16 Nov, 2011
6 commits
-
This is just a cleanup patch to silence a static checker warning.
The problem is that we cap "nr_iovecs" so it can't be larger than
"UIO_MAXIOV" but we don't check for negative values. It turns out this is
prevented at other layers, but logically it doesn't make sense to have
negative nr_iovecs so making it unsigned is nicer.Signed-off-by: Dan Carpenter
Signed-off-by: Andrew Morton
Signed-off-by: Jens Axboe -
get_request_wait() could sleep and flush the plug list. If the list is
already flushed, don't flush again.Signed-off-by: Shaohua Li
Reviewed-by: Namhyung Kim
Signed-off-by: Andrew Morton
Signed-off-by: Jens Axboe -
A long time ago, probably in 2002, one of the distros, or maybe more than
one, loaded block drivers prior to loading the SCSI mid layer. This meant
that the cciss driver, being a block driver, could not engage the SCSI mid
layer at init time without panicking, and relied on being poked by a
userland program after the system was up (and the SCSI mid layer was
therefore present) to engage the SCSI mid layer.This is no longer the case, and cciss can safely rely on the SCSI mid
layer being present at init time and engage the SCSI mid layer straight
away. This means that users will see their tape drives and medium
changers at driver load time without need for a script in /etc/rc.d that
does this:for x in /proc/driver/cciss/cciss*
do
echo "engage scsi" > $x
doneHowever, if no tape drives or medium changers are detected, the SCSI mid
layer will not be engaged. If a tape drive or medium change is later
hot-added to the system it will then be necessary to use the above script
or similar for the device(s) to be acceesible.Signed-off-by: Stephen M. Cameron
Signed-off-by: Andrew Morton
Signed-off-by: Jens Axboe -
1) Anyone who has read access to loopdev has permission to call set_status
and may change important parameters such as lo_offset, lo_sizelimit and
so on, which contradicts to read access pattern and definitely equals
to write access pattern.
2) Add lo_offset over i_size check to prevent blkdev_size overflow.
##Testcase_bagin
#dd if=/dev/zero of=./file bs=1k count=1
#losetup /dev/loop0 ./file
/* userspace_application */
struct loop_info64 loinf;
fd = open("/dev/loop0", O_RDONLY);
ioctl(fd, LOOP_GET_STATUS64, &loinf);
/* Set offset to any value which is bigger than i_size, and sizelimit
* to nonzero value*/
loinf.lo_offset = 4096*1024;
loinf.lo_sizelimit = 1024;
ioctl(fd, LOOP_SET_STATUS64, &loinf);
/* After this loop device will have size similar to 0x7fffffffffxxxx */
#blockdev --getsz /dev/loop0
##OUTPUT: 36028797018955968
##Testcase_end[akpm@linux-foundation.org: coding-style fixes]
Signed-off-by: Dmitry Monakhov
Signed-off-by: Andrew Morton
Signed-off-by: Jens Axboe -
When CONFIG_BLK_DEV_INTEGRITY is not set, we get these warnings:
drivers/md/dm.c: In function 'split_bvec':
drivers/md/dm.c:1061:3: warning: statement with no effect
drivers/md/dm.c: In function 'clone_bio':
drivers/md/dm.c:1088:3: warning: statement with no effectSigned-off-by: Stephen Rothwell
Signed-off-by: Andrew Morton
Signed-off-by: Jens Axboe -
If read was not fully successful we have to fail whole bio to prevent
information leak of old pages##Testcase_begin
dd if=/dev/zero of=./file bs=1M count=1
losetup /dev/loop0 ./file -o 4096
truncate -s 0 ./file
# OOps loop offset is now beyond i_size, so read will silently fail.
# So bio's pages would not be cleared, may which result in information leak.
hexdump -C /dev/loop0
##testcase_endSigned-off-by: Dmitry Monakhov
Signed-off-by: Andrew Morton
Signed-off-by: Jens Axboe
14 Nov, 2011
1 commit
-
Even after commit 5478755616ae2ef1ce144dded589b62b2a50d575
("block: check for proper length of iov entries earlier ...")
we still won't check for zero-length entries after an unaligned
entry. Remove the break-statement, so all entries are checked.Signed-off-by: Ben Hutchings
Cc: stable@vger.kernel.org
Signed-off-by: Jens Axboe
12 Nov, 2011
1 commit
-
Signed-off-by: Matthew Garrett
Cc: iss_storagedev@hp.com
Acked-by: Mike Miller
Signed-off-by: Jens Axboe
11 Nov, 2011
1 commit
-
bdi_prune_sb() in bdi_unregister() attempts to removes the bdi links
from all super_blocks and then del_timer_sync() the writeback timer.However, this can race with __mark_inode_dirty(), leading to
bdi_wakeup_thread_delayed() rearming the writeback timer on the bdi
we're unregistering, after we've called del_timer_sync().This can end up with the bdi being freed with an active timer inside it,
as in the case of the following dump after the removal of an SD card.Fix this by redoing the del_timer_sync() in bdi_destory().
------------[ cut here ]------------
WARNING: at /home/rabin/kernel/arm/lib/debugobjects.c:262 debug_print_object+0x9c/0xc8()
ODEBUG: free active (active state 0) object type: timer_list hint: wakeup_timer_fn+0x0/0x180
Modules linked in:
Backtrace:
[] (dump_backtrace+0x0/0x110) from [] (dump_stack+0x18/0x1c)
r6:c02bc638 r5:00000106 r4:c79f5d18 r3:00000000
[] (dump_stack+0x0/0x1c) from [] (warn_slowpath_common+0x54/0x6c)
[] (warn_slowpath_common+0x0/0x6c) from [] (warn_slowpath_fmt+0x38/0x40)
r8:20000013 r7:c780c6f0 r6:c031613c r5:c780c6f0 r4:c02b1b29
r3:00000009
[] (warn_slowpath_fmt+0x0/0x40) from [] (debug_print_object+0x9c/0xc8)
r3:c02b1b29 r2:c02bc662
[] (debug_print_object+0x0/0xc8) from [] (debug_check_no_obj_freed+0xac/0x1dc)
r6:c7964000 r5:00000001 r4:c7964000
[] (debug_check_no_obj_freed+0x0/0x1dc) from [] (kmem_cache_free+0x88/0x1f8)
[] (kmem_cache_free+0x0/0x1f8) from [] (blk_release_queue+0x70/0x78)
[] (blk_release_queue+0x0/0x78) from [] (kobject_release+0x70/0x84)
r5:c79641f0 r4:c796420c
[] (kobject_release+0x0/0x84) from [] (kref_put+0x68/0x80)
r7:00000083 r6:c74083d0 r5:c015289c r4:c796420c
[] (kref_put+0x0/0x80) from [] (kobject_put+0x48/0x5c)
r5:c79643b4 r4:c79641f0
[] (kobject_put+0x0/0x5c) from [] (blk_cleanup_queue+0x68/0x74)
r4:c7964000
[] (blk_cleanup_queue+0x0/0x74) from [] (mmc_blk_put+0x78/0xe8)
r5:00000000 r4:c794c400
[] (mmc_blk_put+0x0/0xe8) from [] (mmc_blk_release+0x24/0x38)
r5:c794c400 r4:c0322824
[] (mmc_blk_release+0x0/0x38) from [] (__blkdev_put+0xe8/0x170)
r5:c78d5e00 r4:c74083c0
[] (__blkdev_put+0x0/0x170) from [] (blkdev_put+0x11c/0x12c)
r8:c79f5f70 r7:00000001 r6:c74083d0 r5:00000083 r4:c74083c0
r3:00000000
[] (blkdev_put+0x0/0x12c) from [] (kill_block_super+0x60/0x6c)
r7:c7942300 r6:c79f4000 r5:00000083 r4:c74083c0
[] (kill_block_super+0x0/0x6c) from [] (deactivate_locked_super+0x44/0x70)
r6:c79f4000 r5:c031af64 r4:c794dc00 r3:c00b06c4
[] (deactivate_locked_super+0x0/0x70) from [] (deactivate_super+0x6c/0x70)
r5:c794dc00 r4:c794dc00
[] (deactivate_super+0x0/0x70) from [] (mntput_no_expire+0x188/0x194)
r5:c794dc00 r4:c7942300
[] (mntput_no_expire+0x0/0x194) from [] (sys_umount+0x2e4/0x310)
r6:c7942300 r5:00000000 r4:00000000 r3:00000000
[] (sys_umount+0x0/0x310) from [] (ret_fast_syscall+0x0/0x30)
---[ end trace e5c83c92ada51c76 ]---Cc: stable@kernel.org
Signed-off-by: Rabin Vincent
Signed-off-by: Linus Walleij
Signed-off-by: Jens Axboe
10 Nov, 2011
1 commit
-
This reverts commit a72c5e5eb738033938ab30d6a634b74d1d060f10.
The commit introduced alias for block devices which is intended to be
used during logging although actual usage hasn't been committed yet.
This approach adds very limited benefit (raw log might be easier to
follow) which can be trivially implemented in userland but has a lot
of problems.It is much worse than netif renames because it doesn't rename the
actual device but just adds conveninence name which isn't used
universally or enforced. Everything internal including device lookup
and sysfs still uses the internal name and nothing prevents two
devices from using conflicting alias - ie. sda can have sdb as its
alias.This has been nacked by people working on device driver core, block
layer and kernel-userland interface and shouldn't have been
upstreamed. Revert it.http://thread.gmane.org/gmane.linux.kernel/1155104
http://thread.gmane.org/gmane.linux.scsi/68632
http://thread.gmane.org/gmane.linux.scsi/69776Signed-off-by: Tejun Heo
Acked-by: Greg Kroah-Hartman
Acked-by: Kay Sievers
Cc: "James E.J. Bottomley"
Cc: Nao Nishijima
Cc: Alan Cox
Cc: Al Viro
Signed-off-by: Jens Axboe
08 Nov, 2011
28 commits
-
.. with new name. Because nothing says "really solid kernel release"
like naming it after an extinct animal that just happened to be in the
news lately. -
* 'fixes' of git://git.kernel.org/pub/scm/linux/kernel/git/tmlind/linux-omap: (31 commits)
ARM: OMAP: Fix export.h or module.h includes
ARM: OMAP: omap_device: Include linux/export.h
ARM: OMAP2: Fix H4 matrix keyboard warning
ARM: OMAP1: Remove unused omap-alsa.h
ARM: OMAP1: Fix warnings about enabling 32 KiHz timer
ARM: OMAP2+: timer: Remove omap_device_pm_latency
ARM: OMAP2+: clock data: Remove redundant timer clkdev
ARM: OMAP: Devkit8000: Remove double omap_mux_init_gpio
ARM: OMAP: usb: musb: OMAP: Delete unused function
MAINTAINERS: Update linux-omap git repository
ARM: OMAP: change get_context_loss_count ret value to int
ARM: OMAP4: hsmmc: configure SDMMC1_DR0 properly
ARM: OMAP4: hsmmc: Fix Pbias configuration on regulator OFF
ARM: OMAP3: hwmod: fix variant registration and remove SmartReflex from common list
ARM: OMAP: I2C: Fix omap_register_i2c_bus() return value on success
ARM: OMAP: dmtimer: Include linux/module.h
ARM: OMAP2+: l3-noc: Include linux/module.h
ARM: OMAP2+: devices: Fixes for McPDM
ARM: OMAP: Fix errors and warnings when building for one board
ARM: OMAP3: PM: restrict erratum i443 handling to OMAP3430 only
... -
Mountpoint crossing is similar to following procfs symlinks - we do
not get ->d_revalidate() called for dentry we have arrived at, with
unpleasant consequences for NFS4.Simple way to reproduce the problem in mainline:
cat >/tmp/a.c <
#include
#include
main()
{
struct flock fl = {.l_type = F_RDLCK, .l_whence = SEEK_SET, .l_len = 1};
if (fcntl(0, F_SETLK, &fl))
perror("setlk");
}
EOF
cc /tmp/a.c -o /tmp/testthen on nfs4:
mount --bind file1 file2
/tmp/test < file1 # ok
/tmp/test < file2 # spews "setlk: No locks available"...What happens is the missing call of ->d_revalidate() after mountpoint
crossing and that's where NFS4 would issue OPEN request to server.The fix is simple - treat mountpoint crossing the same way we deal with
following procfs-style symlinks. I.e. set LOOKUP_JUMPED...Cc: stable@kernel.org
Signed-off-by: Al Viro
Signed-off-by: Linus Torvalds -
* 'perf-urgent-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip:
perf top: Fix live annotation in the --stdio interface
perf top tui: Don't recalc column widths considering just the first page
perf report: Add progress bar when processing time ordered events
perf hists browser: Warn about lost events
perf tools: Fix a typo of command name as trace-cmd
perf hists: Fix recalculation of total_period when sorting entries
perf header: Fix build on old systems
perf ui browser: Handle K_RESIZE in dialog windows
perf ui browser: No need to switch char sets that often
perf hists browser: Use K_TIMER
perf ui: Rename ui__warning_paranoid to ui__error_paranoid
perf ui: Reimplement the popup windows using libslang
perf ui: Reimplement ui__popup_menu using ui__browser
perf ui: Reimplement ui_helpline using libslang
perf ui: Improve handling sigwinch a bit
perf ui progress: Reimplement using slang
perf evlist: Fix grouping of multiple events -
Commit 32aaeffbd4a7457bf2f7448b33b5946ff2a960eb (Merge branch
'modsplit-Oct31_2011'...) caused some build errors. Fix these
and make sure we always have export.h or module.h included
for MODULE_ and EXPORT_SYMBOL users:$ grep -rl ^MODULE_ arch/arm/*omap*/*.c | xargs \
grep -L linux/module.h
arch/arm/mach-omap2/dsp.c
arch/arm/mach-omap2/mailbox.c
arch/arm/mach-omap2/omap-iommu.c
arch/arm/mach-omap2/smartreflex.cAlso check we either have export.h or module.h included
for the files exporting symbols:$ grep -rl EXPORT_SYMBOL arch/arm/*omap*/*.c | xargs \
grep -L linux/export.h | xargs grep -L linux/module.hCc: Russell King
Signed-off-by: Tony Lindgren -
Include linux/export.h to fix below build warning:
CC arch/arm/plat-omap/omap_device.o
arch/arm/plat-omap/omap_device.c:1055: warning: data definition has no type or storage class
arch/arm/plat-omap/omap_device.c:1055: warning: type defaults to 'int' in declaration of 'EXPORT_SYMBOL'
arch/arm/plat-omap/omap_device.c:1055: warning: parameter names (without types) in function declarationSigned-off-by: Axel Lin
Signed-off-by: Tony Lindgren -
* git://git.kernel.org/pub/scm/linux/kernel/git/davem/net: (47 commits)
forcedeth: fix a few sparse warnings (variable shadowing)
forcedeth: Improve stats counters
forcedeth: remove unneeded stats updates
forcedeth: Acknowledge only interrupts that are being processed
forcedeth: fix race when unloading module
MAINTAINERS/rds: update maintainer
wanrouter: Remove kernel_lock annotations
usbnet: fix oops in usbnet_start_xmit
ixgbe: Fix compile for kernel without CONFIG_PCI_IOV defined
etherh: Add MAINTAINERS entry for etherh
bonding: comparing a u8 with -1 is always false
sky2: fix regression on Yukon Optima
netlink: clarify attribute length check documentation
netlink: validate NLA_MSECS length
i825xx:xscale:8390:freescale: Fix Kconfig dependancies
macvlan: receive multicast with local address
tg3: Update version to 3.121
tg3: Eliminate timer race with reset_task
tg3: Schedule at most one tg3_reset_task run
tg3: Obtain PCI function number from device
... -
Signed-off-by: Al Viro
Signed-off-by: Linus Torvalds -
This fixes the following sparse warnings:
drivers/net/ethernet/nvidia/forcedeth.c:2113:7: warning: symbol 'size' shadows an earlier one
drivers/net/ethernet/nvidia/forcedeth.c:2102:6: originally declared here
drivers/net/ethernet/nvidia/forcedeth.c:2155:7: warning: symbol 'size' shadows an earlier one
drivers/net/ethernet/nvidia/forcedeth.c:2102:6: originally declared here
drivers/net/ethernet/nvidia/forcedeth.c:2227:7: warning: symbol 'size' shadows an earlier one
drivers/net/ethernet/nvidia/forcedeth.c:2215:6: originally declared here
drivers/net/ethernet/nvidia/forcedeth.c:2271:7: warning: symbol 'size' shadows an earlier one
drivers/net/ethernet/nvidia/forcedeth.c:2215:6: originally declared here
drivers/net/ethernet/nvidia/forcedeth.c:2986:20: warning: symbol 'addr' shadows an earlier one
drivers/net/ethernet/nvidia/forcedeth.c:2963:6: originally declared hereSigned-off-by: David Decotigny
Signed-off-by: David S. Miller -
Rx byte count was off; instead use the hardware's count. Tx packet
count was counting pre-TSO packets; instead count on-the-wire packets.
Report hardware dropped frame count as rx_fifo_errors.- The count of transmitted packets reported by the forcedeth driver
reports pre-TSO (TCP Segmentation Offload) packet counts and not the
count of the number of packets sent on the wire. This change fixes
the forcedeth driver to report the correct count. Fixed the code by
copying the count stored in the NIC H/W to the value reported by the
driver.- Count rx_drop_frame errors as rx_fifo_errors:
We see a lot of rx_drop_frame errors if we disable the rx bottom-halves
for too long. Normally, rx_fifo_errors would be counted in this case.
The rx_drop_frame error count is private to forcedeth and is not
reported by ifconfig or sysfs. The rx_fifo_errors count is currently
unused in the forcedeth driver. It is reported by ifconfig as overruns.
This change reports rx_drop_frame errors as rx_fifo_errors.Signed-off-by: David Decotigny
Signed-off-by: David S. Miller -
Function ndo_get_stats() updates most of the stats from hardware
registers, making the manual updates un-needed. This change removes
these manual updates. Main exception is rx_missed_errors which needs
manual update.Another exception is rx_packets, still updated manually in this commit
to make sure this patch doesn't change behavior of driver. This will
be addressed by a future patch.Signed-off-by: David Decotigny
Signed-off-by: David S. Miller -
This is to avoid a race, accidentally acknowledging an interrupt that
we didn't notice and won't immediately process. This is based solely
on code inspection; it is not known if there was an actual bug here.Signed-off-by: David Decotigny
Signed-off-by: David S. Miller -
When forcedeth module is unloaded, there exists a path that can lead
to mod_timer() after del_timer_sync(), causing an oops. This patch
short-circuits this unneeded path, which originates in
nv_get_ethtool_stats().Tested:
x86_64 16-way + 3 ethtool -S infinite loops + 100Mbps incoming traffic
+ rmmod/modprobe/ifconfig in a loopInitial-Author: Salman Qazi
Discussion: http://patchwork.ozlabs.org/patch/123548/Signed-off-by: David Decotigny
Signed-off-by: David S. Miller -
Reported-by: Witold Baryluk
Signed-off-by: Stephen Rothwell
Signed-off-by: Paul Gortmaker
Signed-off-by: Linus Torvalds -
since it uses the module facilities.
Reported-by: Witold Baryluk
Signed-off-by: Stephen Rothwell
Signed-off-by: Paul Gortmaker
Signed-off-by: Linus Torvalds -
For the files which are not themselves modular, we can change
them to include only the smaller export.h since all they are
doing is looking for EXPORT_SYMBOL.Reported-by: Stephen Rothwell
Signed-off-by: Paul Gortmaker
Signed-off-by: Linus Torvalds -
These files didn't exist at the time of the module.h split, and
so were not fixed by the commits on that baseline. Since they use
the EXPORT_SYMBOL and/or THIS_MODULE macros, they will need the
new export.h file included that provides them.Signed-off-by: Paul Gortmaker
Signed-off-by: Linus Torvalds -
update for the actual maintainer
Signed-off-by: Or Gerlitz
Signed-off-by: David S. Miller -
The BKL is gone, these annotations are useless.
Signed-off-by: Richard Weinberger
Signed-off-by: David S. Miller -
This patch fixes the bug added in commit v3.1-rc7-1055-gf9b491e
SKB can be NULL at this point, at least for cdc-ncm.Signed-off-by: Konstantin Khlebnikov
Acked-by: Richard Cochran
Signed-off-by: David S. Miller -
Fix compiler errors and warnings with CONFIG_PCI_IOV defined and not
defined.Signed-off-by: Greg Rose
Signed-off-by: David S. Miller -
* 'release' of git://git.kernel.org/pub/scm/linux/kernel/git/lenb/linux:
cpuidle: Single/Global registration of idle states
cpuidle: Split cpuidle_state structure and move per-cpu statistics fields
cpuidle: Remove CPUIDLE_FLAG_IGNORE and dev->prepare()
cpuidle: Move dev->last_residency update to driver enter routine; remove dev->last_state
ACPI: Fix CONFIG_ACPI_DOCK=n compiler warning
ACPI: Export FADT pm_profile integer value to userspace
thermal: Prevent polling from happening during system suspend
ACPI: Drop ACPI_NO_HARDWARE_INIT
ACPI atomicio: Convert width in bits to bytes in __acpi_ioremap_fast()
PNPACPI: Simplify disabled resource registration
ACPI: Fix possible recursive locking in hwregs.c
ACPI: use kstrdup()
mrst pmu: update comment
tools/power turbostat: less verbose debugging -
* 'drm-fixes' of git://people.freedesktop.org/~airlied/linux: (40 commits)
vmwgfx: Snoop DMA transfers with non-covering sizes
vmwgfx: Move the prefered mode first in the list
vmwgfx: Unreference surface on cursor error path
vmwgfx: Free prefered mode on error path
vmwgfx: Use pointer return error codes
vmwgfx: Fix hw cursor position
vmwgfx: Infrastructure for explicit placement
vmwgfx: Make the preferred autofit mode have a 60Hz vrefresh
vmwgfx: Remove screen object active list
vmwgfx: Screen object cleanups
drm/radeon/kms: consolidate GART code, fix segfault after GPU lockup V2
drm/radeon/kms: don't poll forever if MC GDDR link training fails
drm/radeon/kms: fix DP setup on TRAVIS bridges
drm/radeon/kms: set HPD polarity in hpd_init()
drm/radeon/kms: add MSI module parameter
drm/radeon/kms: Add MSI quirk for Dell RS690
drm/radeon/kms: Add MSI quirk for HP RS690
drm/radeon/kms: split MSI check into a separate function
vmwgfx: Reinstate the update_layout ioctl
drm/radeon/kms: always do extended edid probe
... -
* 'urgent-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/wfg/linux:
writeback: fix uninitialized task_ratelimit -
* git://git.samba.org/sfrench/cifs-2.6:
CIFS: Cleanup byte-range locking code style
CIFS: Simplify setlk error handling for mandatory locking -
* git://git.infradead.org/mtd-2.6: (226 commits)
mtd: tests: annotate as DANGEROUS in Kconfig
mtd: tests: don't use mtd0 as a default
mtd: clean up usage of MTD_DOCPROBE_ADDRESS
jffs2: add compr=lzo and compr=zlib options
jffs2: implement mount option parsing and compression overriding
mtd: nand: initialize ops.mode
mtd: provide an alias for the redboot module name
mtd: m25p80: don't probe device which has status of 'disabled'
mtd: nand_h1900 never worked
mtd: Add DiskOnChip G3 support
mtd: m25p80: add EON flash EN25Q32B into spi flash id table
mtd: mark block device queue as non-rotational
mtd: r852: make r852_pm_ops static
mtd: m25p80: add support for at25df321a spi data flash
mtd: mxc_nand: preset_v1_v2: unlock all NAND flash blocks
mtd: nand: switch `check_pattern()' to standard `memcmp()'
mtd: nand: invalidate cache on unaligned reads
mtd: nand: do not scan bad blocks with NAND_BBT_NO_OOB set
mtd: nand: wait to set BBT version
mtd: nand: scrub BBT on ECC errors
...Fix up trivial conflicts:
- arch/arm/mach-at91/board-usb-a9260.c
Merged into board-usb-a926x.c
- drivers/mtd/maps/lantiq-flash.c
add_mtd_partitions -> mtd_device_register vs changed to use
mtd_device_parse_register. -
* 'linux-next' of git://git.infradead.org/ubifs-2.6:
UBIFS: fix the dark space calculation
UBIFS: introduce a helper to dump scanning info
07 Nov, 2011
2 commits
-
Enough to get cursors working under Wayland.
Signed-off-by: Jakob Bornecrantz
Signed-off-by: Thomas Hellstrom
Signed-off-by: Dave Airlie -
Signed-off-by: Jakob Bornecrantz
Signed-off-by: Thomas Hellstrom
Signed-off-by: Dave Airlie
