios@stelioscellar.com>
Signed-off-by: Pavel Roskin <proski@gnu.org>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
Steve French [Mon, 24 Apr 2006 16:24:54 +0000 (16:24 +0000)]
[CIFS] Fix compile error when CONFIG_CIFS_EXPERIMENTAL is undefined
Signed-off-by: Dave Kleikamp <shaggy@austin.ibm.com>
Signed-off-by: Steve French <sfrench@us.ibm.com>
Russell King [Mon, 24 Apr 2006 10:27:02 +0000 (11:27 +0100)]
[MMC] pxamci: fix data timeout calculation
The MMC layer gives us two parts for the timeout calculation - a fixed
timeout in nanoseconds, and a card clock-speed dependent part.
The PXA MMC hardware allows for a timeout based on the fixed host clock
speed only. This resulted in some cards being given a short timeout,
and therefore failing to work.
Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
Hyok S. Choi [Mon, 24 Apr 2006 08:45:35 +0000 (09:45 +0100)]
[ARM] nommu: trivial fixups for head-nommu.S and the Makefile
This patch fix compilation problem of start-up codes.
(head-nommu.S, arch/arm/kernel/Makefile)
Signed-off-by: Hyok S. Choi <hyok.choi@samsung.com>
Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
Linus Torvalds [Sun, 23 Apr 2006 16:44:10 +0000 (09:44 -0700)]
Merge git://git./linux/kernel/git/kyle/parisc-2.6
* git://git.kernel.org/pub/scm/linux/kernel/git/kyle/parisc-2.6:
[PARISC] MAINTAINERS
[PARISC] Make ioremap default to _nocache
[PARISC] Add new entries to the syscall table
[PARISC] Further work for multiple page sizes
[PARISC] Fix up hil_kbd.c mismerge
[PARISC] defconfig updates
[PARISC] Document that we tolerate "Relaxed Ordering"
[PARISC] Misc. janitorial work
[PARISC] EISA regions must be mapped NO_CACHE
[PARISC] OSS ad1889: Match register names with ALSA driver
Linus Torvalds [Sun, 23 Apr 2006 16:43:21 +0000 (09:43 -0700)]
Merge git://git./linux/kernel/git/brodo/pcmcia-fixes-2.6
* git://git.kernel.org/pub/scm/linux/kernel/git/brodo/pcmcia-fixes-2.6:
[PATCH] pcmcia/pcmcia_resource.c: fix crash when using Cardbus cards
[PATCH] vrc4171: update config
[PATCH] pcmcia: fix oops in static mapping case
[PATCH] pcmcia: remove unneeded forward declarations
[PATCH] pcmcia: do not set dev_node to NULL too early
[PATCH] pcmcia: fix comment for pcmcia_load_firmware
[PATCH] pcmcia: unload second device first
[PATCH] pcmcia: add new ID to pcnet_cs
Linus Torvalds [Sun, 23 Apr 2006 16:41:20 +0000 (09:41 -0700)]
Merge branch 'drm-patches' of git://git./linux/kernel/git/airlied/drm-2.6
* 'drm-patches' of git://git.kernel.org/pub/scm/linux/kernel/git/airlied/drm-2.6:
drm: possible cleanups
drm: fixup r300 scratch on BE machines
Linus Torvalds [Sun, 23 Apr 2006 16:38:09 +0000 (09:38 -0700)]
Merge /linux/kernel/git/sfrench/cifs-2.6-stable
* master.kernel.org:/pub/scm/linux/kernel/git/sfrench/cifs-2.6-stable:
[CIFS] Fix typo in previous
[CIFS] Readdir fixes to allow search to start at arbitrary position
[CIFS] Use the kthread_ API instead of opencoding lots of hairy code for kernel
[CIFS] Don't allow a backslash in a path component
[CIFS] [CIFS] Do not take rename sem on most path based calls (during
Linus Torvalds [Sun, 23 Apr 2006 16:36:31 +0000 (09:36 -0700)]
Merge git://git./linux/kernel/git/paulus/powerpc-merge
* git://git.kernel.org/pub/scm/linux/kernel/git/paulus/powerpc-merge:
powerpc: Fix define_machine so machine_is() works from modules
powerpc/ppc: export strncasecmp
[PATCH] powerpc: fix oops in alsa powermac driver
[PATCH] powerpc: update {g5,iseries,pseries}_defconfigs
[PATCH] ppc: Fix powersave code on arch/ppc
[PATCH] powerpc/cell: remove BUILD_BUG_ON and add sys_tee to spu_syscall_table
[PATCH] powermac: Fix i2c on keywest based chips
[PATCH] powerpc: Lower threshold for DART enablement to 1GB
[PATCH] powerpc: IOMMU support for honoring dma_mask
Dave Airlie [Sun, 23 Apr 2006 08:26:40 +0000 (18:26 +1000)]
drm: possible cleanups
This patch contains the following possible cleanups:
- make the following needlessly global function static:
- drm_bufs.c: drm_addbufs_fb()
- remove the following unused EXPORT_SYMBOL's:
- drm_agpsupport.c: drm_agp_bind_memory
- drm_bufs.c: drm_rmmap_locked
- drm_bufs.c: drm_rmmap
- drm_stub.c: drm_get_dev
Signed-off-by: Adrian Bunk <bunk@stusta.de>
Signed-off-by: Dave Airlie <airlied@linux.ie>
Dave Airlie [Sun, 23 Apr 2006 08:14:00 +0000 (18:14 +1000)]
drm: fixup r300 scratch on BE machines
This fixes the r300 scratch stuff to work on PPC,
from Ben Herrenschmidt on IRC.
Signed-off-by: Dave Airlie <airlied@linux.ie>
Steve French [Sun, 23 Apr 2006 01:54:50 +0000 (01:54 +0000)]
[CIFS] Fix typo in previous
Signed-off-by: Steve French <sfrench@us.ibm.com>
Paul Mackerras [Sun, 23 Apr 2006 00:42:04 +0000 (10:42 +1000)]
powerpc: Fix define_machine so machine_is() works from modules
machine_is() was always returning 0 when used in a module, because
we weren't exporting the machine definitions. This was why sound
wasn't working on powermacs when CONFIG_SND_POWERMAC=m. Original
fix from Ben Herrenschmidt, further fixed by me.
Signed-off-by: Paul Mackerras <paulus@samba.org>
Kylene Jo Hall [Sat, 22 Apr 2006 09:39:52 +0000 (02:39 -0700)]
[PATCH] tpm: add HID module parameter
I recently found that not all BIOS manufacturers are using the specified
generic PNP id in their TPM ACPI table entry. I have added the vendor
specific IDs that I know about and added a module parameter that a user can
specify another HID to the probe list if their device isn't being found by the
default list.
Signed-off-by: Kylene Hall <kjhall@us.ibm.com>
Signed-off-by: Andrew Morton <akpm@osdl.org>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>
Kylene Jo Hall [Sat, 22 Apr 2006 09:39:44 +0000 (02:39 -0700)]
[PATCH] tpm: add interrupt module parameter
This patch adds a boolean module parameter that allows the user to turn
interrupt support on and off. The default behavior is to attempt to use
interrupts.
Signed-off-by: Kylene Hall <kjhall@us.ibm.com>
Signed-off-by: Andrew Morton <akpm@osdl.org>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>
Kylene Jo Hall [Sat, 22 Apr 2006 09:39:31 +0000 (02:39 -0700)]
[PATCH] tpm: spacing cleanups 2
Fixes minor spacing issues.
Signed-off-by: Kylene Hall <kjhall@us.ibm.com>
Signed-off-by: Andrew Morton <akpm@osdl.org>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>
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