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2018-07-12do_shmat(): grab shp->shm_file earlier, switch to alloc_file_clone()Al Viro1-21/+18
Acked-by: Linus Torvalds <torvalds@linux-foundation.org> Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
2018-07-12new helper: alloc_file_clone()Al Viro3-4/+15
alloc_file_clone(old_file, mode, ops): create a new struct file with ->f_path equal to that of old_file. pipe converted. Acked-by: Linus Torvalds <torvalds@linux-foundation.org> Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
2018-07-12create_pipe_files(): switch the first allocation to alloc_file_pseudo()Al Viro1-26/+8
Acked-by: Linus Torvalds <torvalds@linux-foundation.org> Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
2018-07-12anon_inode_getfile(): switch to alloc_file_pseudo()Al Viro1-23/+6
Acked-by: Linus Torvalds <torvalds@linux-foundation.org> Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
2018-07-12hugetlb_file_setup(): switch to alloc_file_pseudo()Al Viro1-37/+16
Acked-by: Linus Torvalds <torvalds@linux-foundation.org> Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
2018-07-12ocxlflash_getfile(): switch to alloc_file_pseudo()Al Viro1-19/+4
Acked-by: Linus Torvalds <torvalds@linux-foundation.org> Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
2018-07-12cxl_getfile(): switch to alloc_file_pseudo()Al Viro1-17/+4
Acked-by: Linus Torvalds <torvalds@linux-foundation.org> Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
2018-07-12... and switch shmem_file_setup() to alloc_file_pseudo()Al Viro1-30/+7
Acked-by: Linus Torvalds <torvalds@linux-foundation.org> Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
2018-07-12__shmem_file_setup(): reorder allocationsAl Viro1-23/+20
grab inode and reserve memory first. Acked-by: Linus Torvalds <torvalds@linux-foundation.org> Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
2018-07-12new wrapper: alloc_file_pseudo()Al Viro4-39/+39
takes inode, vfsmount, name, O_... flags and file_operations and either returns a new struct file (in which case inode reference we held is consumed) or returns ERR_PTR(), in which case no refcounts are altered. converted aio_private_file() and sock_alloc_file() to it Acked-by: Linus Torvalds <torvalds@linux-foundation.org> Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
2018-07-12kill FILE_{CREATED,OPENED}Al Viro1-4/+0
no users left Acked-by: Linus Torvalds <torvalds@linux-foundation.org> Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
2018-07-12switch atomic_open() and lookup_open() to returning 0 in all success casesAl Viro1-17/+17
caller can tell "opened" from "open it yourself" by looking at ->f_mode. Acked-by: Linus Torvalds <torvalds@linux-foundation.org> Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
2018-07-12document ->atomic_open() changesAl Viro3-9/+19
Acked-by: Linus Torvalds <torvalds@linux-foundation.org> Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
2018-07-12->atomic_open(): return 0 in all success casesAl Viro2-17/+17
FMODE_OPENED can be used to distingusish "successful open" from the "called finish_no_open(), do it yourself" cases. Since finish_no_open() has been adjusted, no changes in the instances were actually needed. The caller has been adjusted. Acked-by: Linus Torvalds <torvalds@linux-foundation.org> Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
2018-07-12get rid of 'opened' in path_openat() and the helpers downstreamAl Viro1-14/+8
unused now Acked-by: Linus Torvalds <torvalds@linux-foundation.org> Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
2018-07-12get rid of 'opened' argument of ->atomic_open() - part 3Al Viro13-21/+13
now it can be done... Acked-by: Linus Torvalds <torvalds@linux-foundation.org> Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
2018-07-12getting rid of 'opened' argument of ->atomic_open() - part 2Al Viro3-15/+13
__gfs2_lookup(), gfs2_create_inode(), nfs_finish_open() and fuse_create_open() don't need 'opened' anymore. Get rid of that argument in those. Acked-by: Linus Torvalds <torvalds@linux-foundation.org> Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
2018-07-12getting rid of 'opened' argument of ->atomic_open() - part 1Al Viro10-14/+12
'opened' argument of finish_open() is unused. Kill it. Signed-off-by Al Viro <viro@zeniv.linux.org.uk>
2018-07-12IMA: don't propagate opened through the entire thingAl Viro6-17/+16
just check ->f_mode in ima_appraise_measurement() Acked-by: Linus Torvalds <torvalds@linux-foundation.org> Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
2018-07-12introduce FMODE_CREATED and switch to itAl Viro10-15/+20
Parallel to FILE_CREATED, goes into ->f_mode instead of *opened. NFS is a bit of a wart here - it doesn't have file at the point where FILE_CREATED used to be set, so we need to propagate it there (for now). IMA is another one (here and everywhere)... Note that this needs do_dentry_open() to leave old bits in ->f_mode alone - we want it to preserve FMODE_CREATED if it had been already set (no other bit can be there). Acked-by: Linus Torvalds <torvalds@linux-foundation.org> Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
2018-07-12switch all remaining checks for FILE_OPENED to FMODE_OPENEDAl Viro3-13/+5
... and don't bother with setting FILE_OPENED at all. Acked-by: Linus Torvalds <torvalds@linux-foundation.org> Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
2018-07-12now we can fold open_check_o_direct() into do_dentry_open()Al Viro3-19/+6
These checks are better off in do_dentry_open(); the reason we couldn't put them there used to be that callers couldn't tell what kind of cleanup would do_dentry_open() failure call for. Now that we have FMODE_OPENED, cleanup is the same in all cases - it's simply fput(). So let's fold that into do_dentry_open(), as Christoph's patch tried to. Acked-by: Linus Torvalds <torvalds@linux-foundation.org> Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
2018-07-12lift fput() on late failures into path_openat()Al Viro1-16/+12
Acked-by: Linus Torvalds <torvalds@linux-foundation.org> Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
2018-07-12fold put_filp() into fput()Al Viro4-21/+10
Just check FMODE_OPENED in __fput() and be done with that... Acked-by: Linus Torvalds <torvalds@linux-foundation.org> Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
2018-07-12introduce FMODE_OPENEDAl Viro3-1/+5
basically, "is that instance set up enough for regular fput(), or do we want put_filp() for that one". NOTE: the only alloc_file() caller that could be followed by put_filp() is in arch/ia64/kernel/perfmon.c, which is (Kconfig-level) broken. Acked-by: Linus Torvalds <torvalds@linux-foundation.org> Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
2018-07-12->file_open(): lose cred argumentAl Viro6-10/+10
Acked-by: Linus Torvalds <torvalds@linux-foundation.org> Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
2018-07-12security_file_open(): lose cred argumentAl Viro3-6/+5
Acked-by: Linus Torvalds <torvalds@linux-foundation.org> Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
2018-07-12get rid of cred argument of vfs_open() and do_dentry_open()Al Viro3-12/+9
always equal to ->f_cred Acked-by: Linus Torvalds <torvalds@linux-foundation.org> Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
2018-07-12pass ->f_flags value to alloc_empty_file()Al Viro4-13/+9
... and have it set the f_flags-derived part of ->f_mode. Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
2018-07-12pass creds to get_empty_filp(), make sure dentry_open() passes the right credsAl Viro4-6/+5
... and rename get_empty_filp() to alloc_empty_file(). dentry_open() gets creds as argument, but the only thing that sees those is security_file_open() - file->f_cred still ends up with current_cred(). For almost all callers it's the same thing, but there are several broken cases. Acked-by: Linus Torvalds <torvalds@linux-foundation.org> Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
2018-07-12alloc_file(): switch to passing O_... flags instead of FMODE_... modeAl Viro12-36/+27
... so that it could set both ->f_flags and ->f_mode, without callers having to set ->f_flags manually. Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
2018-07-10make sure do_dentry_open() won't return positive as an errorAl Viro1-0/+2
An ->open() instances really, really should not be doing that. There's a lot of places e.g. around atomic_open() that could be confused by that, so let's catch that early. Acked-by: Linus Torvalds <torvalds@linux-foundation.org> Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
2018-07-10create_pipe_files(): use fput() if allocation of the second file failsAl Viro1-4/+3
... just use put_pipe_info() to get the pipe->files down to 1 and let fput()-called pipe_release() do freeing. Acked-by: Linus Torvalds <torvalds@linux-foundation.org> Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
2018-07-10turn filp_clone_open() into inline wrapper for dentry_open()Al Viro4-23/+6
it's exactly the same thing as dentry_open(&file->f_path, file->f_flags, file->f_cred) ... and rename it to file_clone_open(), while we are at it. 'filp' naming convention is bogus; sure, it's "file pointer", but we generally don't do that kind of Hungarian notation. Some of the instances have too many callers to touch, but this one has only two, so let's sanitize it while we can... Acked-by: Linus Torvalds <torvalds@linux-foundation.org> Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
2018-07-10fold security_file_free() into file_free()Al Viro1-6/+4
.. and the call of file_free() in case of security_file_alloc() failure in get_empty_filp() should be simply file_free_rcu() - no point in rcu-delays there, anyway. Acked-by: Linus Torvalds <torvalds@linux-foundation.org> Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
2018-07-10ocxlflash_getfile(): fix double-iput() on alloc_file() failuresAl Viro1-3/+2
Cc: stable@vger.kernel.org Acked-by: Linus Torvalds <torvalds@linux-foundation.org> Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
2018-07-10cxl_getfile(): fix double-iput() on alloc_file() failuresAl Viro1-4/+4
Doing iput() after path_put() is wrong. Cc: stable@vger.kernel.org Acked-by: Linus Torvalds <torvalds@linux-foundation.org> Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
2018-07-10drm_mode_create_lease_ioctl(): fix open-coded filp_clone_open()Al Viro3-16/+2
Failure of ->open() should *not* be followed by fput(). Fixed by using filp_clone_open(), which gets the cleanups right. Cc: stable@vger.kernel.org Acked-by: Linus Torvalds <torvalds@linux-foundation.org> Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
2018-06-27proc: add proc_seq_releaseChunyu Hu1-1/+10
kmemleak reported some memory leak on reading proc files. After adding some debug lines, find that proc_seq_fops is using seq_release as release handler, which won't handle the free of 'private' field of seq_file, while in fact the open handler proc_seq_open could create the private data with __seq_open_private when state_size is greater than zero. So after reading files created with proc_create_seq_private, such as /proc/timer_list and /proc/vmallocinfo, the private mem of a seq_file is not freed. Fix it by adding the paired proc_seq_release as the default release handler of proc_seq_ops instead of seq_release. Fixes: 44414d82cfe0 ("proc: introduce proc_create_seq_private") Reviewed-by: Christoph Hellwig <hch@lst.de> CC: Christoph Hellwig <hch@lst.de> Signed-off-by: Chunyu Hu <chuhu@redhat.com> Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
2018-06-17Linux 4.18-rc1Linus Torvalds1-2/+2
2018-06-15fix a series of Documentation/ broken file name referencesMauro Carvalho Chehab8-9/+10
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>
2018-06-15Documentation: rstFlatTable.py: fix a broken referenceMauro Carvalho Chehab1-2/+0
The old HOWTO was removed a long time ago. The flat table version is not metioned elsewhere, so just get rid of the text. Signed-off-by: Mauro Carvalho Chehab <mchehab+samsung@kernel.org> Acked-by: Jonathan Corbet <corbet@lwn.net>
2018-06-15ABI: sysfs-devices-system-cpu: remove a broken referenceMauro Carvalho Chehab1-3/+0
This file doesn't exist anymore: Documentation/cpu-freq/user-guide.txt As the ABI already points to Documentation/cpu-freq, just remove the broken link and the associated text. Signed-off-by: Mauro Carvalho Chehab <mchehab+samsung@kernel.org> Acked-by: Jonathan Corbet <corbet@lwn.net>
2018-06-15devicetree: fix a series of wrong file referencesMauro Carvalho Chehab8-14/+14
As files got renamed, their references broke. Manually fix a series of broken refs at the DT bindings. Signed-off-by: Mauro Carvalho Chehab <mchehab+samsung@kernel.org> Acked-by: Jonathan Corbet <corbet@lwn.net>
2018-06-15devicetree: fix name of pinctrl-bindings.txtMauro Carvalho Chehab9-12/+12
Rename: pinctrl-binding.txt -> pinctrl-bindings.txt In order to match the current name of this file. Signed-off-by: Mauro Carvalho Chehab <mchehab+samsung@kernel.org> Acked-by: Jonathan Corbet <corbet@lwn.net>
2018-06-15devicetree: fix some bindings file namesMauro Carvalho Chehab3-3/+3
There were some file movements that changed the location for some DT bindings. Fix them with: scripts/documentation-file-ref-check --fix After manually checking if the new file makes sense. Signed-off-by: Mauro Carvalho Chehab <mchehab+samsung@kernel.org> Acked-by: Jonathan Corbet <corbet@lwn.net>
2018-06-15MAINTAINERS: fix location of DT npcm filesMauro Carvalho Chehab1-1/+2
The specified locations are not right. Fix the wildcard logic to point to the correct directories. Without that, get-maintainer won't get things right: $ ./scripts/get_maintainer.pl --no-git-fallback --no-r --no-n --no-l -f Documentation/devicetree/bindings/arm/cpu-enable-method/nuvoton,npcm750-smp robh+dt@kernel.org (maintainer:OPEN FIRMWARE AND FLATTENED DEVICE TREE BINDINGS) mark.rutland@arm.com (maintainer:OPEN FIRMWARE AND FLATTENED DEVICE TREE BINDINGS) After the patch, it will properly point to NPCM arch maintainers: $ ./scripts/get_maintainer.pl --no-git-fallback --no-r --no-n --no-l -f Documentation/devicetree/bindings/arm/cpu-enable-method/nuvoton,npcm750-smp avifishman70@gmail.com (supporter:ARM/NUVOTON NPCM ARCHITECTURE) tmaimon77@gmail.com (supporter:ARM/NUVOTON NPCM ARCHITECTURE) robh+dt@kernel.org (maintainer:OPEN FIRMWARE AND FLATTENED DEVICE TREE BINDINGS) mark.rutland@arm.com (maintainer:OPEN FIRMWARE AND FLATTENED DEVICE TREE BINDINGS) Cc: Avi Fishman <avifishman70@gmail.com> Cc: Tomer Maimon <tmaimon77@gmail.com> Cc: Patrick Venture <venture@google.com> Cc: Nancy Yuen <yuenn@google.com> Cc: Brendan Higgins <brendanhiggins@google.com> Signed-off-by: Mauro Carvalho Chehab <mchehab+samsung@kernel.org> Acked-by: Jonathan Corbet <corbet@lwn.net>
2018-06-15MAINTAINERS: fix location of some display DT bindingsMauro Carvalho Chehab1-3/+2
Those files got a manufacturer's name prepended and were moved around. Adjust their references accordingly. Also, due those movements, Documentation/devicetree/bindings/video doesn't exist anymore. Cc: David Airlie <airlied@linux.ie> Cc: David Lechner <david@lechnology.com> Cc: Peter Senna Tschudin <peter.senna@collabora.com> Cc: Martin Donnelly <martin.donnelly@ge.com> Cc: Martyn Welch <martyn.welch@collabora.co.uk> Cc: Stefan Agner <stefan@agner.ch> Cc: Alison Wang <alison.wang@nxp.com> Cc: Eric Anholt <eric@anholt.net> Signed-off-by: Mauro Carvalho Chehab <mchehab+samsung@kernel.org> Acked-by: Jonathan Corbet <corbet@lwn.net>
2018-06-15kernel-parameters.txt: fix pointers to sound parametersMauro Carvalho Chehab1-4/+1
The alsa parameters file was renamed to alsa-configuration.rst. With regards to OSS, it got retired as a hole by at changeset 727dede0ba8a ("sound: Retire OSS"). So, it doesn't make sense to keep mentioning it at kernel-parameters.txt. Fixes: 727dede0ba8a ("sound: Retire OSS") Signed-off-by: Mauro Carvalho Chehab <mchehab+samsung@kernel.org> Acked-by: Jonathan Corbet <corbet@lwn.net>
2018-06-15bindings: nvmem/zii: Fix location of nvmem.txtMauro Carvalho Chehab1-1/+1
The location pointed there is missing "bindings/" on its path. Acked-by: Srinivas Kandagatla <srinivas.kandagatla@linaro.org> Signed-off-by: Mauro Carvalho Chehab <mchehab+samsung@kernel.org> Acked-by: Jonathan Corbet <corbet@lwn.net>
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