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Commit 56c176c9cac9 ("UAPI: strip the _UAPI prefix from header guards
during header installation") strips the _UAPI prefix from header guards,
but only if there's a single space between the cpp directive and the
label.
Make it more flexible and able to handle tabs and multiple white space
characters.
Signed-off-by: David Howells <[email protected]>
Signed-off-by: Linus Torvalds <[email protected]>
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Empty files can get deleted by the patch program, so remove empty Kbuild
files and their links from the parent Kbuilds.
Signed-off-by: David Howells <[email protected]>
Signed-off-by: Linus Torvalds <[email protected]>
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git://git.kernel.org/pub/scm/linux/kernel/git/tyhicks/ecryptfs
Pull ecryptfs fixes from Tyler Hicks:
"Two self-explanatory fixes and a third patch which improves
performance: when overwriting a full page in the eCryptfs page cache,
skip reading in and decrypting the corresponding lower page."
* tag 'ecryptfs-3.8-rc2-fixes' of git://git.kernel.org/pub/scm/linux/kernel/git/tyhicks/ecryptfs:
fs/ecryptfs/crypto.c: make ecryptfs_encode_for_filename() static
eCryptfs: fix to use list_for_each_entry_safe() when delete items
eCryptfs: Avoid unnecessary disk read and data decryption during writing
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git://git.kernel.org/pub/scm/linux/kernel/git/sage/ceph-client
Pull Ceph fixes from Sage Weil:
"Two of Alex's patches deal with a race when reseting server
connections for open RBD images, one demotes some non-fatal BUGs to
WARNs, and my patch fixes a protocol feature bit failure path."
* 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/sage/ceph-client:
libceph: fix protocol feature mismatch failure path
libceph: WARN, don't BUG on unexpected connection states
libceph: always reset osds when kicking
libceph: move linger requests sooner in kick_requests()
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Sasha was fuzzing with trinity and reported the following problem:
BUG: sleeping function called from invalid context at kernel/mutex.c:269
in_atomic(): 1, irqs_disabled(): 0, pid: 6361, name: trinity-main
2 locks held by trinity-main/6361:
#0: (&mm->mmap_sem){++++++}, at: [<ffffffff810aa314>] __do_page_fault+0x1e4/0x4f0
#1: (&(&mm->page_table_lock)->rlock){+.+...}, at: [<ffffffff8122f017>] handle_pte_fault+0x3f7/0x6a0
Pid: 6361, comm: trinity-main Tainted: G W
3.7.0-rc2-next-20121024-sasha-00001-gd95ef01-dirty #74
Call Trace:
__might_sleep+0x1c3/0x1e0
mutex_lock_nested+0x29/0x50
mpol_shared_policy_lookup+0x2e/0x90
shmem_get_policy+0x2e/0x30
get_vma_policy+0x5a/0xa0
mpol_misplaced+0x41/0x1d0
handle_pte_fault+0x465/0x6a0
This was triggered by a different version of automatic NUMA balancing
but in theory the current version is vunerable to the same problem.
do_numa_page
-> numa_migrate_prep
-> mpol_misplaced
-> get_vma_policy
-> shmem_get_policy
It's very unlikely this will happen as shared pages are not marked
pte_numa -- see the page_mapcount() check in change_pte_range() -- but
it is possible.
To address this, this patch restores sp->lock as originally implemented
by Kosaki Motohiro. In the path where get_vma_policy() is called, it
should not be calling sp_alloc() so it is not necessary to treat the PTL
specially.
Signed-off-by: KOSAKI Motohiro <[email protected]>
Tested-by: KOSAKI Motohiro <[email protected]>
Signed-off-by: Mel Gorman <[email protected]>
Signed-off-by: Linus Torvalds <[email protected]>
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Fix build failure if building a monolithic kernel due to
arch/mips/kernel/Kconfig selecting MODULES_USE_ELF_REL[A] without checking
to see if MODULES is set or not. This leads to 'struct module' not
existing, which triggers a compile failure in arch/mips/kernel/module-rela.c
when the compiler attempts to dereference me->name:
CC arch/mips/kernel/module-rela.o
arch/mips/kernel/module-rela.c: In function ‘apply_r_mips_26_rela’:
arch/mips/kernel/module-rela.c:38:74: error: dereferencing pointer to incomplete type
arch/mips/kernel/module-rela.c:46:12: error: dereferencing pointer to incomplete type
arch/mips/kernel/module-rela.c: In function ‘apply_relocate_add’:
arch/mips/kernel/module-rela.c:133:13: error: dereferencing pointer to incomplete type
make[2]: *** [arch/mips/kernel/module-rela.o] Error 1
Signed-off-by: Joshua Kinard <[email protected]>
Cc: [email protected]
Patchwork: https://patchwork.linux-mips.org/patch/4749/
Signed-off-by: Ralf Baechle <[email protected]>
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git://git.kernel.org/pub/scm/linux/kernel/git/tytso/ext4
Pull ext4 bug fixes from Ted Ts'o:
"Various bug fixes for ext4. Perhaps the most serious bug fixed is one
which could cause file system corruptions when performing file punch
operations."
* tag 'ext4_for_linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tytso/ext4:
ext4: avoid hang when mounting non-journal filesystems with orphan list
ext4: lock i_mutex when truncating orphan inodes
ext4: do not try to write superblock on ro remount w/o journal
ext4: include journal blocks in df overhead calcs
ext4: remove unaligned AIO warning printk
ext4: fix an incorrect comment about i_mutex
ext4: fix deadlock in journal_unmap_buffer()
ext4: split off ext4_journalled_invalidatepage()
jbd2: fix assertion failure in jbd2_journal_flush()
ext4: check dioread_nolock on remount
ext4: fix extent tree corruption caused by hole punch
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Remove the unused argument (formerly no_context) from mpol_parse_str()
and from mpol_to_str().
Signed-off-by: Hugh Dickins <[email protected]>
Signed-off-by: Linus Torvalds <[email protected]>
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Recently I suggested using "mount -o remount,mpol=local /tmp" in NUMA
mempolicy testing. Very nasty. Reading /proc/mounts, /proc/pid/mounts
or /proc/pid/mountinfo may then corrupt one bit of kernel memory, often
in a page table (causing "Bad swap" or "Bad page map" warning or "Bad
pagetable" oops), sometimes in a vm_area_struct or rbnode or somewhere
worse. "mpol=prefer" and "mpol=prefer:Node" are equally toxic.
Recent NUMA enhancements are not to blame: this dates back to 2.6.35,
when commit e17f74af351c "mempolicy: don't call mpol_set_nodemask() when
no_context" skipped mpol_parse_str()'s call to mpol_set_nodemask(),
which used to initialize v.preferred_node, or set MPOL_F_LOCAL in flags.
With slab poisoning, you can then rely on mpol_to_str() to set the bit
for node 0x6b6b, probably in the next page above the caller's stack.
mpol_parse_str() is only called from shmem_parse_options(): no_context
is always true, so call it unused for now, and remove !no_context code.
Set v.nodes or v.preferred_node or MPOL_F_LOCAL as mpol_to_str() might
expect. Then mpol_to_str() can ignore its no_context argument also,
the mpol being appropriately initialized whether contextualized or not.
Rename its no_context unused too, and let subsequent patch remove them
(that's not needed for stable backporting, which would involve rejects).
I don't understand why MPOL_LOCAL is described as a pseudo-policy:
it's a reasonable policy which suffers from a confusing implementation
in terms of MPOL_PREFERRED with MPOL_F_LOCAL. I believe this would be
much more robust if MPOL_LOCAL were recognized in switch statements
throughout, MPOL_F_LOCAL deleted, and MPOL_PREFERRED use the (possibly
empty) nodes mask like everyone else, instead of its preferred_node
variant (I presume an optimization from the days before MPOL_LOCAL).
But that would take me too long to get right and fully tested.
Signed-off-by: Hugh Dickins <[email protected]>
Cc: [email protected]
Signed-off-by: Linus Torvalds <[email protected]>
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EPOLL_CTL_MOD sets the interest mask before calling f_op->poll() to
ensure events are not missed. Since the modifications to the interest
mask are not protected by the same lock as ep_poll_callback, we need to
ensure the change is visible to other CPUs calling ep_poll_callback.
We also need to ensure f_op->poll() has an up-to-date view of past
events which occured before we modified the interest mask. So this
barrier also pairs with the barrier in wq_has_sleeper().
This should guarantee either ep_poll_callback or f_op->poll() (or both)
will notice the readiness of a recently-ready/modified item.
This issue was encountered by Andreas Voellmy and Junchang(Jason) Wang in:
http://thread.gmane.org/gmane.linux.kernel/1408782/
Signed-off-by: Eric Wong <[email protected]>
Cc: Hans Verkuil <[email protected]>
Cc: Jiri Olsa <[email protected]>
Cc: Jonathan Corbet <[email protected]>
Cc: Al Viro <[email protected]>
Cc: Davide Libenzi <[email protected]>
Cc: Hans de Goede <[email protected]>
Cc: Mauro Carvalho Chehab <[email protected]>
Cc: David Miller <[email protected]>
Cc: Eric Dumazet <[email protected]>
Cc: Andrew Morton <[email protected]>
Cc: Andreas Voellmy <[email protected]>
Tested-by: "Junchang(Jason) Wang" <[email protected]>
Cc: [email protected]
Cc: [email protected]
Signed-off-by: Linus Torvalds <[email protected]>
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Signed-off-by: Catalin Marinas <[email protected]>
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Commit 9b064fc3f95a8e44e929fdf4d6037334ea03d15b (new helper:
compat_user_stack_pointer()) introduces a call to current_pt_regs()
which is defined in linux/ptrace.h, not currently included asm/compat.h.
Signed-off-by: Catalin Marinas <[email protected]>
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Add DT support for twl4030_wdt. This is needed to get twl4030_wdt to
probe when booting with DT.
Signed-off-by: Aaro Koskinen <[email protected]>
Signed-off-by: Wim Van Sebroeck <[email protected]>
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We forgot to delete this in the commit 4f4753d9 (watchdog: omap_wdt:
convert to devm_ functions), and as a result the following compilation
warning was introduced:
drivers/watchdog/omap_wdt.c: In function 'omap_wdt_remove':
drivers/watchdog/omap_wdt.c:299:19: warning: unused variable 'res' [-Wunused-variable]
Signed-off-by: Aaro Koskinen <[email protected]>
Reviewed-by: Paul Walmsley <[email protected]>
Signed-off-by: Wim Van Sebroeck <[email protected]>
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error path
Otherwise, WDIOC_GETTIMEOUT returns wrong value if set_timeout fails.
This patch also removes unnecessary ret variable in da9055_wdt_ping function.
Signed-off-by: Axel Lin <[email protected]>
Signed-off-by: Wim Van Sebroeck <[email protected]>
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It is not required to free devm_ allocated data. Since kref_put
needs a valid release function, da9055_wdt_release_resources()
is not deleted.
Signed-off-by: Axel Lin <[email protected]>
Signed-off-by: Wim Van Sebroeck <[email protected]>
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In function rg_mblk_search, it's searching for multiple blocks in
a given state (e.g. "free"). If there's an active block reservation
its goal is the next free block of that. If the resource group
contains the dinode's goal block, that's used for the search. But
if neither is the case, it uses the rgrp's last allocated block.
That way, consecutive allocations appear after one another on media.
The problem comes in when you hit the end of the rgrp; it would never
start over and search from the beginning. This became a problem,
since if you deleted all the files and data from the rgrp, it would
never start over and find free blocks. So it had to keep searching
further out on the media to allocate blocks. This patch resets the
rd_last_alloc after it does an unsuccessful search at the end of
the rgrp.
Signed-off-by: Bob Peterson <[email protected]>
Signed-off-by: Steven Whitehouse <[email protected]>
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This patch adds a return code check after calling function
gfs2_rbm_from_block while determining the free extent size.
That way, when the end of an rgrp is reached, it won't try
to process unaligned blocks after the end.
Signed-off-by: Bob Peterson <[email protected]>
Signed-off-by: Steven Whitehouse <[email protected]>
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QE aio tests uncovered a race condition in gfs2_rs_alloc where it's possible
to come out of the function with a valid ip->i_res allocation but it gets
freed before use resulting in a NULL ptr dereference.
This patch envelopes the initial short-circuit check for non-NULL ip->i_res
into the mutex lock. With this patch, I was able to successfully run the
reproducer test multiple times.
Resolves: rhbz#878476
Signed-off-by: Abhi Das <[email protected]>
Signed-off-by: Steven Whitehouse <[email protected]>
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When generating the DLM lock name, a value of 0 would skip
the loop and leave the string unchanged. This left locks with
a value of 0 unlabeled. Initializing the string to '0' fixes this.
Signed-off-by: Nathan Straz <[email protected]>
Signed-off-by: Steven Whitehouse <[email protected]>
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Pull DRM update from Dave Airlie:
"This is a bit larger due to me not bothering to do anything since
before Xmas, and other people working too hard after I had clearly
given up.
It's got the 3 main x86 driver fixes pulls, and a bunch of tegra
fixes, doesn't fix the Ironlake bug yet, but that does seem to be
getting closer.
- radeon: gpu reset fixes and userspace packet support
- i915: watermark fixes, workarounds, i830/845 fix,
- nouveau: nvd9/kepler microcode fixes, accel is now enabled and
working, gk106 support
- tegra: misc fixes."
* 'drm-next' of git://people.freedesktop.org/~airlied/linux: (34 commits)
Revert "drm: tegra: protect DC register access with mutex"
drm: tegra: program only one window during modeset
drm: tegra: clean out old gem prototypes
drm: tegra: remove redundant tegra2_tmds_config entry
drm: tegra: protect DC register access with mutex
drm: tegra: don't leave clients host1x member uninitialized
drm: tegra: fix front_porch <-> back_porch mixup
drm/nve0/graph: fix fuc, and enable acceleration on all known chipsets
drm/nvc0/graph: fix fuc, and enable acceleration on GF119
drm/nouveau/bios: cache ramcfg strap on later chipsets
drm/nouveau/mxm: silence output if no bios data
drm/nouveau/bios: parse/display extra version component
drm/nouveau/bios: implement opcode 0xa9
drm/nouveau/bios: update gpio parsing apis to match current design
drm/nouveau: initial support for GK106
drm/radeon: add WAIT_UNTIL to evergreen VM safe reg list
drm/i915: disable shrinker lock stealing for create_mmap_offset
drm/i915: optionally disable shrinker lock stealing
drm/i915: fix flags in dma buf exporting
drm/radeon: add support for MEM_WRITE packet
...
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git://git.kernel.org/pub/scm/linux/kernel/git/arm/arm-soc
Pull late ARM cleanups for omap from Olof Johansson:
"From Tony Lindgren:
Here are few more patches to finish the omap changes for multiplatform
conversion that are not strictly fixes, but were too complex to do
with the dependencies during the merge window. Those are to move of
serial-omap.h to platform_data, and the removal of remaining
cpu_is_omap macro usage outside mach-omap2.
Then there are several trivial fixes for typos and few minimal
omap2plus_defconfig updates."
* tag 'omap-late-cleanups' of git://git.kernel.org/pub/scm/linux/kernel/git/arm/arm-soc:
arch/arm/mach-omap2/dpll3xxx.c: drop if around WARN_ON
OMAP2: Fix a typo - replace regist with register.
ARM/omap: use module_platform_driver macro
ARM: OMAP2+: PMU: Remove unused header
ARM: OMAP4: remove duplicated include from omap_hwmod_44xx_data.c
ARM: OMAP2+: omap2plus_defconfig: enable twl4030 SoC audio
ARM: OMAP2+: omap2plus_defconfig: Add tps65217 support
ARM: OMAP2+: enable devtmpfs and devtmpfs automount
ARM: OMAP2+: omap_twl: Change TWL4030_MODULE_PM_RECEIVER to TWL_MODULE_PM_RECEIVER
ARM: OMAP2+: Drop plat/cpu.h for omap2plus
ARM: OMAP: Split fb.c to remove last remaining cpu_is_omap usage
MAINTAINERS: Add an entry for omap related .dts files
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Pull ARM SoC fixes from Olof Johansson:
"It's been quiet over the holidays, but we have had a couple of trivial
fixes coming in for the newly introduced sunxi platform; one to add it
to the multiplatform defconfig for build coverage, and one fixup for
device tree strings."
* tag 'fixes' of git://git.kernel.org/pub/scm/linux/kernel/git/arm/arm-soc:
sunxi: Change the machine compatible string.
ARM: multi_v7_defconfig: Add ARCH_SUNXI
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This reverts commit 83c0bcb694be31dcd6c04bdd935b96a95a0af548.
Lucas pointed out this was a mistake, and I missed the discussion,
so just revert it out to save a rebase.
Signed-off-by: Dave Airlie <[email protected]>
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The intention is to program exactly WIN_A, not WIN_A and possibly
others.
Signed-off-by: Lucas Stach <[email protected]>
Signed-off-by: Dave Airlie <[email protected]>
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There is no gem.c anymore, those functions are implemented by the
drm_cma_helpers now.
Signed-off-by: Lucas Stach <[email protected]>
Signed-off-by: Dave Airlie <[email protected]>
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The 720p and 1080p entries are completely redundant, as we are matching
the table entries against <=pclk.
Also generalize the comment, as we are using those table entries even
when driving other modes than the standard TV ones.
Signed-off-by: Lucas Stach <[email protected]>
Signed-off-by: Dave Airlie <[email protected]>
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Window properties are programmed through a shared aperture and have to
happen atomically. Also we do the read-update-write dance on some of the
shared regs.
To make sure that different functions don't stumble over each other
protect the register access with a mutex.
Signed-off-by: Lucas Stach <[email protected]>
Signed-off-by: Dave Airlie <[email protected]>
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No real problem for now, as nothing is using this, but leaving it
unitialized is asking for trouble later on.
Signed-off-by: Lucas Stach <[email protected]>
Signed-off-by: Dave Airlie <[email protected]>
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Fixes wrong picture offset observed when using HDMI output with a
Technisat HD TV.
Signed-off-by: Lucas Stach <[email protected]>
Acked-by: Mark Zhang <[email protected]>
Tested-by: Mark Zhang <[email protected]>
Signed-off-by: Dave Airlie <[email protected]>
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git://people.freedesktop.org/~danvet/drm-intel into drm-next
Some fixes for 3.8:
- Watermark fixups from Chris Wilson (4 pieces).
- 2 snb workarounds, seem to be recently added to our internal DB.
- workaround for the infamous i830/i845 hang, seems now finally solid!
Based on Chris' fix for SNA, now also for UXA/mesa&old SNA.
- Some more fixlets for shrinker-pulls-the-rug issues (Chris&me).
- Fix dma-buf flags when exporting (you).
- Disable the VGA plane if it's enabled on lid open - similar fix in
spirit to the one I've sent you last weeek, BIOS' really like to mess
with the display when closing the lid (awesome debug work from Krzysztof
Mazur).
* 'drm-intel-fixes' of git://people.freedesktop.org/~danvet/drm-intel:
drm/i915: disable shrinker lock stealing for create_mmap_offset
drm/i915: optionally disable shrinker lock stealing
drm/i915: fix flags in dma buf exporting
i915: ensure that VGA plane is disabled
drm/i915: Preallocate the drm_mm_node prior to manipulating the GTT drm_mm manager
drm: Export routines for inserting preallocated nodes into the mm manager
drm/i915: don't disable disconnected outputs
drm/i915: Implement workaround for broken CS tlb on i830/845
drm/i915: Implement WaSetupGtModeTdRowDispatch
drm/i915: Implement WaDisableHiZPlanesWhenMSAAEnabled
drm/i915: Prefer CRTC 'active' rather than 'enabled' during WM computations
drm/i915: Clear self-refresh watermarks when disabled
drm/i915: Double the cursor self-refresh latency on Valleyview
drm/i915: Fixup cursor latency used for IVB lp3 watermarks
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into drm-next
Misc fixes for reset and new packets for userspace usage.
* 'drm-fixes-3.8' of git://people.freedesktop.org/~agd5f/linux:
drm/radeon: add WAIT_UNTIL to evergreen VM safe reg list
drm/radeon: add support for MEM_WRITE packet
drm/radeon: restore modeset late in GPU reset path
drm/radeon: avoid deadlock in pm path when waiting for fence
drm/radeon: don't leave fence blocked process on failed GPU reset
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git://anongit.freedesktop.org/git/nouveau/linux-2.6 into drm-next
Fixes the accel support for nvd9 + kepler chipsets, also fixes GK106 support.
* 'drm-nouveau-fixes-3.8' of git://anongit.freedesktop.org/git/nouveau/linux-2.6:
drm/nve0/graph: fix fuc, and enable acceleration on all known chipsets
drm/nvc0/graph: fix fuc, and enable acceleration on GF119
drm/nouveau/bios: cache ramcfg strap on later chipsets
drm/nouveau/mxm: silence output if no bios data
drm/nouveau/bios: parse/display extra version component
drm/nouveau/bios: implement opcode 0xa9
drm/nouveau/bios: update gpio parsing apis to match current design
drm/nouveau: initial support for GK106
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An unintended consequence of commit 4ae0a48b5efc ("mm: modify
pgdat_balanced() so that it also handles order-0") is that
wait_iff_congested() can now be called with NULL 'struct zone *'
producing kernel oops like this:
BUG: unable to handle kernel NULL pointer dereference
IP: [<ffffffff811542d9>] wait_iff_congested+0x59/0x140
This trivial patch fixes it.
Reported-by: Zhouping Liu <[email protected]>
Reported-and-tested-by: Sedat Dilek <[email protected]>
Cc: Andrew Morton <[email protected]>
Cc: Mel Gorman <[email protected]>
Cc: Hugh Dickins <[email protected]>
Signed-off-by: Zlatko Calusic <[email protected]>
Signed-off-by: Linus Torvalds <[email protected]>
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Signed-off-by: Ralf Baechle <[email protected]>
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ERROR: "min_low_pfn" [drivers/block/aoe/aoe.ko] undefined!
Fixed by moving the implementation of virt_addr_valid() into the kernel
proper and exporting it which removes the pains of an inline or macro
implementation.
Signed-off-by: Ralf Baechle <[email protected]>
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Signed-off-by: Ralf Baechle <[email protected]>
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Signed-off-by: Ralf Baechle <[email protected]>
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Signed-off-by: Ralf Baechle <[email protected]>
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So far we're jumping through hoops to keep the file usable from assembler
source but it's getting just too painful. Turns out that many uses of
<asm/page.h> are unnecessary anyway, so just remove those.
Signed-off-by: Ralf Baechle <[email protected]>
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From Maxime Ripard:
Fixes for the sunxi core to be merged in 3.8-rc2
* tag 'sunxi-fixes-for-3.8-rc2' of git://github.com/mripard/linux:
sunxi: Change the machine compatible string.
ARM: multi_v7_defconfig: Add ARCH_SUNXI
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This patch is intended to unify string length declarations and usage.
There are number of calls to strlen which return size_t object.
The size of this object depends on compiler if it will be bigger,
equal or even smaller than an unsigned int
Signed-off-by: Leon Romanovsky <[email protected]>
Signed-off-by: Jaegeuk Kim <[email protected]>
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This patch cleans up a couple of unnecessary codes related to unused variables
and return values.
Signed-off-by: Jaegeuk Kim <[email protected]>
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This patch also resolves the following warning reported by kbuild test robot.
fs/f2fs/gc.c: In function 'start_bidx_of_node':
fs/f2fs/gc.c:453:21: warning: 'bidx' may be used uninitialized in this function
Signed-off-by: Jaegeuk Kim <[email protected]>
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We can directly return '0' from the function, instead of introducing a
'ret' variable.
Signed-off-by: Namjae Jeon <[email protected]>
Signed-off-by: Amit Sahrawat <[email protected]>
Signed-off-by: Jaegeuk Kim <[email protected]>
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In function find_fsync_dnodes() - the fsync inodes gets added to the list, but
in one path suppose f2fs_iget results in error, in such case - error gets added
to the fsync inode list.
In next call to recover_data()->get_fsync_inode()
entry = list_entry(this, struct fsync_inode_entry, list);
if (entry->inode->i_ino == ino)
This can result in "invalid access to memory" when it encounters 'error' as
entry in the fsync inode list.
So, add the fsync inode entry to the list only in case of no errors.
And, free the object at that point itself in case of issue.
Signed-off-by: Namjae Jeon <[email protected]>
Signed-off-by: Amit Sahrawat <[email protected]>
Signed-off-by: Jaegeuk Kim <[email protected]>
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Since, the memory for the object of dirty_seglist_info is allocated
using kzalloc - which returns zeroed out memory. So, there is no need
to initialize the nr_dirty values with zeroes.
Signed-off-by: Namjae Jeon <[email protected]>
Signed-off-by: Amit Sahrawat <[email protected]>
Signed-off-by: Jaegeuk Kim <[email protected]>
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We should not set con->state to CLOSED here; that happens in
ceph_fault() in the caller, where it first asserts that the state
is not yet CLOSED. Avoids a BUG when the features don't match.
Since the fail_protocol() has become a trivial wrapper, replace
calls to it with direct calls to reset_connection().
Signed-off-by: Sage Weil <[email protected]>
Reviewed-by: Alex Elder <[email protected]>
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A number of assertions in the ceph messenger are implemented with
BUG_ON(), killing the system if connection's state doesn't match
what's expected. At this point our state model is (evidently) not
well understood enough for these assertions to trigger a BUG().
Convert all BUG_ON(con->state...) calls to be WARN_ON(con->state...)
so we learn about these issues without killing the machine.
We now recognize that a connection fault can occur due to a socket
closure at any time, regardless of the state of the connection. So
there is really nothing we can assert about the state of the
connection at that point so eliminate that assertion.
Reported-by: Ugis <[email protected]>
Tested-by: Ugis <[email protected]>
Signed-off-by: Alex Elder <[email protected]>
Reviewed-by: Sage Weil <[email protected]>
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When ceph_osdc_handle_map() is called to process a new osd map,
kick_requests() is called to ensure all affected requests are
updated if necessary to reflect changes in the osd map. This
happens in two cases: whenever an incremental map update is
processed; and when a full map update (or the last one if there is
more than one) gets processed.
In the former case, the kick_requests() call is followed immediately
by a call to reset_changed_osds() to ensure any connections to osds
affected by the map change are reset. But for full map updates
this isn't done.
Both cases should be doing this osd reset.
Rather than duplicating the reset_changed_osds() call, move it into
the end of kick_requests().
Signed-off-by: Alex Elder <[email protected]>
Reviewed-by: Sage Weil <[email protected]>
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