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Merge tag 'for_v4.18-rc2' of git://git.kernel.org/pub/scm/linux/kernel/git/jack/linux-fs
Pull udf, quota, ext2 fixes from Jan Kara:
"UDF:
- fix an oops due to corrupted disk image
- two small cleanups
quota:
- a fixfor lru handling
- cleanup
ext2:
- a warning about a deprecated mount option"
* tag 'for_v4.18-rc2' of git://git.kernel.org/pub/scm/linux/kernel/git/jack/linux-fs:
udf: Drop unused arguments of udf_delete_aext()
udf: Provide function for calculating dir entry length
udf: Detect incorrect directory size
ext2: add warning when specifying nocheck option
quota: Cleanup list iteration in dqcache_shrink_scan()
quota: reclaim least recently used dquots
Hightlights include:
Bugfixes:
- Fix an rcu deadlock in nfs_delegation_find_inode()
- Fix NFSv4 deadlocks due to not freeing the session slot in layoutget
- Don't send layoutreturn if the layout is already invalid
- Prevent duplicate XID allocation
- flexfiles: Don't tie up all the rpciod threads in resends
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Merge tag 'nfs-for-4.18-2' of git://git.linux-nfs.org/projects/trondmy/linux-nfs
Pull NFS client bugfixes from Trond Myklebust:
"Hightlights include:
- fix an rcu deadlock in nfs_delegation_find_inode()
- fix NFSv4 deadlocks due to not freeing the session slot in
layoutget
- don't send layoutreturn if the layout is already invalid
- prevent duplicate XID allocation
- flexfiles: Don't tie up all the rpciod threads in resends"
* tag 'nfs-for-4.18-2' of git://git.linux-nfs.org/projects/trondmy/linux-nfs:
pNFS/flexfiles: Process writeback resends from nfsiod context as well
pNFS/flexfiles: Don't tie up all the rpciod threads in resends
sunrpc: Prevent duplicate XID allocation
pNFS: Don't send layoutreturn if the layout is already invalid
pNFS: Always free the session slot on error in nfs4_layoutget_handle_exception
NFS: Fix an rcu deadlock in nfs_delegation_find_inode()
Detect when a directory entry is (possibly partially) beyond directory
size and return EIO in that case since it means the filesystem is
corrupted. Otherwise directory operations can further corrupt the
directory and possibly also oops the kernel.
CC: Anatoly Trosinenko <anatoly.trosinenko@gmail.com>
CC: stable@vger.kernel.org
Reported-and-tested-by: Anatoly Trosinenko <anatoly.trosinenko@gmail.com>
Signed-off-by: Jan Kara <jack@suse.cz>
The option nocheck(nocheck/check=none) is useless but considering
backwards compatibility it's better to print warning for a while
before completely remove from the code.
This patch add proper warning message for option 'nocheck' and
remove unnecessary comment/function declaration which is used for
removed option 'check'.
Signed-off-by: Chengguang Xu <cgxu519@gmx.com>
Signed-off-by: Jan Kara <jack@suse.cz>
Use list_first_entry() and list_empty() instead of opencoded variants.
Reviewed-by: Matthew Wilcox <mawilcox@microsoft.com>
Signed-off-by: Jan Kara <jack@suse.cz>
The dquots in the free_dquots list are not reclaimed in LRU way.
put_dquot_last() puts entries to the tail and dqcache_shrink_scan()
frees from the tail. Free unreferenced dquots in LRU order because it
seems more reasonable than freeing most recently used.
Signed-off-by: Greg Thelen <gthelen@google.com>
Signed-off-by: Shakeel Butt <shakeelb@google.com>
Signed-off-by: Jan Kara <jack@suse.cz>
The rewrite of the cmdline fetching missed the fact that we used to also
return the final terminating NUL character of the last argument. I
hadn't noticed, and none of the tools I tested cared, but something
obviously must care, because Michal Kubecek noticed the change in
behavior.
Tweak the "find the end" logic to actually include the NUL character,
and once past the eend of argv, always start the strnlen() at the
expected (original) argument end.
This whole "allow people to rewrite their arguments in place" is a nasty
hack and requires that odd slop handling at the end of the argv array,
but it's our traditional model, so we continue to support it.
Repored-and-bisected-by: Michal Kubecek <mkubecek@suse.cz>
Reviewed-and-tested-by: Michal Kubecek <mkubecek@suse.cz>
Cc: Alexey Dobriyan <adobriyan@gmail.com>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Although the writeback resends are more robust than the reads, since they
are not immediately rescheduled by the same thread, we are better off
processing them in the same place as the reads.
Signed-off-by: Trond Myklebust <trond.myklebust@hammerspace.com>
We do not want to have rpciod threads perform recursive calls into the
RPC layer since that can deadlock. In particular, having to wait for
a layoutget can be nasty... We want rather to defer scheduling those
retries until we're in the rpc_release() callback, since that is
called from the nfsiod workqueue.
Signed-off-by: Trond Myklebust <trond.myklebust@hammerspace.com>
If the layout was invalidated due to a reboot, then don't try to send
a layoutreturn for it.
Signed-off-by: Trond Myklebust <trond.myklebust@hammerspace.com>
Right now, we can call nfs_commit_inode() while holding the session slot,
which could lead to NFSv4 deadlocks. Ensure we only keep the slot if
the server returned a layout that we have to process.
Signed-off-by: Trond Myklebust <trond.myklebust@hammerspace.com>
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Merge tag 'jfs-4.18' of git://github.com/kleikamp/linux-shaggy
Pull jfs fix from Dave Kleikamp:
"This fixes a too-small allocation in the xattr code"
* tag 'jfs-4.18' of git://github.com/kleikamp/linux-shaggy:
jfs: Fix inconsistency between memory allocation and ea_buf->max_size
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Merge tag '4.18-rc1-more-smb3-fixes' of git://git.samba.org/sfrench/cifs-2.6
Pull cifs fixes from Steve French:
"Misc SMB3 fixes, including particularly important ones for signing,
some minor documentation and debug improvements and another posix
smb3.11 fix"
* tag '4.18-rc1-more-smb3-fixes' of git://git.samba.org/sfrench/cifs-2.6:
cifs: Fix invalid check in __cifs_calc_signature()
cifs: Use correct packet length in SMB2_TRANSFORM header
smb3: fix corrupt path in subdirs on smb311 with posix
smb3: do not display empty interface list
smb3: Fix mode on mkdir on smb311 mounts
cifs: Fix kernel oops when traceSMB is enabled
CIFS: dump every session iface info
CIFS: parse and store info on iface queries
CIFS: add iface info to struct cifs_ses
CIFS: complete PDU definitions for interface queries
CIFS: move default port definitions to cifsglob.h
cifs: Fix encryption/signing
cifs: update __smb_send_rqst() to take an array of requests
cifs: remove smb2_send_recv()
cifs: push rfc1002 generation down the stack
smb3: increase initial number of credits requested to allow write
cifs: minor documentation updates
cifs: add lease tracking to the cached root fid
smb3: note that smb3.11 posix extensions mount option is experimental
- can.rst: fix a footnote reference;
- crypto_engine.rst: Fix two parsing warnings;
- Fix a lot of broken references to Documentation/*;
- Improves the scripts/documentation-file-ref-check script,
in order to help detecting/fixing broken references,
preventing false-positives.
After this patch series, only 33 broken references to doc files are
detected by scripts/documentation-file-ref-check.
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Merge tag 'docs-broken-links' of git://linuxtv.org/mchehab/experimental
Pull documentation fixes from Mauro Carvalho Chehab:
"This solves a series of broken links for files under Documentation,
and improves a script meant to detect such broken links (see
scripts/documentation-file-ref-check).
The changes on this series are:
- can.rst: fix a footnote reference;
- crypto_engine.rst: Fix two parsing warnings;
- Fix a lot of broken references to Documentation/*;
- improve the scripts/documentation-file-ref-check script, in order
to help detecting/fixing broken references, preventing
false-positives.
After this patch series, only 33 broken references to doc files are
detected by scripts/documentation-file-ref-check"
* tag 'docs-broken-links' of git://linuxtv.org/mchehab/experimental: (26 commits)
fix a series of Documentation/ broken file name references
Documentation: rstFlatTable.py: fix a broken reference
ABI: sysfs-devices-system-cpu: remove a broken reference
devicetree: fix a series of wrong file references
devicetree: fix name of pinctrl-bindings.txt
devicetree: fix some bindings file names
MAINTAINERS: fix location of DT npcm files
MAINTAINERS: fix location of some display DT bindings
kernel-parameters.txt: fix pointers to sound parameters
bindings: nvmem/zii: Fix location of nvmem.txt
docs: Fix more broken references
scripts/documentation-file-ref-check: check tools/*/Documentation
scripts/documentation-file-ref-check: get rid of false-positives
scripts/documentation-file-ref-check: hint: dash or underline
scripts/documentation-file-ref-check: add a fix logic for DT
scripts/documentation-file-ref-check: accept more wildcards at filenames
scripts/documentation-file-ref-check: fix help message
media: max2175: fix location of driver's companion documentation
media: v4l: fix broken video4linux docs locations
media: dvb: point to the location of the old README.dvb-usb file
...
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Merge tag 'fsnotify_for_v4.18-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/jack/linux-fs
Pull fsnotify updates from Jan Kara:
"fsnotify cleanups unifying handling of different watch types.
This is the shortened fsnotify series from Amir with the last five
patches pulled out. Amir has modified those patches to not change
struct inode but obviously it's too late for those to go into this
merge window"
* tag 'fsnotify_for_v4.18-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/jack/linux-fs:
fsnotify: add fsnotify_add_inode_mark() wrappers
fanotify: generalize fanotify_should_send_event()
fsnotify: generalize send_to_group()
fsnotify: generalize iteration of marks by object type
fsnotify: introduce marks iteration helpers
fsnotify: remove redundant arguments to handle_event()
fsnotify: use type id to identify connector object type
Pull AFS updates from Al Viro:
"Assorted AFS stuff - ended up in vfs.git since most of that consists
of David's AFS-related followups to Christoph's procfs series"
* 'afs-proc' of git://git.kernel.org/pub/scm/linux/kernel/git/viro/vfs:
afs: Optimise callback breaking by not repeating volume lookup
afs: Display manually added cells in dynamic root mount
afs: Enable IPv6 DNS lookups
afs: Show all of a server's addresses in /proc/fs/afs/servers
afs: Handle CONFIG_PROC_FS=n
proc: Make inline name size calculation automatic
afs: Implement network namespacing
afs: Mark afs_net::ws_cell as __rcu and set using rcu functions
afs: Fix a Sparse warning in xdr_decode_AFSFetchStatus()
proc: Add a way to make network proc files writable
afs: Rearrange fs/afs/proc.c to remove remaining predeclarations.
afs: Rearrange fs/afs/proc.c to move the show routines up
afs: Rearrange fs/afs/proc.c by moving fops and open functions down
afs: Move /proc management functions to the end of the file
Pull compat updates from Al Viro:
"Some biarch patches - getting rid of assorted (mis)uses of
compat_alloc_user_space().
Not much in that area this cycle..."
* 'work.compat' of git://git.kernel.org/pub/scm/linux/kernel/git/viro/vfs:
orangefs: simplify compat ioctl handling
signalfd: lift sigmask copyin and size checks to callers of do_signalfd4()
vmsplice(): lift importing iovec into vmsplice(2) and compat counterpart
Pull aio fixes from Al Viro:
"Assorted AIO followups and fixes"
* 'work.aio' of git://git.kernel.org/pub/scm/linux/kernel/git/viro/vfs:
eventpoll: switch to ->poll_mask
aio: only return events requested in poll_mask() for IOCB_CMD_POLL
eventfd: only return events requested in poll_mask()
aio: mark __aio_sigset::sigmask const
The following check would never evaluate to true:
> if (i == 0 && iov[0].iov_len <= 4)
Because 'i' always starts at 1.
This patch fixes it and also move the header checks outside the for loop
- which makes more sense.
Signed-off-by: Paulo Alcantara <palcantara@suse.de>
Signed-off-by: Steve French <stfrench@microsoft.com>
In smb3_init_transform_rq(), 'orig_len' was only counting the request
length, but forgot to count any data pages in the request.
Writing or creating files with the 'seal' mount option was broken.
In addition, do some code refactoring by exporting smb2_rqst_len() to
calculate the appropriate packet size and avoid duplicating the same
calculation all over the code.
The start of the io vector is either the rfc1002 length (4 bytes) or a
SMB2 header which is always > 4. Use this fact to check and skip the
rfc1002 length if requested.
Signed-off-by: Paulo Alcantara <palcantara@suse.de>
Reviewed-by: Aurelien Aptel <aaptel@suse.com>
Signed-off-by: Steve French <stfrench@microsoft.com>
As files move around, their previous links break. Fix the
references for them.
Acked-by: Andy Shevchenko <andy.shevchenko@gmail.com>
Signed-off-by: Mauro Carvalho Chehab <mchehab+samsung@kernel.org>
Acked-by: Jonathan Corbet <corbet@lwn.net>
As we move stuff around, some doc references are broken. Fix some of
them via this script:
./scripts/documentation-file-ref-check --fix
Manually checked that produced results are valid.
Acked-by: Matthias Brugger <matthias.bgg@gmail.com>
Acked-by: Takashi Iwai <tiwai@suse.de>
Acked-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
Acked-by: Guenter Roeck <linux@roeck-us.net>
Acked-by: Miguel Ojeda <miguel.ojeda.sandonis@gmail.com>
Signed-off-by: Mauro Carvalho Chehab <mchehab+samsung@kernel.org>
Acked-by: Jonathan Corbet <corbet@lwn.net>
At the moment, afs_break_callbacks calls afs_break_one_callback() for each
separate FID it was given, and the latter looks up the volume individually
for each one.
However, this is inefficient if two or more FIDs have the same vid as we
could reuse the volume. This is complicated by cell aliasing whereby we
may have multiple cells sharing a volume and can therefore have multiple
callback interests for any particular volume ID.
At the moment afs_break_one_callback() scans the entire list of volumes
we're getting from a server and breaks the appropriate callback in every
matching volume, regardless of cell. This scan is done for every FID.
Optimise callback breaking by the following means:
(1) Sort the FID list by vid so that all FIDs belonging to the same volume
are clumped together.
This is done through the use of an indirection table as we cannot do
an insertion sort on the afs_callback_break array as we decode FIDs
into it as we subsequently also have to decode callback info into it
that corresponds by array index only.
We also don't really want to bubblesort afterwards if we can avoid it.
(2) Sort the server->cb_interests array by vid so that all the matching
volumes are grouped together. This permits the scan to stop after
finding a record that has a higher vid.
(3) When breaking FIDs, we try to keep server->cb_break_lock as long as
possible, caching the start point in the array for that volume group
as long as possible.
It might make sense to add another layer in that list and have a
refcounted volume ID anchor that has the matching interests attached
to it rather than being in the list. This would allow the lock to be
dropped without losing the cursor.
Signed-off-by: David Howells <dhowells@redhat.com>
Alter the dynroot mount so that cells created by manipulation of
/proc/fs/afs/cells and /proc/fs/afs/rootcell and by specification of a root
cell as a module parameter will cause directories for those cells to be
created in the dynamic root superblock for the network namespace[*].
To this end:
(1) Only one dynamic root superblock is now created per network namespace
and this is shared between all attempts to mount it. This makes it
easier to find the superblock to modify.
(2) When a dynamic root superblock is created, the list of cells is walked
and directories created for each cell already defined.
(3) When a new cell is added, if a dynamic root superblock exists, a
directory is created for it.
(4) When a cell is destroyed, the directory is removed.
(5) These directories are created by calling lookup_one_len() on the root
dir which automatically creates them if they don't exist.
[*] Inasmuch as network namespaces are currently supported here.
Signed-off-by: David Howells <dhowells@redhat.com>
If server does not support listing interfaces then do not
display empty "Server interfaces" line to avoid confusing users.
Signed-off-by: Steve French <stfrench@microsoft.com>
CC: Aurelien Aptel <aaptel@suse.com>
Since the rfc1002 generation was moved down to __smb_send_rqst(),
the transform header is now in rqst->rq_iov[0].
Correctly assign the transform header pointer in crypt_message().
Signed-off-by: Paulo Alcantara <palcantara@suse.de>
Reviewed-by: Ronnie Sahlberg <lsahlber@redhat.com>
Signed-off-by: Steve French <stfrench@microsoft.com>
Now that we have the plumbing to pass request without an rfc1002
header all the way down to the point we write to the socket we no
longer need the smb2_send_recv() function.
Signed-off-by: Ronnie Sahlberg <lsahlber@redhat.com>
Signed-off-by: Steve French <smfrench@gmail.com>
Move the generation of the 4 byte length field down the stack and
generate it immediately before we start writing the data to the socket.
Signed-off-by: Ronnie Sahlberg <lsahlber@redhat.com>
Signed-off-by: Aurelien Aptel <aaptel@suse.com>
Signed-off-by: Steve French <smfrench@gmail.com>
Compared to other clients the Linux smb3 client ramps up
credits very slowly, taking more than 128 operations before a
maximum size write could be sent (since the number of credits
requested is only 2 per small operation, causing the credit
limit to grow very slowly).
This lack of credits initially would impact large i/o performance,
when large i/o is tried early before enough credits are built up.
Signed-off-by: Steve French <stfrench@gmail.com>
Reviewed-by: Ronnie Sahlberg <lsahlber@redhat.com>
Use a read lease for the cached root fid so that we can detect
when the content of the directory changes (via a break) at which time
we close the handle. On next access to the root the handle will be reopened
and cached again.
Signed-off-by: Ronnie Sahlberg <lsahlber@redhat.com>
Signed-off-by: Steve French <stfrench@microsoft.com>
Show all of a server's addresses in /proc/fs/afs/servers, placing the
second plus addresses on padded lines of their own. The current address is
marked with a star.
Signed-off-by: David Howells <dhowells@redhat.com>
The AFS filesystem depends at the moment on /proc for configuration and
also presents information that way - however, this causes a compilation
failure if procfs is disabled.
Fix it so that the procfs bits aren't compiled in if procfs is disabled.
This means that you can't configure the AFS filesystem directly, but it is
still usable provided that an up-to-date keyutils is installed to look up
cells by SRV or AFSDB DNS records.
Reported-by: Al Viro <viro@ZenIV.linux.org.uk>
Signed-off-by: David Howells <dhowells@redhat.com>
Make calculation of the size of the inline name in struct proc_dir_entry
automatic, rather than having to manually encode the numbers and failing to
allow for lockdep.
Require a minimum inline name size of 33+1 to allow for names that look
like two hex numbers with a dash between.
Reported-by: Al Viro <viro@ZenIV.linux.org.uk>
Signed-off-by: David Howells <dhowells@redhat.com>
Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
The ->poll_mask() operation has a mask of events that the caller
is interested in, but not all implementations might take it into
account. Mask the return value to only the requested events,
similar to what the poll and epoll code does.
Reported-by: Avi Kivity <avi@scylladb.com>
Signed-off-by: Christoph Hellwig <hch@lst.de>
Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
