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First, move setting fe_done = 1 in spin lock, avoid bring any potential
race condition.
Second, tune mlog message level from ERROR to NOTICE, since the message
should not belong to error message.
Third, tune errno to -EAGAIN when file check queue is full, this errno
is more appropriate in the case.
Link: http://lkml.kernel.org/r/1495611866-27360-3-git-send-email-ghe@suse.com
Signed-off-by: Gang He <ghe@suse.com>
Cc: Mark Fasheh <mark@fasheh.com>
Cc: Joel Becker <jlbec@evilplan.org>
Cc: Junxiao Bi <junxiao.bi@oracle.com>
Cc: Joseph Qi <jiangqi903@gmail.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Patch series "ocfs2: use kobject for online file check", v3.
Use embedded kobject mechanism for online file check feature, this will
avoid to use a global list to save/search per-device online file check
related data. The changed code is based on Goldwyn Rodrigues's patches
and ext4 fs code, there is not any new features added, except some very
small fixes during this code refactoring. Second, the code change does
not affect the underlying file check code. Thank Goldwyn very much.
Compare with second version, add more comments in the patch
descriptions, to make sure each modification is mentioned. Compare with
first version, split the code change into four patches, make sure each
patch will not bring ocfs2 kernel modules compiling errors.
This patch (of 3):
Move some definitions to header file, which will be referenced by other
source files when kobject mechanism is introduced.
Link: http://lkml.kernel.org/r/1495611866-27360-2-git-send-email-ghe@suse.com
Signed-off-by: Gang He <ghe@suse.com>
Cc: Mark Fasheh <mark@fasheh.com>
Cc: Joel Becker <jlbec@evilplan.org>
Cc: Junxiao Bi <junxiao.bi@oracle.com>
Cc: Joseph Qi <jiangqi903@gmail.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Inspired by the ocfs2 patch to fix the spelling of migrateable to
migratable, I checked all ocfs2 files and found more spelling mistakes.
So correct them all.
Link: http://lkml.kernel.org/r/1521525734-19576-1-git-send-email-ge.changwei@h3c.com
Signed-off-by: Changwei Ge <ge.changwei@h3c.com>
Cc: Mark Fasheh <mfasheh@versity.com>
Cc: Joel Becker <jlbec@evilplan.org>
Cc: Junxiao Bi <junxiao.bi@oracle.com>
Cc: Joseph Qi <joseph.qi@huawei.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Trivial fix to spelling mistake in mlog message text
Link: http://lkml.kernel.org/r/20180319114101.2051-1-colin.king@canonical.com
Signed-off-by: Colin Ian King <colin.king@canonical.com>
Cc: Mark Fasheh <mark@fasheh.com>
Cc: Joel Becker <jlbec@evilplan.org>
Cc: Junxiao Bi <junxiao.bi@oracle.com>
Cc: Joseph Qi <jiangqi903@gmail.com>
Cc: Changwei Ge <ge.changwei@h3c.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Wait for dlm recovery done when migrating all lock resources in case that
new lock resource left after leaving dlm domain. And the left lock
resource will cause other nodes BUG.
NodeA NodeB NodeC
umount:
dlm_unregister_domain()
dlm_migrate_all_locks()
NodeB down
do recovery for NodeB
and collect a new lockres
form other live nodes:
dlm_do_recovery
dlm_remaster_locks
dlm_request_all_locks:
dlm_mig_lockres_handler
dlm_new_lockres
__dlm_insert_lockres
at last NodeA become the
master of the new lockres
and leave domain:
dlm_leave_domain()
mount:
dlm_join_domain()
touch file and request
for the owner of the new
lockres, but all the
other nodes said 'NO',
so NodeC decide to be
the owner, and send do
assert msg to other
nodes:
dlmlock()
dlm_get_lock_resource()
dlm_do_assert_master()
other nodes receive the msg
and found two masters exist.
at last cause BUG in
dlm_assert_master_handler()
-->BUG();
Link: http://lkml.kernel.org/r/5AAA6E25.7090303@huawei.com
Fixes: bc9838c4d44a ("dlm: allow dlm do recovery during shutdown")
Signed-off-by: Jun Piao <piaojun@huawei.com>
Reviewed-by: Alex Chen <alex.chen@huawei.com>
Reviewed-by: Yiwen Jiang <jiangyiwen@huawei.com>
Acked-by: Joseph Qi <jiangqi903@gmail.com>
Cc: Mark Fasheh <mark@fasheh.com>
Cc: Joel Becker <jlbec@evilplan.org>
Cc: Junxiao Bi <junxiao.bi@oracle.com>
Cc: Changwei Ge <ge.changwei@h3c.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Link: http://lkml.kernel.org/r/1521116681-14602-2-git-send-email-ge.changwei@h3c.com
Signed-off-by: Changwei Ge <ge.changwei@h3c.com>
Cc: Mark Fasheh <mark@fasheh.com>
Cc: Joseph Qi <jiangqi903@gmail.com>
Cc: Junxiao Bi <junxiao.bi@oracle.com>
Cc: Joel Becker <jlbec@evilplan.org>
Cc: Changwei Ge <ge.changwei@h3c.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Link: http://lkml.kernel.org/r/1521116681-14602-1-git-send-email-ge.changwei@h3c.com
Signed-off-by: Changwei Ge <ge.changwei@h3c.com>
Cc: Mark Fasheh <mark@fasheh.com>
Cc: Joseph Qi <jiangqi903@gmail.com>
Cc: Junxiao Bi <junxiao.bi@oracle.com>
Cc: Joel Becker <jlbec@evilplan.org>
Cc: Changwei Ge <ge.changwei@h3c.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Obviously, the comment before dlm_do_local_recovery_cleanup() has nothing
to do with it. So remove it.
Link: http://lkml.kernel.org/r/1519371054-4648-1-git-send-email-ge.changwei@h3c.com
Signed-off-by: Changwei Ge <ge.changwei@h3c.com>
Acked-by: Joseph Qi <jiangqi903@gmail.com>
Cc: Mark Fasheh <mark@fasheh.com>
Cc: Joel Becker <jlbec@evilplan.org>
Cc: Junxiao Bi <junxiao.bi@oracle.com>
Cc: Changwei Ge <ge.changwei@h3c.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
The two functions are no longer used.
Link: http://lkml.kernel.org/r/1519609595-26229-1-git-send-email-ge.changwei@h3c.com
Signed-off-by: Changwei Ge <ge.changwei@h3c.com>
Reviewed-by: Andrew Morton <akpm@linux-foundation.org>
Cc: Mark Fasheh <mark@fasheh.com>
Cc: Joel Becker <jlbec@evilplan.org>
Cc: Junxiao Bi <junxiao.bi@oracle.com>
Cc: Joseph Qi <jiangqi903@gmail.com>
Cc: Changwei Ge <ge.changwei@h3c.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
As kmem_cache_destroy() already handles null pointers, so we can remove
the conditional test entirely.
Link: http://lkml.kernel.org/r/5A9EB21D.3000209@huawei.com
Signed-off-by: Jun Piao <piaojun@huawei.com>
Reviewed-by: Yiwen Jiang <jiangyiwen@huawei.com>
Reviewed-by: Andrew Morton <akpm@linux-foundation.org>
Cc: Mark Fasheh <mark@fasheh.com>
Cc: Joel Becker <jlbec@evilplan.org>
Cc: Junxiao Bi <junxiao.bi@oracle.com>
Cc: Joseph Qi <jiangqi903@gmail.com>
Cc: Changwei Ge <ge.changwei@h3c.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
We should not handle migrate lockres if we are already in
'DLM_CTXT_IN_SHUTDOWN', as that will cause lockres remains after leaving
dlm domain. At last other nodes will get stuck into infinite loop when
requsting lock from us.
The problem is caused by concurrency umount between nodes. Before
receiveing N1's DLM_BEGIN_EXIT_DOMAIN_MSG, N2 has picked up N1 as the
migrate target. So N2 will continue sending lockres to N1 even though
N1 has left domain.
N1 N2 (owner)
touch file
access the file,
and get pr lock
begin leave domain and
pick up N1 as new owner
begin leave domain and
migrate all lockres done
begin migrate lockres to N1
end leave domain, but
the lockres left
unexpectedly, because
migrate task has passed
[piaojun@huawei.com: v3]
Link: http://lkml.kernel.org/r/5A9CBD19.5020107@huawei.com
Link: http://lkml.kernel.org/r/5A99F028.2090902@huawei.com
Signed-off-by: Jun Piao <piaojun@huawei.com>
Reviewed-by: Yiwen Jiang <jiangyiwen@huawei.com>
Reviewed-by: Joseph Qi <jiangqi903@gmail.com>
Reviewed-by: Changwei Ge <ge.changwei@h3c.com>
Cc: Mark Fasheh <mark@fasheh.com>
Cc: Joel Becker <jlbec@evilplan.org>
Cc: Junxiao Bi <junxiao.bi@oracle.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Keep the trace point consistent with the function name.
Link: http://lkml.kernel.org/r/02609aba-84b2-a22d-3f3b-bc1944b94260@huawei.com
Fixes: 3ef045c3d8ae ("ocfs2: switch to ->write_iter()")
Signed-off-by: Jia Guo <guojia12@huawei.com>
Reviewed-by: Jun Piao <piaojun@huawei.com>
Reviewed-by: Yiwen Jiang <jiangyiwen@huawei.com>
Reviewed-by: Alex Chen <alex.chen@huawei.com>
Acked-by: Gang He <ghe@suse.com>
Acked-by: Joseph Qi <jiangqi903@gmail.com>
Cc: Mark Fasheh <mark@fasheh.com>
Cc: Joel Becker <jlbec@evilplan.org>
Cc: Junxiao Bi <junxiao.bi@oracle.com>
Cc: Changwei Ge <ge.changwei@h3c.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Remove some unused function declarations in dlmcommon.h.
Link: http://lkml.kernel.org/r/5A7D1034.7050807@huawei.com
Signed-off-by: Jun Piao <piaojun@huawei.com>
Reviewed-by: Yiwen Jiang <jiangyiwen@huawei.com>
Reviewed-by: Changwei Ge <ge.changwei@h3c.com>
Reviewed-by: Alex Chen <alex.chen@huawei.com>
Cc: Mark Fasheh <mark@fasheh.com>
Cc: Joel Becker <jlbec@evilplan.org>
Cc: Junxiao Bi <junxiao.bi@oracle.com>
Cc: Joseph Qi <jiangqi903@gmail.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
We could use 'oi' instead of 'OCFS2_I()' to make code more elegant.
Link: http://lkml.kernel.org/r/5A7020FE.5050906@huawei.com
Signed-off-by: Jun Piao <piaojun@huawei.com>
Reviewed-by: Yiwen Jiang <jiangyiwen@huawei.com>
Reviewed-by: Alex Chen <alex.chen@huawei.com>
Reviewed-by: Andrew Morton <akpm@linux-foundation.org>
Cc: Mark Fasheh <mark@fasheh.com>
Cc: Joel Becker <jlbec@evilplan.org>
Cc: Junxiao Bi <junxiao.bi@oracle.com>
Cc: Joseph Qi <jiangqi903@gmail.com>
Cc: Changwei Ge <ge.changwei@h3c.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
We could use 'osb' instead of 'OCFS2_SB()' to make code more elegant.
Link: http://lkml.kernel.org/r/5A702111.7090907@huawei.com
Signed-off-by: Jun Piao <piaojun@huawei.com>
Reviewed-by: Yiwen Jiang <jiangyiwen@huawei.com>
Reviewed-by: Andrew Morton <akpm@linux-foundation.org>
Cc: Mark Fasheh <mark@fasheh.com>
Cc: Joel Becker <jlbec@evilplan.org>
Cc: Junxiao Bi <junxiao.bi@oracle.com>
Cc: Joseph Qi <jiangqi903@gmail.com>
Cc: Changwei Ge <ge.changwei@h3c.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
This is a fix for a regression in 32 bit kernels caused by an invalid
check for pgoff overflow in hugetlbfs mmap setup. The check incorrectly
specified that the size of a loff_t was the same as the size of a long.
The regression prevents mapping hugetlbfs files at offsets greater than
4GB on 32 bit kernels.
On 32 bit kernels conversion from a page based unsigned long can not
overflow a loff_t byte offset. Therefore, skip this check if
sizeof(unsigned long) != sizeof(loff_t).
Link: http://lkml.kernel.org/r/20180330145402.5053-1-mike.kravetz@oracle.com
Fixes: 63489f8e8211 ("hugetlbfs: check for pgoff value overflow")
Reported-by: Dan Rue <dan.rue@linaro.org>
Signed-off-by: Mike Kravetz <mike.kravetz@oracle.com>
Tested-by: Anders Roxell <anders.roxell@linaro.org>
Cc: Michal Hocko <mhocko@kernel.org>
Cc: Yisheng Xie <xieyisheng1@huawei.com>
Cc: "Kirill A . Shutemov" <kirill.shutemov@linux.intel.com>
Cc: Nic Losby <blurbdust@gmail.com>
Cc: <stable@vger.kernel.org>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Pull misc filesystem updates from Jan Kara:
"udf, ext2, quota, fsnotify fixes & cleanups:
- udf fixes for handling of media without uid/gid
- udf fixes for some corner cases in parsing of volume recognition
sequence
- improvements of fsnotify handling of ENOMEM
- new ioctl to allow setting of watch descriptor id for inotify (for
checkpoint - restart)
- small ext2, reiserfs, quota cleanups"
* 'for_linus' of git://git.kernel.org/pub/scm/linux/kernel/git/jack/linux-fs:
quota: Kill an unused extern entry form quota.h
reiserfs: Remove VLA from fs/reiserfs/reiserfs.h
udf: fix potential refcnt problem of nls module
ext2: change return code to -ENOMEM when failing memory allocation
udf: Do not mark possibly inconsistent filesystems as closed
fsnotify: Let userspace know about lost events due to ENOMEM
fanotify: Avoid lost events due to ENOMEM for unlimited queues
udf: Remove never implemented mount options
udf: Update mount option documentation
udf: Provide saner default for invalid uid / gid
udf: Clean up handling of invalid uid/gid
udf: Apply uid/gid mount options also to new inodes & chown
udf: Ignore [ug]id=ignore mount options
udf: Fix handling of Partition Descriptors
udf: Unify common handling of descriptors
udf: Convert descriptor index definitions to enum
udf: Allow volume descriptor sequence to be terminated by unrecorded block
udf: Simplify handling of Volume Descriptor Pointers
udf: Fix off-by-one in volume descriptor sequence length
inotify: Extend ioctl to allow to request id of new watch descriptor
server xdr decoding (with an eye towards eliminating a data copy in the
RDMA case).
I did some refactoring of the delegation code in preparation for
eliminating some delegation self-conflicts and implementing write
delegations.
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Merge tag 'nfsd-4.17' of git://linux-nfs.org/~bfields/linux
Pull nfsd updates from Bruce Fields:
"Chuck Lever did a bunch of work on nfsd tracepoints, on RDMA, and on
server xdr decoding (with an eye towards eliminating a data copy in
the RDMA case).
I did some refactoring of the delegation code in preparation for
eliminating some delegation self-conflicts and implementing write
delegations"
* tag 'nfsd-4.17' of git://linux-nfs.org/~bfields/linux: (40 commits)
nfsd: fix incorrect umasks
sunrpc: remove incorrect HMAC request initialization
NFSD: Clean up legacy NFS SYMLINK argument XDR decoders
NFSD: Clean up legacy NFS WRITE argument XDR decoders
nfsd: Trace NFSv4 COMPOUND execution
nfsd: Add I/O trace points in the NFSv4 read proc
nfsd: Add I/O trace points in the NFSv4 write path
nfsd: Add "nfsd_" to trace point names
nfsd: Record request byte count, not count of vectors
nfsd: Fix NFSD trace points
svc: Report xprt dequeue latency
sunrpc: Report per-RPC execution stats
sunrpc: Re-purpose trace_svc_process
sunrpc: Save remote presentation address in svc_xprt for trace events
sunrpc: Simplify trace_svc_recv
sunrpc: Simplify do_enqueue tracing
sunrpc: Move trace_svc_xprt_dequeue()
sunrpc: Update show_svc_xprt_flags() to include recently added flags
svc: Simplify ->xpo_secure_port
sunrpc: Remove unneeded pointer dereference
...
In this round, we've mainly focused on performance tuning and critical bug fixes
occurred in low-end devices. Sheng Yong introduced lost_found feature to keep
missing files during recovery instead of thrashing them. We're preparing coming
fsverity implementation. And, we've got more features to communicate with users
for better performance. In low-end devices, some memory-related issues were
fixed, and subtle race condtions and corner cases were addressed as well.
Enhancement:
- large nat bitmaps for more free node ids
- add three block allocation policies to pass down write hints given by user
- expose extension list to user and introduce hot file extension
- tune small devices seamlessly for low-end devices
- set readdir_ra by default
- give more resources under gc_urgent mode regarding to discard and cleaning
- introduce fsync_mode to enforce posix or not
- nowait aio support
- add lost_found feature to keep dangling inodes
- reserve bits for future fsverity feature
- add test_dummy_encryption for FBE
Bug fix:
- don't use highmem for dentry pages
- align memory boundary for bitops
- truncate preallocated blocks in write errors
- guarantee i_times on fsync call
- clear CP_TRIMMED_FLAG correctly
- prevent node chain loop during recovery
- avoid data race between atomic write and background cleaning
- avoid unnecessary selinux violation warnings on resgid option
- GFP_NOFS to avoid deadlock in quota and read paths
- fix f2fs_skip_inode_update to allow i_size recovery
In addition to them, there are several minor bug fixes and clean-ups.
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Merge tag 'f2fs-for-4.17' of git://git.kernel.org/pub/scm/linux/kernel/git/jaegeuk/f2fs
Pull f2fs update from Jaegeuk Kim:
"In this round, we've mainly focused on performance tuning and critical
bug fixes occurred in low-end devices. Sheng Yong introduced
lost_found feature to keep missing files during recovery instead of
thrashing them. We're preparing coming fsverity implementation. And,
we've got more features to communicate with users for better
performance. In low-end devices, some memory-related issues were
fixed, and subtle race condtions and corner cases were addressed as
well.
Enhancements:
- large nat bitmaps for more free node ids
- add three block allocation policies to pass down write hints given by user
- expose extension list to user and introduce hot file extension
- tune small devices seamlessly for low-end devices
- set readdir_ra by default
- give more resources under gc_urgent mode regarding to discard and cleaning
- introduce fsync_mode to enforce posix or not
- nowait aio support
- add lost_found feature to keep dangling inodes
- reserve bits for future fsverity feature
- add test_dummy_encryption for FBE
Bug fixes:
- don't use highmem for dentry pages
- align memory boundary for bitops
- truncate preallocated blocks in write errors
- guarantee i_times on fsync call
- clear CP_TRIMMED_FLAG correctly
- prevent node chain loop during recovery
- avoid data race between atomic write and background cleaning
- avoid unnecessary selinux violation warnings on resgid option
- GFP_NOFS to avoid deadlock in quota and read paths
- fix f2fs_skip_inode_update to allow i_size recovery
In addition to the above, there are several minor bug fixes and clean-ups"
* tag 'f2fs-for-4.17' of git://git.kernel.org/pub/scm/linux/kernel/git/jaegeuk/f2fs: (50 commits)
f2fs: remain written times to update inode during fsync
f2fs: make assignment of t->dentry_bitmap more readable
f2fs: truncate preallocated blocks in error case
f2fs: fix a wrong condition in f2fs_skip_inode_update
f2fs: reserve bits for fs-verity
f2fs: Add a segment type check in inplace write
f2fs: no need to initialize zero value for GFP_F2FS_ZERO
f2fs: don't track new nat entry in nat set
f2fs: clean up with F2FS_BLK_ALIGN
f2fs: check blkaddr more accuratly before issue a bio
f2fs: Set GF_NOFS in read_cache_page_gfp while doing f2fs_quota_read
f2fs: introduce a new mount option test_dummy_encryption
f2fs: introduce F2FS_FEATURE_LOST_FOUND feature
f2fs: release locks before return in f2fs_ioc_gc_range()
f2fs: align memory boundary for bitops
f2fs: remove unneeded set_cold_node()
f2fs: add nowait aio support
f2fs: wrap all options with f2fs_sb_info.mount_opt
f2fs: Don't overwrite all types of node to keep node chain
f2fs: introduce mount option for fsync mode
...
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Merge tag 'for-4.17/block-20180402' of git://git.kernel.dk/linux-block
Pull block layer updates from Jens Axboe:
"It's a pretty quiet round this time, which is nice. This contains:
- series from Bart, cleaning up the way we set/test/clear atomic
queue flags.
- series from Bart, fixing races between gendisk and queue
registration and removal.
- set of bcache fixes and improvements from various folks, by way of
Michael Lyle.
- set of lightnvm updates from Matias, most of it being the 1.2 to
2.0 transition.
- removal of unused DIO flags from Nikolay.
- blk-mq/sbitmap memory ordering fixes from Omar.
- divide-by-zero fix for BFQ from Paolo.
- minor documentation patches from Randy.
- timeout fix from Tejun.
- Alpha "can't write a char atomically" fix from Mikulas.
- set of NVMe fixes by way of Keith.
- bsg and bsg-lib improvements from Christoph.
- a few sed-opal fixes from Jonas.
- cdrom check-disk-change deadlock fix from Maurizio.
- various little fixes, comment fixes, etc from various folks"
* tag 'for-4.17/block-20180402' of git://git.kernel.dk/linux-block: (139 commits)
blk-mq: Directly schedule q->timeout_work when aborting a request
blktrace: fix comment in blktrace_api.h
lightnvm: remove function name in strings
lightnvm: pblk: remove some unnecessary NULL checks
lightnvm: pblk: don't recover unwritten lines
lightnvm: pblk: implement 2.0 support
lightnvm: pblk: implement get log report chunk
lightnvm: pblk: rename ppaf* to addrf*
lightnvm: pblk: check for supported version
lightnvm: implement get log report chunk helpers
lightnvm: make address conversions depend on generic device
lightnvm: add support for 2.0 address format
lightnvm: normalize geometry nomenclature
lightnvm: complete geo structure with maxoc*
lightnvm: add shorten OCSSD version in geo
lightnvm: add minor version to generic geometry
lightnvm: simplify geometry structure
lightnvm: pblk: refactor init/exit sequences
lightnvm: Avoid validation of default op value
lightnvm: centralize permission check for lightnvm ioctl
...
Pull trivial tree updates from Jiri Kosina.
* 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/jikos/trivial:
kfifo: fix inaccurate comment
tools/thermal: tmon: fix for segfault
net: Spelling s/stucture/structure/
edd: don't spam log if no EDD information is present
Documentation: Fix early-microcode.txt references after file rename
tracing: Block comments should align the * on each line
treewide: Fix typos in printk
GenWQE: Fix a typo in two comments
treewide: Align function definition open/close braces
do_chunk_alloc implements a loop checking whether there is a pending
chunk allocation and if so causes the caller do loop. Generally this
loop is executed only once, however testing with btrfs/072 on a single
core vm machines uncovered an extreme case where the system could loop
indefinitely. This is due to a missing cond_resched when loop which
doesn't give a chance to the previous chunk allocator finish its job.
The fix is to simply add the missing cond_resched.
Fixes: 6d74119f1a3e ("Btrfs: avoid taking the chunk_mutex in do_chunk_alloc")
Signed-off-by: Nikolay Borisov <nborisov@suse.com>
Reviewed-by: David Sterba <dsterba@suse.com>
Signed-off-by: David Sterba <dsterba@suse.com>
If errors were returned by btrfs_next_leaf(), replay_dir_deletes needs
to bail out, otherwise @ret would be forced to be 0 after 'break;' and
the caller won't be aware of it.
Fixes: e02119d5a7b4 ("Btrfs: Add a write ahead tree log to optimize synchronous operations")
Reviewed-by: Nikolay Borisov <nborisov@suse.com>
Signed-off-by: Liu Bo <bo.liu@linux.alibaba.com>
Signed-off-by: David Sterba <dsterba@suse.com>
0, 1 and <0 can be returned by btrfs_next_leaf(), and when <0 is
returned, path->nodes[0] could be NULL, log_dir_items lacks such a
check for <0 and we may run into a null pointer dereference panic.
Fixes: e02119d5a7b4 ("Btrfs: Add a write ahead tree log to optimize synchronous operations")
Reviewed-by: Nikolay Borisov <nborisov@suse.com>
Signed-off-by: Liu Bo <bo.liu@linux.alibaba.com>
Signed-off-by: David Sterba <dsterba@suse.com>
Here is the big set of char/misc driver patches for 4.17-rc1.
There are a lot of little things in here, nothing huge, but all
important to the different hardware types involved:
- thunderbolt driver updates
- parport updates (people still care...)
- nvmem driver updates
- mei updates (as always)
- hwtracing driver updates
- hyperv driver updates
- extcon driver updates
- and a handfull of even smaller driver subsystem and individual
driver updates
All of these have been in linux-next with no reported issues.
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
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Merge tag 'char-misc-4.17-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/char-misc
Pull char/misc updates from Greg KH:
"Here is the big set of char/misc driver patches for 4.17-rc1.
There are a lot of little things in here, nothing huge, but all
important to the different hardware types involved:
- thunderbolt driver updates
- parport updates (people still care...)
- nvmem driver updates
- mei updates (as always)
- hwtracing driver updates
- hyperv driver updates
- extcon driver updates
- ... and a handful of even smaller driver subsystem and individual
driver updates
All of these have been in linux-next with no reported issues"
* tag 'char-misc-4.17-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/char-misc: (149 commits)
hwtracing: Add HW tracing support menu
intel_th: Add ACPI glue layer
intel_th: Allow forcing host mode through drvdata
intel_th: Pick up irq number from resources
intel_th: Don't touch switch routing in host mode
intel_th: Use correct method of finding hub
intel_th: Add SPDX GPL-2.0 header to replace GPLv2 boilerplate
stm class: Make dummy's master/channel ranges configurable
stm class: Add SPDX GPL-2.0 header to replace GPLv2 boilerplate
MAINTAINERS: Bestow upon myself the care for drivers/hwtracing
hv: add SPDX license id to Kconfig
hv: add SPDX license to trace
Drivers: hv: vmbus: do not mark HV_PCIE as perf_device
Drivers: hv: vmbus: respect what we get from hv_get_synint_state()
/dev/mem: Avoid overwriting "err" in read_mem()
eeprom: at24: use SPDX identifier instead of GPL boiler-plate
eeprom: at24: simplify the i2c functionality checking
eeprom: at24: fix a line break
eeprom: at24: tweak newlines
eeprom: at24: refactor at24_probe()
...
Here is the big set of tty and serial driver patches for 4.17-rc1
Not all that big really, most are just small fixes and additions to
existing drivers. There's a bunch of work on the imx serial driver
recently for some reason, and a new embedded serial driver added as
well.
Full details are in the shortlog.
All of these have been in the linux-next tree for a while with no
reported issues.
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
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Merge tag 'tty-4.17-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/tty
Pull tty/serial driver updates from Greg KH:
"Here is the big set of tty and serial driver patches for 4.17-rc1
Not all that big really, most are just small fixes and additions to
existing drivers. There's a bunch of work on the imx serial driver
recently for some reason, and a new embedded serial driver added as
well.
Full details are in the shortlog.
All of these have been in the linux-next tree for a while with no
reported issues"
* tag 'tty-4.17-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/tty: (66 commits)
serial: expose buf_overrun count through proc interface
serial: mvebu-uart: fix tx lost characters
tty: serial: msm_geni_serial: Fix return value check in qcom_geni_serial_probe()
tty: serial: msm_geni_serial: Add serial driver support for GENI based QUP
8250-men-mcb: add support for 16z025 and 16z057
powerpc: Mark the variable earlycon_acpi_spcr_enable maybe_unused
serial: stm32: fix initialization of RS485 mode
ARM: dts: STi: Remove "console=ttyASN" from bootargs for STi boards
vt: change SGR 21 to follow the standards
serdev: Fix typo in serdev_device_alloc
ARM: dts: STi: Fix aliases property name for STi boards
tty: st-asc: Update tty alias
serial: stm32: add support for RS485 hardware control mode
dt-bindings: serial: stm32: add RS485 optional properties
selftests: add devpts selftests
devpts: comment devpts_mntget()
devpts: resolve devpts bind-mounts
devpts: hoist out check for DEVPTS_SUPER_MAGIC
serial: 8250: Add Nuvoton NPCM UART
serial: mxs-auart: disable clks of Alphascale ASM9260
...
The parameter *old_lprops* is never used in lpt_heap_replace(),
remove it to avoid compile warning.
Signed-off-by: Jiang Biao <jiang.biao2@zte.com.cn>
Signed-off-by: Richard Weinberger <richard@nod.at>
Constify struct ubifs_lprops in scan_for_leb_for_idx to be
consistent with other references.
Signed-off-by: Jiang Biao <jiang.biao2@zte.com.cn>
Signed-off-by: Richard Weinberger <richard@nod.at>
Assigning a value of a variable to itself is not useful. This
fixes a warning shown when using clang:
warning: explicitly assigning value of variable of type 'int' to itself [-Wself-assign]
Signed-off-by: Stefan Agner <stefan@agner.ch>
Signed-off-by: Richard Weinberger <richard@nod.at>
If ubifs_wbuf_sync() fails we must not write a master node with the
dirty marker cleared.
Otherwise it is possible that in case of an IO error while syncing we
mark the filesystem as clean and UBIFS refuses to recover upon next
mount.
Cc: <stable@vger.kernel.org>
Fixes: 1e51764a3c2a ("UBIFS: add new flash file system")
Signed-off-by: Richard Weinberger <richard@nod.at>
robust against maliciously crafted file system images. (I still don't
recommend that container folks hold any delusions that mounting
arbitary images that can be crafted by malicious attackers should be
considered sane thing to do, though!)
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Merge tag 'ext4_for_linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tytso/ext4
Pull ext4 updates from Ted Ts'o:
"Cleanups and bugfixes for ext4, including some fixes to make ext4 more
robust against maliciously crafted file system images.
(I still don't recommend that container folks hold any delusions that
mounting arbitary images that can be crafted by malicious attackers
should be considered sane thing to do, though!)"
* tag 'ext4_for_linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tytso/ext4: (29 commits)
ext4: force revalidation of directory pointer after seekdir(2)
ext4: add extra checks to ext4_xattr_block_get()
ext4: add bounds checking to ext4_xattr_find_entry()
ext4: move call to ext4_error() into ext4_xattr_check_block()
ext4: don't show data=<mode> option if defaulted
ext4: omit init_itable=n in procfs when disabled
ext4: show more binary mount options in procfs
ext4: simplify kobject usage
ext4: remove unused parameters in sysfs code
ext4: null out kobject* during sysfs cleanup
ext4: don't allow r/w mounts if metadata blocks overlap the superblock
ext4: always initialize the crc32c checksum driver
ext4: fail ext4_iget for root directory if unallocated
ext4: limit xattr size to INT_MAX
ext4: add validity checks for bitmap block numbers
ext4: fix comments in ext4_swap_extents()
ext4: use generic_writepages instead of __writepage/write_cache_pages
ext4: don't complain about incorrect features when probing
ext4: remove EXT4_STATE_DIOREAD_LOCK flag
ext4: fix offset overflow on 32-bit archs in ext4_iomap_begin()
...
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Merge tag '4.17-SMB3-Fixes' of git://git.samba.org/sfrench/cifs-2.6
Pull cifs updates from Steve French:
"Includes SMB3.11 security improvements, as well as various fixes for
stable and some debugging improvements"
* tag '4.17-SMB3-Fixes' of git://git.samba.org/sfrench/cifs-2.6:
cifs: Add minor debug message during negprot
smb3: Fix root directory when server returns inode number of zero
cifs: fix sparse warning on previous patch in a few printks
cifs: add server->vals->header_preamble_size
cifs: smbd: disconnect transport on RDMA errors
cifs: smbd: avoid reconnect lockup
Don't log confusing message on reconnect by default
Don't log expected error on DFS referral request
fs: cifs: Replace _free_xid call in cifs_root_iget function
SMB3.1.1 dialect is no longer experimental
Tree connect for SMB3.1.1 must be signed for non-encrypted shares
fix smb3-encryption breakage when CONFIG_DEBUG_SG=y
CIFS: fix sha512 check in cifs_crypto_secmech_release
CIFS: implement v3.11 preauth integrity
CIFS: add sha512 secmech
CIFS: refactor crypto shash/sdesc allocation&free
Update README file for cifs.ko
Update TODO list for cifs.ko
cifs: fix memory leak in SMB2_open()
CIFS: SMBD: fix spelling mistake: "faield" and "legnth"
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Merge tag 'v4.16-rc2' of git://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux into mtd/next
Backmerge v4.16-rc2 into mtd/next to resolve a conflict between Linus'
master branch and nand/for-4.17.
1. Abhi Das contributed a patch to report journal recovery times more
accurately during journal replay.
2. Andreas Gruenbacher contributed a patch to fix fallocate chunk size.
3. Andreas added a patch to correctly dirty inodes during rename.
4. Andreas added a patch to improve the comment for function gfs2_block_map.
5. Andreas added a patch to improve kernel trace point iomap end:
The physical block address was added.
6. Andreas added a patch to fix a nasty file system corruption bug that
surfaced in xfstests 476 in punch-hole/truncate.
7. Andreas fixed a problem Christoph Helwig pointed out, namely, that GFS2
was misusing the IOMAP_ZERO flag. The zeroing of new blocks was moved
to the proper fallocate code.
8. I contributed a patch to declare function gfs2_remove_from_ail as static.
9. I added a patch to only set PageChecked for jdata page writes.
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Merge tag 'gfs2-4.17.fixes' of git://git.kernel.org/pub/scm/linux/kernel/git/gfs2/linux-gfs2
Pull gfs2 updates from Bob Peterson:
"We've only got nine GFS2 patches for this merge window:
- report journal recovery times more accurately during journal replay
(Abhi Das)
- fix fallocate chunk size (Andreas Gruenbacher)
- correctly dirty inodes during rename (Andreas Gruenbacher)
- improve the comment for function gfs2_block_map (Andreas
Gruenbacher)
- improve kernel trace point iomap end: The physical block address
was added (Andreas Gruenbacher)
- fix a nasty file system corruption bug that surfaced in xfstests
476 in punch-hole/truncate (Andreas Gruenbacher)
- fix a problem Christoph Helwig pointed out, namely, that GFS2 was
misusing the IOMAP_ZERO flag. The zeroing of new blocks was moved
to the proper fallocate code (Andreas Gruenbacher)
- declare function gfs2_remove_from_ail as static (Bob Peterson)
- only set PageChecked for jdata page writes (Bob Peterson)"
* tag 'gfs2-4.17.fixes' of git://git.kernel.org/pub/scm/linux/kernel/git/gfs2/linux-gfs2:
gfs2: time journal recovery steps accurately
gfs2: Zero out fallocated blocks in fallocate_chunk
gfs2: Check for the end of metadata in punch_hole
gfs2: gfs2_iomap_end tracepoint: log block address
gfs2: Improve gfs2_block_map comment
GFS2: Only set PageChecked for jdata pages
GFS2: Make function gfs2_remove_from_ail static
gfs2: Dirty source inode during rename
gfs2: Fix fallocate chunk size
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Merge tag 'for-4.17-tag' of git://git.kernel.org/pub/scm/linux/kernel/git/kdave/linux
Pull btrfs updates from David Sterba:
"There are a several user visible changes, the rest is mostly invisible
and continues to clean up the whole code base.
User visible changes:
- new mount option nossd_spread (pair for ssd_spread)
- mount option subvolid will detect junk after the number and fail
the mount
- add message after cancelled device replace
- direct module dependency on libcrc32, removed own crc wrappers
- removed user space transaction ioctls
- use lighter locking when reading /proc/self/mounts, RCU instead of
mutex to avoid unnecessary contention
Enhancements:
- skip writeback of last page when truncating file to same size
- send: do not issue unnecessary truncate operations
- mount option token specifiers: use %u for unsigned values, more
validation
- selftests: more tree block validations
qgroups:
- preparatory work for splitting reservation types for data and
metadata, this should allow for more accurate tracking and fix some
issues with underflows or do further enhancements
- split metadata reservations for started and joined transaction so
they do not get mixed up and are accounted correctly at commit time
- with the above, it's possible to revert patch that potentially
deadlocks when trying to make more space by explicitly committing
when the quota limit is hit
- fix root item corruption when multiple same source snapshots are
created with quota enabled
RAID56:
- make sure target is identical to source when raid56 rebuild fails
after dev-replace
- faster rebuild during scrub, batch by stripes and not
block-by-block
- make more use of cached data when rebuilding from a missing device
Fixes:
- null pointer deref when device replace target is missing
- fix fsync after hole punching when using no-holes feature
- fix lockdep splat when allocating percpu data with wrong GFP flags
Cleanups, refactoring, core changes:
- drop redunant parameters from various functions
- kill and opencode trivial helpers
- __cold/__exit function annotations
- dead code removal
- continued audit and documentation of memory barriers
- error handling: handle removal from uuid tree
- error handling: remove handling of impossible condtitons
- more debugging or error messages
- updated tracepoints
- one VLA use removal (and one still left)"
* tag 'for-4.17-tag' of git://git.kernel.org/pub/scm/linux/kernel/git/kdave/linux: (164 commits)
btrfs: lift errors from add_extent_changeset to the callers
Btrfs: print error messages when failing to read trees
btrfs: user proper type for btrfs_mask_flags flags
btrfs: split dev-replace locking helpers for read and write
btrfs: remove stale comments about fs_mutex
btrfs: use RCU in btrfs_show_devname for device list traversal
btrfs: update barrier in should_cow_block
btrfs: use lockdep_assert_held for mutexes
btrfs: use lockdep_assert_held for spinlocks
btrfs: Validate child tree block's level and first key
btrfs: tests/qgroup: Fix wrong tree backref level
Btrfs: fix copy_items() return value when logging an inode
Btrfs: fix fsync after hole punching when using no-holes feature
btrfs: use helper to set ulist aux from a qgroup
Revert "btrfs: qgroups: Retry after commit on getting EDQUOT"
btrfs: qgroup: Update trace events for metadata reservation
btrfs: qgroup: Use root::qgroup_meta_rsv_* to record qgroup meta reserved space
btrfs: delayed-inode: Use new qgroup meta rsv for delayed inode and item
btrfs: qgroup: Use separate meta reservation type for delalloc
btrfs: qgroup: Introduce function to convert META_PREALLOC into META_PERTRANS
...
- Various cleanups and code fixes
- Implement lazytime as a mount option
- Convert various on-disk metadata checks from asserts to -EFSCORRUPTED
- Fix accounting problems with the rmap per-ag reservations
- Refactorings and cleanups for xfs_log_force
- Various bugfixes for the reflink code
- Work around v5 AGFL padding problems to prevent fs shutdowns
- Establish inode fork verifiers to inspect on-disk metadata correctness
- Various online scrub fixes
- Fix v5 swapext blowing up on deleted inodes
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Merge tag 'xfs-4.17-merge-1' of git://git.kernel.org/pub/scm/fs/xfs/xfs-linux
Pull xfs updates from Darrick Wong:
"Here's the first round of fixes for XFS for 4.17.
The biggest new features this time around are the addition of lazytime
support, further enhancement of the on-disk inode metadata verifiers,
and a patch to smooth over some of the AGFL padding problems that have
intermittently plagued users since 4.5. I forsee sending a second pull
request next week with further bug fixes and speedups in the online
scrub code and elsewhere.
This series has been run through a full xfstests run over the weekend
and through a quick xfstests run against this morning's master, with
no major failures reported.
Summary of changes for this release:
- Various cleanups and code fixes
- Implement lazytime as a mount option
- Convert various on-disk metadata checks from asserts to -EFSCORRUPTED
- Fix accounting problems with the rmap per-ag reservations
- Refactorings and cleanups for xfs_log_force
- Various bugfixes for the reflink code
- Work around v5 AGFL padding problems to prevent fs shutdowns
- Establish inode fork verifiers to inspect on-disk metadata
correctness
- Various online scrub fixes
- Fix v5 swapext blowing up on deleted inodes"
* tag 'xfs-4.17-merge-1' of git://git.kernel.org/pub/scm/fs/xfs/xfs-linux: (49 commits)
xfs: do not log/recover swapext extent owner changes for deleted inodes
xfs: clean up xfs_mount allocation and dynamic initializers
xfs: remove dead inode version setting code
xfs: catch inode allocation state mismatch corruption
xfs: xfs_scrub_iallocbt_xref_rmap_inodes should use xref_set_corrupt
xfs: flag inode corruption if parent ptr doesn't get us a real inode
xfs: don't accept inode buffers with suspicious unlinked chains
xfs: move inode extent size hint validation to libxfs
xfs: record inode buf errors as a xref error in inobt scrubber
xfs: remove xfs_buf parameter from inode scrub methods
xfs: inode scrubber shouldn't bother with raw checks
xfs: bmap scrubber should do rmap xref with bmap for sparse files
xfs: refactor inode buffer verifier error logging
xfs: refactor inode verifier error logging
xfs: refactor bmap record validation
xfs: sanity-check the unused space before trying to use it
xfs: detect agfl count corruption and reset agfl
xfs: unwind the try_again loop in xfs_log_force
xfs: refactor xfs_log_force_lsn
xfs: minor cleanup for xfs_reflink_end_cow
...
Pull vfs dcache updates from Al Viro:
"Part of this is what the trylock loop elimination series has turned
into, part making d_move() preserve the parent (and thus the path) of
victim, plus some general cleanups"
* 'work.dcache' of git://git.kernel.org/pub/scm/linux/kernel/git/viro/vfs: (22 commits)
d_genocide: move export to definition
fold dentry_lock_for_move() into its sole caller and clean it up
make non-exchanging __d_move() copy ->d_parent rather than swap them
oprofilefs: don't oops on allocation failure
lustre: get rid of pointless casts to struct dentry *
debugfs_lookup(): switch to lookup_one_len_unlocked()
fold lookup_real() into __lookup_hash()
take out orphan externs (empty_string/slash_string)
split d_path() and friends into a separate file
dcache.c: trim includes
fs/dcache: Avoid a try_lock loop in shrink_dentry_list()
get rid of trylock loop around dentry_kill()
handle move to LRU in retain_dentry()
dput(): consolidate the "do we need to retain it?" into an inlined helper
split the slow part of lock_parent() off
now lock_parent() can't run into killed dentry
get rid of trylock loop in locking dentries on shrink list
d_delete(): get rid of trylock loop
fs/dcache: Move dentry_kill() below lock_parent()
fs/dcache: Remove stale comment from dentry_kill()
...
Attach copies of the index key and auxiliary data to the fscache cookie so
that:
(1) The callbacks to the netfs for this stuff can be eliminated. This
can simplify things in the cache as the information is still
available, even after the cache has relinquished the cookie.
(2) Simplifies the locking requirements of accessing the information as we
don't have to worry about the netfs object going away on us.
(3) The cache can do lazy updating of the coherency information on disk.
As long as the cache is flushed before reboot/poweroff, there's no
need to update the coherency info on disk every time it changes.
(4) Cookies can be hashed or put in a tree as the index key is easily
available. This allows:
(a) Checks for duplicate cookies can be made at the top fscache layer
rather than down in the bowels of the cache backend.
(b) Caching can be added to a netfs object that has a cookie if the
cache is brought online after the netfs object is allocated.
A certain amount of space is made in the cookie for inline copies of the
data, but if it won't fit there, extra memory will be allocated for it.
The downside of this is that live cache operation requires more memory.
Signed-off-by: David Howells <dhowells@redhat.com>
Acked-by: Anna Schumaker <anna.schumaker@netapp.com>
Tested-by: Steve Dickson <steved@redhat.com>
Add more tracepoints to fscache, including:
(*) fscache_page - Tracks netfs pages known to fscache.
(*) fscache_check_page - Tracks the netfs querying whether a page is
pending storage.
(*) fscache_wake_cookie - Tracks cookies being woken up after a page
completes/aborts storage in the cache.
(*) fscache_op - Tracks operations being initialised.
(*) fscache_wrote_page - Tracks return of the backend write_page op.
(*) fscache_gang_lookup - Tracks lookup of pages to be stored in the write
operation.
Signed-off-by: David Howells <dhowells@redhat.com>
Add some tracepoints to fscache:
(*) fscache_cookie - Tracks a cookie's usage count.
(*) fscache_netfs - Logs registration of a network filesystem, including
the pointer to the cookie allocated.
(*) fscache_acquire - Logs cookie acquisition.
(*) fscache_relinquish - Logs cookie relinquishment.
(*) fscache_enable - Logs enablement of a cookie.
(*) fscache_disable - Logs disablement of a cookie.
(*) fscache_osm - Tracks execution of states in the object state machine.
and cachefiles:
(*) cachefiles_ref - Tracks a cachefiles object's usage count.
(*) cachefiles_lookup - Logs result of lookup_one_len().
(*) cachefiles_mkdir - Logs result of vfs_mkdir().
(*) cachefiles_create - Logs result of vfs_create().
(*) cachefiles_unlink - Logs calls to vfs_unlink().
(*) cachefiles_rename - Logs calls to vfs_rename().
(*) cachefiles_mark_active - Logs an object becoming active.
(*) cachefiles_wait_active - Logs a wait for an old object to be
destroyed.
(*) cachefiles_mark_inactive - Logs an object becoming inactive.
(*) cachefiles_mark_buried - Logs the burial of an object.
Signed-off-by: David Howells <dhowells@redhat.com>
If the fscache asynchronous write operation elects to discard a page that's
pending storage to the cache because the page would be over the store limit
then it needs to wake the page as someone may be waiting on completion of
the write.
The problem is that the store limit may be updated by a different
asynchronous operation - and so may miss the write - and that the store
limit may not even get updated until later by the netfs.
Fix the kernel hang by making fscache_write_op() mark as written any pages
that are over the limit.
Signed-off-by: David Howells <dhowells@redhat.com>
The last parameter to fscache_op_complete() is a bool indicating whether or
not the operation was cancelled. A lot of the time the inverse value is
given or no differentiation is made. Fix this.
Signed-off-by: David Howells <dhowells@redhat.com>
Fix a couple of checker warnings in fscache and cachefiles:
(1) fscache_n_op_requeue is never used, so get rid of it.
(2) cachefiles_uncache_page() is passed in a lock that it releases, so
this needs annotating.
Signed-off-by: David Howells <dhowells@redhat.com>
When relinquishing cookies, either due to iget failure or to inode
eviction, retire a cookie if we think the corresponding vnode got deleted
on the server rather than just letting it lie in the cache.
Signed-off-by: David Howells <dhowells@redhat.com>
AFS vnodes (files) are referenced by a triplet of { volume ID, vnode ID,
uniquifier }. Currently, kafs is only using the vnode ID as the file key
in the volume fscache index and checking the uniquifier on cookie
acquisition against the contents of the auxiliary data stored in the cache.
Unfortunately, this is subject to a race in which an FS.RemoveFile or
FS.RemoveDir op is issued against the server but the local afs inode isn't
torn down and disposed off before another thread issues something like
FS.CreateFile. The latter then gets given the vnode ID that just got
removed, but with a new uniquifier and a cookie collision occurs in the
cache because the cookie is only keyed on the vnode ID whereas the inode is
keyed on the vnode ID plus the uniquifier.
Fix this by keying the cookie on the uniquifier in addition to the vnode ID
and dropping the uniquifier from the auxiliary data supplied.
Signed-off-by: David Howells <dhowells@redhat.com>
Invalidate any data stored in fscache for a vnode that changes on the
server so that we don't end up with the cache in a bad state locally.
Signed-off-by: David Howells <dhowells@redhat.com>
Must retrieve size before running filemap_fault so the kernel has
an up-to-date size.
This should have been caught by xfstests generic/246, but it was masked
by orangefs_new_inode, which set i_size to PAGE_SIZE. When nothing
caused a getattr prior to a pagefault, i_size was still PAGE_SIZE.
Since xfstests only read 10 bytes, it did not catch this bug.
When orangefs_new_inode was modified to perform a getattr instead,
i_size was set to zero, as it was a newly created file. Then
orangefs_file_write_iter did NOT set i_size. Instead it invalidated the
attribute cache, which should have caused the next caller to retrieve
i_size. But the fault handler did not know it was supposed to retrieve
i_size. So during xfstests, i_size was still zero, and filemap_fault
returned VM_FAULT_SIGBUS.
Fixes xfstests generic/452.
Signed-off-by: Martin Brandenburg <martin@omnibond.com>
Signed-off-by: Mike Marshall <hubcap@omnibond.com>
