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git://git.kernel.org/pub/scm/linux/kernel/git/jack/linux-fs
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
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Remove Variable Length Array from fs/reiserfs/reiserfs.h. EMPTY_DIR_SIZE
is used as an array size and as it is using strlen() it need not be
evaluated at compile time. Change it's definition to use sizeof() to
force evaluation of array length at compile time.
Signed-off-by: Kyle Spiers <kyle@spiers.me>
Signed-off-by: Jan Kara <jack@suse.cz>
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When specifiying iocharset multiple times in a mount or once/multiple in
a remount, current option parsing may cause inaccurate refcount of nls
module. Also, in the failure cleanup of option parsing, the condition
of calling unload_nls is not sufficient.
Signed-off-by: Chengguang Xu <cgxu519@icloud.com>
Signed-off-by: Jan Kara <jack@suse.cz>
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Change return code to -ENOMEM from -EINVAL when failing memory
allocation in fill_super(), meanwhile delete redundant initial
assignment of variable err.
Signed-off-by: Chengguang Xu <cgxu519@icloud.com>
Signed-off-by: Jan Kara <jack@suse.cz>
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If logical volume integrity descriptor contains non-closed integrity
type when mounting the volume, there are high chances that the volume is
not consistent (device was detached before the filesystem was
unmounted). Don't touch integrity type of such volume so that fsck can
recognize it and check such filesystem.
Reported-by: Pali Rohár <pali.rohar@gmail.com>
Reviewed-by: Pali Rohár <pali.rohar@gmail.com>
Signed-off-by: Jan Kara <jack@suse.cz>
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Currently if notification event is lost due to event allocation failing
we ENOMEM, we just silently continue (except for fanotify permission
events where we deny the access). This is undesirable as userspace has
no way of knowing whether the notifications it got are complete or not.
Treat lost events due to ENOMEM the same way as lost events due to queue
overflow so that userspace knows something bad happened and it likely
needs to rescan the filesystem.
Reviewed-by: Amir Goldstein <amir73il@gmail.com>
Signed-off-by: Jan Kara <jack@suse.cz>
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Fanotify queues of unlimited length do not expect events can be lost.
Since these queues are used for system auditing and other security
related tasks, loosing events can even have security implications.
Currently, since the allocation is small (32-bytes), it cannot fail
however when we start accounting events in memcgs, allocation can start
failing. So avoid loosing events due to failure to allocate memory by
making event allocation use __GFP_NOFAIL.
Reviewed-by: Amir Goldstein <amir73il@gmail.com>
Signed-off-by: Jan Kara <jack@suse.cz>
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Signed-off-by: Jan Kara <jack@suse.cz>
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Currently when UDF filesystem is recorded without uid / gid (ids are set
to -1), we will assign INVALID_[UG]ID to vfs inode unless user uses uid=
and gid= mount options. In such case filesystem could not be modified in
any way as VFS refuses to modify files with invalid ids (even by root).
This is confusing to users and not very useful default since such media
mode is generally used for removable media. Use overflow[ug]id instead
so that at least root can modify the filesystem.
Reported-by: Steve Kenton <skenton@ou.edu>
Reviewed-by: Pali Rohár <pali.rohar@gmail.com>
Signed-off-by: Jan Kara <jack@suse.cz>
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Current code relies on the fact that invalid uid/gid as defined by UDF
2.60 3.3.3.1 and 3.3.3.2 coincides with invalid uid/gid as used by the
user namespaces implementation. Since this is only lucky coincidence,
clean this up to avoid future surprises in case user namespaces
implementation changes. Also this is more robust in presence of valid
(from UDF point of view) uids / gids which do not map into current user
namespace.
Reviewed-by: Pali Rohár <pali.rohar@gmail.com>
Signed-off-by: Jan Kara <jack@suse.cz>
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Currently newly created files belong to current user despite
uid=<number> / gid=<number> mount options. This is confusing to users
(as owner of the file will change after remount / eviction from cache)
and also inconsistent with e.g. FAT with the same mount option. So apply
uid=<number> and gid=<number> also to newly created inodes and similarly
as FAT disallow to change owner of the file in this case.
Reported-by: Steve Kenton <skenton@ou.edu>
Reviewed-by: Pali Rohár <pali.rohar@gmail.com>
Signed-off-by: Jan Kara <jack@suse.cz>
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Currently uid=ignore and gid=ignore make no sense without uid=<number>
and gid=<number> respectively as they result in all files having invalid
uid / gid which then doesn't allow even root to modify files and thus
causes confusion. And since commit ca76d2d8031f "UDF: fix UID and GID
mount option ignorance" (from over 10 years ago) uid=<number> overrides
all uids on disk as uid=ignore does. So just silently ignore uid=ignore
mount option.
Reviewed-by: Pali Rohár <pali.rohar@gmail.com>
Signed-off-by: Jan Kara <jack@suse.cz>
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Current handling of Partition Descriptors in Volume Descriptor Sequence
is buggy in several ways. Firstly, it does not take descriptor sequence
numbers into account at all, thus any volume making serious use of them
would be unmountable. Secondly, it does not handle Volume Descriptor
Pointers or Volume Descriptor Sequence without Terminating Descriptor.
Fix these problems by properly remembering all Partition Descriptors in
the Volume Descriptor Sequence and their sequence numbers. This is made
more complicated by the fact that we don't know number of partitions in
advance and sequence numbers have to be tracked on per-partition basis.
Reported-by: Pali Rohár <pali.rohar@gmail.com>
Acked-by: Pali Rohár <pali.rohar@gmail.com>
Signed-off-by: Jan Kara <jack@suse.cz>
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When scanning Volume Descriptor Sequence, several descriptors have
exactly the same handling. Unify it.
Acked-by: Pali Rohár <pali.rohar@gmail.com>
Signed-off-by: Jan Kara <jack@suse.cz>
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Convert index definitions from defines to enum. It is a shorter
description and easier to modify. Also remove VDS_POS_VOL_DESC_PTR since
it is unused.
Acked-by: Pali Rohár <pali.rohar@gmail.com>
Signed-off-by: Jan Kara <jack@suse.cz>
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According to ECMA-167 3/8.4.2 a volume descriptor sequence can be
terminated also by an unrecorded block within the extent of volume
descriptor sequence. Currently we errored out in such case making such
volumes unmountable. Handle that case by treating any invalid block as a
block terminating the sequence.
Reported-by: Pali Rohár <pali.rohar@gmail.com>
Acked-by: Pali Rohár <pali.rohar@gmail.com>
Signed-off-by: Jan Kara <jack@suse.cz>
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According to ECMA-167 3/8.4.2 Volume Descriptor Pointer is terminating
current extent of Volume Descriptor Sequence. Also according to ECMA-167
3/8.4.3 Volume Descriptor Sequence Number is not significant for Volume
Descriptor Pointers. Simplify the handling of Volume Descriptor Pointers
to take this into account.
Acked-by: Pali Rohár <pali.rohar@gmail.com>
Signed-off-by: Jan Kara <jack@suse.cz>
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We pass one block beyond end of volume descriptor sequence into
process_sequence() as 'lastblock' instead of the last block of the
sequence. When the sequence is not terminated with TD descriptor, this
could lead to false errors due to invalid blocks in volume descriptor
sequence and thus unmountable volumes.
Acked-by: Pali Rohár <pali.rohar@gmail.com>
Signed-off-by: Jan Kara <jack@suse.cz>
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Watch descriptor is id of the watch created by inotify_add_watch().
It is allocated in inotify_add_to_idr(), and takes the numbers
starting from 1. Every new inotify watch obtains next available
number (usually, old + 1), as served by idr_alloc_cyclic().
CRIU (Checkpoint/Restore In Userspace) project supports inotify
files, and restores watched descriptors with the same numbers,
they had before dump. Since there was no kernel support, we
had to use cycle to add a watch with specific descriptor id:
while (1) {
int wd;
wd = inotify_add_watch(inotify_fd, path, mask);
if (wd < 0) {
break;
} else if (wd == desired_wd_id) {
ret = 0;
break;
}
inotify_rm_watch(inotify_fd, wd);
}
(You may find the actual code at the below link:
https://github.com/checkpoint-restore/criu/blob/v3.7/criu/fsnotify.c#L577)
The cycle is suboptiomal and very expensive, but since there is no better
kernel support, it was the only way to restore that. Happily, we had met
mostly descriptors with small id, and this approach had worked somehow.
But recent time containers with inotify with big watch descriptors
begun to come, and this way stopped to work at all. When descriptor id
is something about 0x34d71d6, the restoring process spins in busy loop
for a long time, and the restore hungs and delay of migration from node
to node could easily be watched.
This patch aims to solve this problem. It introduces new ioctl
INOTIFY_IOC_SETNEXTWD, which allows to request the number of next created
watch descriptor from userspace. It simply calls idr_set_cursor() primitive
to populate idr::idr_next, so that next idr_alloc_cyclic() allocation
will return this id, if it is not occupied. This is the way which is
used to restore some other resources from userspace. For example,
/proc/sys/kernel/ns_last_pid works the same for task pids.
The new code is under CONFIG_CHECKPOINT_RESTORE #define, so small system
may exclude it.
v2: Use INT_MAX instead of custom definition of max id,
as IDR subsystem guarantees id is between 0 and INT_MAX.
CC: Jan Kara <jack@suse.cz>
CC: Matthew Wilcox <willy@infradead.org>
CC: Andrew Morton <akpm@linux-foundation.org>
CC: Amir Goldstein <amir73il@gmail.com>
Signed-off-by: Kirill Tkhai <ktkhai@virtuozzo.com>
Reviewed-by: Cyrill Gorcunov <gorcunov@openvz.org>
Reviewed-by: Matthew Wilcox <mawilcox@microsoft.com>
Reviewed-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Jan Kara <jack@suse.cz>
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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
...
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We're neglecting to clear the umask after it's set, which can cause a
later unrelated rpc to (incorrectly) use the same umask if it happens to
be processed by the same thread.
There's a more subtle problem here too:
An NFSv4 compound request is decoded all in one pass before any
operations are executed.
Currently we're setting current->fs->umask at the time we decode the
compound. In theory a single compound could contain multiple creates
each setting a umask. In that case we'd end up using whichever umask
was passed in the *last* operation as the umask for all the creates,
whether that was correct or not.
So, we should just be saving the umask at decode time and waiting to set
it until we actually process the corresponding operation.
In practice it's unlikely any client would do multiple creates in a
single compound. And even if it did they'd likely be from the same
process (hence carry the same umask). So this is a little academic, but
we should get it right anyway.
Fixes: 47057abde515 (nfsd: add support for the umask attribute)
Cc: stable@vger.kernel.org
Reported-by: Lucash Stach <l.stach@pengutronix.de>
Signed-off-by: J. Bruce Fields <bfields@redhat.com>
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Move common code in NFSD's legacy SYMLINK decoders into a helper.
The immediate benefits include:
- one fewer data copies on transports that support DDP
- consistent error checking across all versions
- reduction of code duplication
- support for both legal forms of SYMLINK requests on RDMA
transports for all versions of NFS (in particular, NFSv2, for
completeness)
In the long term, this helper is an appropriate spot to perform a
per-transport call-out to fill the pathname argument using, say,
RDMA Reads.
Filling the pathname in the proc function also means that eventually
the incoming filehandle can be interpreted so that filesystem-
specific memory can be allocated as a sink for the pathname
argument, rather than using anonymous pages.
Signed-off-by: Chuck Lever <chuck.lever@oracle.com>
Signed-off-by: J. Bruce Fields <bfields@redhat.com>
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Move common code in NFSD's legacy NFS WRITE decoders into a helper.
The immediate benefit is reduction of code duplication and some nice
micro-optimizations (see below).
In the long term, this helper can perform a per-transport call-out
to fill the rq_vec (say, using RDMA Reads).
The legacy WRITE decoders and procs are changed to work like NFSv4,
which constructs the rq_vec just before it is about to call
vfs_writev.
Why? Calling a transport call-out from the proc instead of the XDR
decoder means that the incoming FH can be resolved to a particular
filesystem and file. This would allow pages from the backing file to
be presented to the transport to be filled, rather than presenting
anonymous pages and copying or flipping them into the file's page
cache later.
I also prefer using the pages in rq_arg.pages, instead of pulling
the data pages directly out of the rqstp::rq_pages array. This is
currently the way the NFSv3 write decoder works, but the other two
do not seem to take this approach. Fixing this removes the only
reference to rq_pages found in NFSD, eliminating an NFSD assumption
about how transports use the pages in rq_pages.
Lastly, avoid setting up the first element of rq_vec as a zero-
length buffer. This happens with an RDMA transport when a normal
Read chunk is present because the data payload is in rq_arg's
page list (none of it is in the head buffer).
Signed-off-by: Chuck Lever <chuck.lever@oracle.com>
Signed-off-by: J. Bruce Fields <bfields@redhat.com>
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This helps record the identity and timing of the ops in each NFSv4
COMPOUND, replacing dprintk calls that did much the same thing.
Signed-off-by: Chuck Lever <chuck.lever@oracle.com>
Signed-off-by: J. Bruce Fields <bfields@redhat.com>
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NFSv4 read compound processing invokes nfsd_splice_read and
nfs_readv directly, so the trace points currently in nfsd_read are
not invoked for NFSv4 reads.
Move the NFSD READ trace points to common helpers so that NFSv4
reads are captured.
Also, record any local I/O error that occurs, the total count of
bytes that were actually returned, and whether splice or vectored
read was used.
Signed-off-by: Chuck Lever <chuck.lever@oracle.com>
Signed-off-by: J. Bruce Fields <bfields@redhat.com>
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NFSv4 write compound processing invokes nfsd_vfs_write directly. The
trace points currently in nfsd_write are not effective for NFSv4
writes.
Move the trace points into the shared nfsd_vfs_write() helper.
After the I/O, we also want to record any local I/O error that
might have occurred, and the total count of bytes that were actually
moved (rather than the requested number).
Signed-off-by: Chuck Lever <chuck.lever@oracle.com>
Signed-off-by: J. Bruce Fields <bfields@redhat.com>
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Follow naming convention used in client and in sunrpc layers.
Signed-off-by: Chuck Lever <chuck.lever@oracle.com>
Signed-off-by: J. Bruce Fields <bfields@redhat.com>
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Byte count is more helpful to know than vector count.
Signed-off-by: Chuck Lever <chuck.lever@oracle.com>
Signed-off-by: J. Bruce Fields <bfields@redhat.com>
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nfsd-1915 [003] 77915.780959: write_opened:
[FAILED TO PARSE] xid=3286130958 fh=0 offset=154624 len=1
nfsd-1915 [003] 77915.780960: write_io_done:
[FAILED TO PARSE] xid=3286130958 fh=0 offset=154624 len=1
nfsd-1915 [003] 77915.780964: write_done:
[FAILED TO PARSE] xid=3286130958 fh=0 offset=154624 len=1
Byte swapping and knfsd_fh_hash() are not available in "trace-cmd
report", where the print format string is actually used. These
data transformations have to be done during the TP_fast_assign step.
Signed-off-by: Chuck Lever <chuck.lever@oracle.com>
Signed-off-by: J. Bruce Fields <bfields@redhat.com>
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Use enum nfs_cb_opnum4 in decode_cb_op_status. This fixes warnings
seen with clang:
fs/nfsd/nfs4callback.c:451:36: warning: implicit conversion from
enumeration type 'enum nfs_cb_opnum4' to different enumeration
type 'enum nfs_opnum4' [-Wenum-conversion]
status = decode_cb_op_status(xdr, OP_CB_SEQUENCE, &cb->cb_seq_status);
~~~~~~~~~~~~~~~~~~~ ^~~~~~~~~~~~~~
Signed-off-by: Stefan Agner <stefan@agner.ch>
Signed-off-by: J. Bruce Fields <bfields@redhat.com>
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fs/nfsd/nfs4state.c:926:8-9: WARNING: return of 0/1 in function 'nfs4_delegation_exists' with return type bool
fs/nfsd/nfs4state.c:2955:9-10: WARNING: return of 0/1 in function 'nfsd4_compound_in_session' with return type bool
Return statements in functions returning bool should use
true/false instead of 1/0.
Generated by: scripts/coccinelle/misc/boolreturn.cocci
Fixes: 68b18f52947b ("nfsd: make nfs4_get_existing_delegation less confusing")
Signed-off-by: Fengguang Wu <fengguang.wu@intel.com>
Reported-by: Dan Carpenter <dan.carpenter@oracle.com>
[bfields: also fix -EAGAIN]
Signed-off-by: J. Bruce Fields <bfields@redhat.com>
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Currently we only take one vfs-level delegation (lease) for each file,
no matter how many clients hold delegations on that file.
Let's instead keep a one-to-one mapping between NFSv4 delegations and
VFS delegations. This turns out to be simpler.
There is still a many-to-one mapping of NFS opens to NFS files, and the
delegations on one file are all associated with one struct file. The
VFS can still distinguish between these delegations since we're setting
fl_owner to the struct nfs4_delegation now, not to the shared file.
I'm replacing at least one complicated function wholesale, which I don't
like to do, but I haven't figured out how to do this more incrementally.
Signed-off-by: J. Bruce Fields <bfields@redhat.com>
Reviewed-by: Jeff Layton <jlayton@kernel.org>
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Take an easy chance to simplify the caller a little.
Signed-off-by: J. Bruce Fields <bfields@redhat.com>
Reviewed-by: Jeff Layton <jlayton@kernel.org>
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Pull some duplicated code into a common helper.
This changes the order in destroy_delegation a little, but it looks to
me like that shouldn't matter.
Signed-off-by: J. Bruce Fields <bfields@redhat.com>
Reviewed-by: Jeff Layton <jlayton@kernel.org>
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This doesn't "get" anything.
Signed-off-by: J. Bruce Fields <bfields@redhat.com>
Reviewed-by: Jeff Layton <jlayton@kernel.org>
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The delegation isn't visible to anyone yet.
Signed-off-by: J. Bruce Fields <bfields@redhat.com>
Reviewed-by: Jeff Layton <jlayton@kernel.org>
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For now this makes no difference, as for files having delegations,
there's a one-to-one relationship between an nfs4_file and its
nfs4_delegation.
Signed-off-by: J. Bruce Fields <bfields@redhat.com>
Reviewed-by: Jeff Layton <jlayton@kernel.org>
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Every single caller gets the file out of the delegation, so let's do
that once in nfs4_put_deleg_lease.
Plus we'll need it there for other reasons.
Signed-off-by: J. Bruce Fields <bfields@redhat.com>
Reviewed-by: Jeff Layton <jlayton@kernel.org>
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fi_delegees is basically just a reference count on users of
fi_deleg_file, which is cleared when fi_delegees goes to zero. The
fi_deleg_file check here is redundant. Also add an assertion to make
sure we don't have unbalanced puts.
Signed-off-by: J. Bruce Fields <bfields@redhat.com>
Reviewed-by: Jeff Layton <jlayton@kernel.org>
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On x86_64, it's 1152 bytes, so we can avoid wasting 896 bytes each.
Signed-off-by: Jeff Layton <jlayton@redhat.com>
Signed-off-by: J. Bruce Fields <bfields@redhat.com>
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In a traditional NFS deployment using auth_unix, the clients are trusted
to correctly report the credentials of their logged-in users. The
server assumes that only root on client machines is allowed to send
requests from low-numbered ports, so it can use the originating port
number to distinguish "real" NFS clients from NFS clients run by
ordinary users, to prevent ordinary users from spoofing credentials.
The originating port number on a gss-authenticated request is less
important. The authentication ties the request to a user, and we take
it as proof that that user authorized the request. The low port number
check no longer adds much.
So, don't enforce low port numbers in the auth_gss case.
Reviewed-by: Chuck Lever <chuck.lever@oracle.com>
Signed-off-by: J. Bruce Fields <bfields@redhat.com>
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Signed-off-by: J. Bruce Fields <bfields@redhat.com>
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The variables nlm_ntf_refcnt and nlm_ntf_wq are local to the source and
do not need to be in global scope, so make them static.
Cleans up sparse warnings:
fs/lockd/svc.c:60:10: warning: symbol 'nlm_ntf_refcnt' was not declared.
Should it be static?
fs/lockd/svc.c:61:1: warning: symbol 'nlm_ntf_wq' was not declared.
Should it be static?
Signed-off-by: Colin Ian King <colin.king@canonical.com>
Signed-off-by: J. Bruce Fields <bfields@redhat.com>
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We already send it for v4.1, but RFC7530 also notes that the stateid in
the close reply is bogus.
Always send the special close stateid, even in v4.0 responses. No client
should put any meaning on it whatsoever. For now, we continue to
increment the stateid value, though that might not be necessary either.
Signed-off-by: Jeff Layton <jlayton@redhat.com>
Signed-off-by: J. Bruce Fields <bfields@redhat.com>
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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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This fixes xfstests/generic/392.
The failure was caused by different times between 1) one marked in the last
fsync(2) call and 2) the other given by roll-forward recovery after power-cut.
The reason was that we skipped updating inode block at 1), since its i_size
was recoverable along with 4KB-aligned data writes, which was fixed by:
"f2fs: fix a wrong condition in f2fs_skip_inode_update"
Reviewed-by: Chao Yu <yuchao0@huawei.com>
Signed-off-by: Jaegeuk Kim <jaegeuk@kernel.org>
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In make_dentry_ptr_block, it is confused with "&" for t->dentry_bitmap
but without "&" for t->dentry, so delete "&" to make code more readable.
Signed-off-by: Yunlong Song <yunlong.song@huawei.com>
Reviewed-by: Chao Yu <yuchao0@huawei.com>
Signed-off-by: Jaegeuk Kim <jaegeuk@kernel.org>
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If write is failed, we must deallocate the blocks that we couldn't write.
Cc: stable@vger.kernel.org
Reviewed-by: Chao Yu <yuchao0@huawei.com>
Signed-off-by: Jaegeuk Kim <jaegeuk@kernel.org>
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Fix commit 97dd26ad8347 (f2fs: fix wrong AUTO_RECOVER condition).
We should use ~PAGE_MASK to determine whether i_size is aligned to
the f2fs's block size or not.
Signed-off-by: Junling Zheng <zhengjunling@huawei.com>
Reviewed-by: Chao Yu <yuchao0@huawei.com>
Signed-off-by: Jaegeuk Kim <jaegeuk@kernel.org>
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Reserve an F2FS feature flag and inode flag for fs-verity. This is an
in-development feature that is planned be discussed at LSF/MM 2018 [1].
It will provide file-based integrity and authenticity for read-only
files. Most code will be in a filesystem-independent module, with
smaller changes needed to individual filesystems that opt-in to
supporting the feature. An early prototype supporting F2FS is available
[2]. Reserving the F2FS on-disk bits for fs-verity will prevent users
of the prototype from conflicting with other new F2FS features.
Note that we're reserving the inode flag in f2fs_inode.i_advise, which
isn't really appropriate since it's not a hint or advice. But
->i_advise is already being used to hold the 'encrypt' flag; and F2FS's
->i_flags uses the generic FS_* values, so it seems ->i_flags can't be
used for an F2FS-specific flag without additional work to remove the
assumption that ->i_flags uses the generic flags namespace.
[1] https://marc.info/?l=linux-fsdevel&m=151690752225644
[2] https://git.kernel.org/pub/scm/linux/kernel/git/mhalcrow/linux.git/log/?h=fs-verity-dev
Signed-off-by: Eric Biggers <ebiggers@google.com>
Signed-off-by: Jaegeuk Kim <jaegeuk@kernel.org>
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