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This format seems to have been taken from device mapper header, but
autofs has no such file:function in both kernel and userspace.
Link: http://lkml.kernel.org/r/[email protected]
Signed-off-by: Tomohiro Kusumi <[email protected]>
Signed-off-by: Ian Kent <[email protected]>
Signed-off-by: Andrew Morton <[email protected]>
Signed-off-by: Linus Torvalds <[email protected]>
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Often all is needed is these small helpers, instead of compiler.h or a
full kprobes.h. This is important for asm helpers, in fact even some
asm/kprobes.h make use of these helpers... instead just keep a generic
asm file with helpers useful for asm code with the least amount of
clutter as possible.
Likewise we need now to also address what to do about this file for both
when architectures have CONFIG_HAVE_KPROBES, and when they do not. Then
for when architectures have CONFIG_HAVE_KPROBES but have disabled
CONFIG_KPROBES.
Right now most asm/kprobes.h do not have guards against CONFIG_KPROBES,
this means most architecture code cannot include asm/kprobes.h safely.
Correct this and add guards for architectures missing them.
Additionally provide architectures that not have kprobes support with
the default asm-generic solution. This lets us force asm/kprobes.h on
the header include/linux/kprobes.h always, but most importantly we can
now safely include just asm/kprobes.h on architecture code without
bringing the full kitchen sink of header files.
Two architectures already provided a guard against CONFIG_KPROBES on its
kprobes.h: sh, arch. The rest of the architectures needed gaurds added.
We avoid including any not-needed headers on asm/kprobes.h unless
kprobes have been enabled.
In a subsequent atomic change we can try now to remove compiler.h from
include/linux/kprobes.h.
During this sweep I've also identified a few architectures defining a
common macro needed for both kprobes and ftrace, that of the definition
of the breakput instruction up. Some refer to this as
BREAKPOINT_INSTRUCTION. This must be kept outside of the #ifdef
CONFIG_KPROBES guard.
[[email protected]: fix arm64 build]
Link: http://lkml.kernel.org/r/CAB=NE6X1WMByuARS4mZ1g9+W=LuVBnMDnh_5zyN0CLADaVh=Jw@mail.gmail.com
[[email protected]: fixup for kprobes declarations moving]
Link: http://lkml.kernel.org/r/[email protected]
Link: http://lkml.kernel.org/r/[email protected]
Signed-off-by: Luis R. Rodriguez <[email protected]>
Signed-off-by: Stephen Rothwell <[email protected]>
Acked-by: Masami Hiramatsu <[email protected]>
Cc: Arnd Bergmann <[email protected]>
Cc: Masami Hiramatsu <[email protected]>
Cc: Ananth N Mavinakayanahalli <[email protected]>
Cc: Anil S Keshavamurthy <[email protected]>
Cc: David S. Miller <[email protected]>
Cc: Ingo Molnar <[email protected]>
Cc: Thomas Gleixner <[email protected]>
Cc: H. Peter Anvin <[email protected]>
Cc: Andy Lutomirski <[email protected]>
Cc: Steven Rostedt <[email protected]>
Signed-off-by: Andrew Morton <[email protected]>
Signed-off-by: Linus Torvalds <[email protected]>
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Change the zpool/compressor param callback function to release the
zswap_pools_lock spinlock before calling param_set_charp, since that
function may sleep when it calls kmalloc with GFP_KERNEL.
While this problem has existed for a while, I wasn't able to trigger it
using a tight loop changing either/both the zpool and compressor params; I
think it's very unlikely to be an issue on the stable kernels, especially
since most zswap users will change the compressor and/or zpool from sysfs
only one time each boot - or zero times, if they add the params to the
kernel boot.
Fixes: c99b42c3529e ("zswap: use charp for zswap param strings")
Link: http://lkml.kernel.org/r/[email protected]
Signed-off-by: Dan Streetman <[email protected]>
Reported-by: Sergey Senozhatsky <[email protected]>
Cc: Michal Hocko <[email protected]>
Cc: Minchan Kim <[email protected]>
Signed-off-by: Andrew Morton <[email protected]>
Signed-off-by: Linus Torvalds <[email protected]>
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If either the compressor and/or zpool param are invalid at boot, and
their default value is also invalid, set the param to the empty string
to indicate there is no compressor and/or zpool configured. This allows
users to check the sysfs interface to see which param needs changing.
Link: http://lkml.kernel.org/r/[email protected]
Signed-off-by: Dan Streetman <[email protected]>
Cc: Seth Jennings <[email protected]>
Cc: Michal Hocko <[email protected]>
Cc: Sergey Senozhatsky <[email protected]>
Cc: Minchan Kim <[email protected]>
Signed-off-by: Andrew Morton <[email protected]>
Signed-off-by: Linus Torvalds <[email protected]>
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Allow zswap to initialize at boot even if it can't create its pool due
to a failure to create a zpool and/or compressor. Allow those to be
created later, from the sysfs module param interface.
Link: http://lkml.kernel.org/r/[email protected]
Signed-off-by: Dan Streetman <[email protected]>
Cc: Seth Jennings <[email protected]>
Cc: Michal Hocko <[email protected]>
Cc: Sergey Senozhatsky <[email protected]>
Cc: Minchan Kim <[email protected]>
Signed-off-by: Andrew Morton <[email protected]>
Signed-off-by: Linus Torvalds <[email protected]>
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The two alternative implementations of dax_iomap_fault have different
prototypes, and one of them is obviously wrong as seen from this build
warning:
fs/dax.c: In function 'dax_iomap_fault':
fs/dax.c:1462:35: error: passing argument 2 of 'dax_iomap_pmd_fault' discards 'const' qualifier from pointer target type [-Werror=discarded-qualifiers]
This marks the argument 'const' as in all the related functions.
Fixes: a2d581675d48 ("mm,fs,dax: change ->pmd_fault to ->huge_fault")
Link: http://lkml.kernel.org/r/[email protected]
Signed-off-by: Arnd Bergmann <[email protected]>
Signed-off-by: Andrew Morton <[email protected]>
Signed-off-by: Linus Torvalds <[email protected]>
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git://anongit.freedesktop.org/git/drm-misc into drm-next
Misc fixes for the 4.11 merge window.
- vmwgfx drm_control node compat patch
- rockchip&zte fix
- compat32 support for dma-buf ioctl (cc: stable ofc, since this is a
massive fumble. oops)
* tag 'drm-misc-next-fixes-2017-02-27' of git://anongit.freedesktop.org/git/drm-misc:
dma-buf: add support for compat ioctl
drm/vmwgfx: Work around drm removal of control nodes
drm/rockchip: cdn-dp: Fix error handling
drm/rockchip: add extcon dependency for DP
drm: zte: fix static checker warning on variable 'fmt'
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The object palm_bk3710_port_info of type ide_port_info is never
referenced anywhere after initialization by palm_bk3710_probe. It is
also passed as a parameter to ide_host_add which is called from the init
function but this call doesn't store the object reference anywhere, and
it only dereferences the values of the fields. Therefore add __initdata
to its declaration.
Signed-off-by: Bhumika Goyal <[email protected]>
Signed-off-by: David S. Miller <[email protected]>
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The current display code assumes that v4 minor version 0 is tracked by
the call to nfsd_vers(). Now it is tracked by nfsd_minorversion(), and
so we need to adjust the display code.
Signed-off-by: Trond Myklebust <[email protected]>
Signed-off-by: J. Bruce Fields <[email protected]>
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When the user turns off all minor versions of NFSv4, that should be
equivalent to turning off NFSv4 support, so a mount attempt using NFSv4
should get RPC_PROG_MISMATCH, not NFSERR_MINOR_VERS_MISMATCH.
Allow the user to use either '4.0' or '4' to enable or disable minor
version 0. Other minor versions are still enabled or disabled using the
'4.x' format.
Signed-off-by: Trond Myklebust <[email protected]>
Signed-off-by: J. Bruce Fields <[email protected]>
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If segs_per_sec is over 1 like under SMR, previously f2fs issues discard
commands redundantly on the same section, since we didn't move end position
for the previous discard command.
E.g.,
start end
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prefree_bitmap = [01111100111100]
And, after issue discard for this section,
end start
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prefree_bitmap = [01111100111100]
Select this section again by searching from (end + 1),
start end
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prefree_bitmap = [01111100111100]
Fixes: 36abef4e796d38 ("f2fs: introduce mode=lfs mount option")
Cc: <[email protected]>
Cc: Damien Le Moal <[email protected]>
Signed-off-by: Jaegeuk Kim <[email protected]>
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git://git.kernel.org/pub/scm/linux/kernel/git/rostedt/linux-trace
Pull another tracing update from Steven Rostedt:
"Commit 79c6f448c8b79c ("tracing: Fix hwlat kthread migration") fixed a
bug that was caused by a race condition in initializing the hwlat
thread. When fixing this code, I realized that it should have been
done differently. Instead of doing the rewrite and sending that to
stable, I just sent the above commit to fix the bug that should be
back ported.
This commit is on top of the quick fix commit to rewrite the code the
way it should have been written in the first place"
* tag 'trace-v4.11-2' of git://git.kernel.org/pub/scm/linux/kernel/git/rostedt/linux-trace:
tracing: Clean up the hwlat binding code
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git://git.kernel.org/pub/scm/linux/kernel/git/rostedt/linux-trace
Pull tracing updates from Steven Rostedt:
"This release has no new tracing features, just clean ups, minor fixes
and small optimizations"
* tag 'trace-v4.11' of git://git.kernel.org/pub/scm/linux/kernel/git/rostedt/linux-trace: (25 commits)
tracing: Remove outdated ring buffer comment
tracing/probes: Fix a warning message to show correct maximum length
tracing: Fix return value check in trace_benchmark_reg()
tracing: Use modern function declaration
jump_label: Reduce the size of struct static_key
tracing/probe: Show subsystem name in messages
tracing/hwlat: Update old comment about migration
timers: Make flags output in the timer_start tracepoint useful
tracing: Have traceprobe_probes_write() not access userspace unnecessarily
tracing: Have COMM event filter key be treated as a string
ftrace: Have set_graph_function handle multiple functions in one write
ftrace: Do not hold references of ftrace_graph_{notrace_}hash out of graph_lock
tracing: Reset parser->buffer to allow multiple "puts"
ftrace: Have set_graph_functions handle write with RDWR
ftrace: Reset fgd->hash in ftrace_graph_write()
ftrace: Replace (void *)1 with a meaningful macro name FTRACE_GRAPH_EMPTY
ftrace: Create a slight optimization on searching the ftrace_hash
tracing: Add ftrace_hash_key() helper function
ftrace: Convert graph filter to use hash tables
ftrace: Expose ftrace_hash_empty and ftrace_lookup_ip
...
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fix such pclint warning:
...
Loss of precision (arg. no. 2) (unsigned long long to unsigned int))
Signed-off-by: Hou Pengyang <[email protected]>
Signed-off-by: Jaegeuk Kim <[email protected]>
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Signed-off-by: Hou Pengyang <[email protected]>
Signed-off-by: Jaegeuk Kim <[email protected]>
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The introduction of the multi-device feature partially broke the support
for zoned block devices. In the function f2fs_scan_devices, sbi->devs
allocation and initialization is skipped in the case of a single device
mount. This result in no device information structure being allocated
for the device. This is fine if the device is a regular device, but in
the case of a zoned block device, the device zone type array is not
initialized, which causes the function __f2fs_issue_discard_zone to fail
as get_blkz_type is unable to determine the zone type of a section.
Fix this by always allocating and initializing the sbi->devs device
information array even in the case of a single device if that device is
zoned. For this particular case, make sure to obtain a reference on the
single device so that the call to blkdev_put() in destroy_device_list
operates as expected.
Fixes: 3c62be17d4f562f4 ("f2fs: support multiple devices")
Cc: <[email protected]> # v4.10
Signed-off-by: Masato Suzuki <[email protected]>
Acked-by: Damien Le Moal <[email protected]>
Signed-off-by: Jaegeuk Kim <[email protected]>
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This patch remove redundant set_page_dirty in truncate_blocks
Signed-off-by: Yunlei He <[email protected]>
Signed-off-by: Jaegeuk Kim <[email protected]>
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It needs to double cache size of write_io_dummy mempool, otherwise we may
run out of cache in scenraio of Data/Node IOs were issued concurrently.
Signed-off-by: Chao Yu <[email protected]>
Signed-off-by: Jaegeuk Kim <[email protected]>
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Signed-off-by: Chao Yu <[email protected]>
Signed-off-by: Jaegeuk Kim <[email protected]>
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We should only account F2FS_{CP_}WB_DATA IOs for write path, fix it.
Signed-off-by: Chao Yu <[email protected]>
Signed-off-by: Jaegeuk Kim <[email protected]>
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F2FS has define MAX_FREE_NIDS for maximum of cached free nids target.
Signed-off-by: Kinglong Mee <[email protected]>
Reviewed-by: Chao Yu <[email protected]>
Signed-off-by: Jaegeuk Kim <[email protected]>
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In scenario of intensively node allocation, free nids will be ran out
soon, then it needs to stop to load free nids by traversing NAT blocks,
in worse case, if NAT blocks does not be cached in memory, it generates
IOs which slows down our foreground operations.
In order to speed up node allocation, in this patch we introduce a new
free_nid_bitmap array, so there is an bitmap table for each NAT block,
Once the NAT block is loaded, related bitmap cache will be switched on,
and bitmap will be set during traversing nat entries in NAT block, later
we can query and update nid usage status in memory completely.
With such implementation, I expect performance of node allocation can be
improved in the long-term after filesystem image is mounted.
Signed-off-by: Chao Yu <[email protected]>
Signed-off-by: Jaegeuk Kim <[email protected]>
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There are four places that getting the crc value in f2fs_checkpoint,
just add a new helper cur_cp_crc for them.
Signed-off-by: Kinglong Mee <[email protected]>
Signed-off-by: Jaegeuk Kim <[email protected]>
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Fixes: 2c237ebaa4 ("f2fs: avoid writing node/metapages during writes")
Signed-off-by: Kinglong Mee <[email protected]>
Signed-off-by: Jaegeuk Kim <[email protected]>
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Fixes: ba38c27eb9 ("f2fs: enhance lookup xattr")
Signed-off-by: Kinglong Mee <[email protected]>
Signed-off-by: Jaegeuk Kim <[email protected]>
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f2fs removes the old xattr data and appends the new data although
the new data is same as the exist.
Signed-off-by: Kinglong Mee <[email protected]>
Signed-off-by: Jaegeuk Kim <[email protected]>
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Since commit ee6d182f2a19 ("f2fs: remove syncing inode page in all the
cases") delayed inode element updating from inode cache to node page
cache, so once largest cached extent is updated, we can make inode dirty
immediately instead of checking and updating it in the end of extent
cache update.
The above commit didn't clean up unneeded codes in extent_cache.c, let's
finish the job in this patch.
Signed-off-by: Chao Yu <[email protected]>
Signed-off-by: Jaegeuk Kim <[email protected]>
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We use has_not_enough_free_secs to check if there are enough free segments,
(free_sections(sbi) + freed) <=
(node_secs + 2 * dent_secs + imeta_secs +
reserved_sections(sbi) + needed);
Under scenario with large number of dirty nodes, these nodes would be flushed
during cp, as a result, right side of the inequality would be decreased, while
left side stays unchanged if these nodes are flushed in SSR way, which means
there are enough free segments after this cp.
For this case, we just do a bggc instead of fggc.
Signed-off-by: Hou Pengyang <[email protected]>
Reviewed-by: Chao Yu <[email protected]>
Signed-off-by: Jaegeuk Kim <[email protected]>
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In SSR mode, we can allocate target segment which has different
temperature type from the type of current block, in order to avoid
mixing coldest and hottest data/node as much as possible, change
SSR allocation policy to select closer temperature for current
block prior.
Signed-off-by: Yunlong Song <[email protected]>
Signed-off-by: Chao Yu <[email protected]>
Signed-off-by: Jaegeuk Kim <[email protected]>
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Previously kernel message can show that in which function we do the
injection, but unfortunately, most of the caller are the same, for
tracking more information of injection path, it needs to show upper
caller's name. This patch supports that ability.
Signed-off-by: Chao Yu <[email protected]>
Signed-off-by: Jaegeuk Kim <[email protected]>
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Similar as f2fs_write_inode, f2fs_write_inline_data just
mark inode page dirty, so it's no need to write inline data
under read lock of cp_rwsem.
Signed-off-by: Yunlei He <[email protected]>
Signed-off-by: Jaegeuk Kim <[email protected]>
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This patches adds bitmaps to represent empty or full NAT blocks containing
free nid entries.
If we can find valid crc|cp_ver in the last block of checkpoint pack, we'll
use these bitmaps when building free nids. In order to avoid checkpointing
burden, up-to-date bitmaps will be flushed only during umount time. So,
normally we can get this gain, but when power-cut happens, we rely on fsck.f2fs
which recovers this bitmap again.
After this patch, we build free nids from nid #0 at mount time to make more
full NAT blocks, but in runtime, we check empty NAT blocks to load free nids
without loading any NAT pages from disk.
Signed-off-by: Jaegeuk Kim <[email protected]>
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This patch replace rw semaphore extent_tree_lock with mutex lock
for no read cases with this lock.
Signed-off-by: Yunlei He <[email protected]>
Signed-off-by: Jaegeuk Kim <[email protected]>
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When more than one data blocks are allocated, the F2FS_MAP_UNWRITTEN/MAPPED
flags will be overlapped by F2FS_MAP_NEW at the later times.
Signed-off-by: Kinglong Mee <[email protected]>
Reviewed-by: Chao Yu <[email protected]>
Signed-off-by: Jaegeuk Kim <[email protected]>
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proc A: proc B:
- writeback_sb_inodes
- __writeback_single_inode
- do_writepages
- f2fs_write_node_pages
- f2fs_balance_fs_bg - write_checkpoint
- build_free_nids - flush_nat_entries
- __build_free_nids - __flush_nat_entry_set
- ra_meta_pages - get_next_nat_page
- current_nat_addr - set_to_next_nat
[do nat_bitmap checking] - f2fs_change_bit
For proc A, nat_bitmap and nat_bitmap_mir would be compared without lock_op and
nm_i->nat_tree_lock, while proc B is changing nat_bitmap/nat_bitmap_ver in cp.
So it is normal for nat_bitmap/nat_bitmap diffrence under such scenario.
This patch fix this by removing the monitoring point.
[Fix: 599a09b f2fs: check in-memory nat version bitmap]
Signed-off-by: Hou Pengyang <[email protected]>
Signed-off-by: Jaegeuk Kim <[email protected]>
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To avoid such stale(fops, blk, len) info in f2fs_lookup_extent_tree_end tp
dio-23095 [005] ...1 17878.856859: f2fs_lookup_extent_tree_end:
dev = (259,30), ino = 856, pgofs = 0,
ext_info(fofs: 3441207040, blk: 4294967232, len: 3481143808)
Signed-off-by: Hou Pengyang <[email protected]>
Reviewed-by: Chao Yu <[email protected]>
Signed-off-by: Jaegeuk Kim <[email protected]>
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Since has_not_enough_free_secs(sbi, 0, 0) must be true if has_not_enough_
free_secs(sbi, sec_freed, 0) is true, write_checkpoint is sure to execute in
both conditions.
Signed-off-by: Yunlong Song <[email protected]>
Reviewed-by: Chao Yu <[email protected]>
Signed-off-by: Jaegeuk Kim <[email protected]>
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For converntional zones, we don't need to align discard commands to exact zone
size.
Reviewed-by: Chao Yu <[email protected]>
Signed-off-by: Jaegeuk Kim <[email protected]>
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We don't need to wait for each discard commands when unmounting the image.
Reviewed-by: Chao Yu <[email protected]>
Signed-off-by: Jaegeuk Kim <[email protected]>
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We have a kernel thread to issue discard commands, so we can increase the
number of batched discard sections. By default, now it becomes 4GB range.
Reviewed-by: Chao Yu <[email protected]>
Signed-off-by: Jaegeuk Kim <[email protected]>
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This patch adds MAX_DISCARD_BLOCKS() to avoid issuing too much large single
discard command.
Reviewed-by: Chao Yu <[email protected]>
Signed-off-by: Jaegeuk Kim <[email protected]>
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Geminilake HDMI codec 0x280d is similar to previous platforms, so add it with
similar ops as previous.
Signed-off-by: Senthilnathan Veppur <[email protected]>
Signed-off-by: Vinod Koul <[email protected]>
Signed-off-by: Takashi Iwai <[email protected]>
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Yuval Mintz says:
====================
qed: Bug fixes
Patch #1 addresses a day-one race which is dependent on the number of Vfs
[I.e., more child VFs from a single PF make it more probable].
Patch #2 corrects a race that got introduced in the last set of fixes for
qed, one that would happen each time PF transitions to UP state.
I've built & tested those against current net-next.
Please consider applying the series there.
====================
Signed-off-by: David S. Miller <[email protected]>
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Commit 653d2ffd6405 ("qed*: Fix link indication race") introduced another
race - one of the inner functions called from the link-change flow is
explicitly using the slowpath context dedicated PTT instead of gaining
that PTT from the caller. Since this flow can now be called from
a different context as well, we're in risk of the PTT breaking.
Fixes: 653d2ffd6405 ("qed*: Fix link indication race")
Signed-off-by: Yuval Mintz <[email protected]>
Signed-off-by: David S. Miller <[email protected]>
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A PF syncronizes all IOV activity relating to its VFs
by using a single workqueue handling the work.
The workqueue would reach a bitmask of pending VF events
and act upon each in turn.
Problem is that the indication of a VF message [which sets
the 'vf event' bit for that VF] arrives and is set in
the slowpath attention context, which isn't syncronized with
the processing of the events.
When multiple VFs are present, it's possible that PF would
lose the indication of one of the VF's pending evens, leading
that VF to later timeout.
Instead of adding locks/barriers, simply move from a bitmask
into a per-VF indication inside that VF entry in the PF database.
Signed-off-by: Yuval Mintz <[email protected]>
Signed-off-by: David S. Miller <[email protected]>
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Pablo Neira Ayuso says:
====================
Netfilter fixes for net
The following patchset contains netfilter fixes for you net tree,
they are:
1) Missing ct zone size in the nft_ct initialization path, patch
from Florian Westphal.
2) Two patches for netfilter uapi headers, one to remove unnecessary
sysctl.h inclusion and another to fix compilation of xt_hashlimit.h
in userspace, from Dmitry V. Levin.
3) Patch to fix a sloppy change in nf_ct_expect that incorrectly
simplified nf_ct_expect_related_report() in the previous nf-next
batch. This also includes another patch for __nf_ct_expect_check()
to report success by returning 0 to keep it consistent with other
existing functions. From Jarno Rajahalme.
4) The ->walk() iterator of the new bitmap set type goes over the real
bitmap size, this results in incorrect dumps when NFTA_SET_USERDATA
is used.
====================
Signed-off-by: David S. Miller <[email protected]>
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Add compat ioctl support to dma-buf. This lets one to use DMA_BUF_IOCTL_SYNC
ioctl from 32bit application on 64bit kernel. Data structures for both 32
and 64bit modes are same, so there is no need for additional translation
layer.
Signed-off-by: Marek Szyprowski <[email protected]>
Reviewed-by: Christian König <[email protected]>
Acked-by: Daniel Vetter <[email protected]>
Signed-off-by: Sumit Semwal <[email protected]>
Link: http://patchwork.freedesktop.org/patch/msgid/[email protected]
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On this machine, the micmute button is connected to Line2 of the
codec and the micmute led is connected to GPIO2 of the codec.
After applying this quirk, both hotkey and led work well.
Cc: <[email protected]>
Signed-off-by: Hui Wang <[email protected]>
Signed-off-by: Takashi Iwai <[email protected]>
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l2tp_ip_backlog_recv may not return -1 if the packet gets dropped.
The return value is passed up to ip_local_deliver_finish, which treats
negative values as an IP protocol number for resubmission.
Signed-off-by: Paul Hüber <[email protected]>
Signed-off-by: David S. Miller <[email protected]>
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Fix xfrm_neigh_lookup to provide dst->path to the
neigh_lookup dst_ops method.
When skb is provided, the IP address in packet should already
match the dst->path address family. But for the non-skb case,
we should consider the last tunnel address as nexthop address.
Fixes: f894cbf847c9 ("net: Add optional SKB arg to dst_ops->neigh_lookup().")
Signed-off-by: Julian Anastasov <[email protected]>
Signed-off-by: David S. Miller <[email protected]>
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