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* Documentation: tweak the maintainers entryJonathan Corbet2015-03-261-1/+3
| | | | | | | | The previous maintainer didn't want translation patches, but I'll happily take them. Also note a few subdirectories where the subsystem maintainers would prefer to handle docs patches themselves. Signed-off-by: Jonathan Corbet <corbet@lwn.net>
* README: Change gzip/bzip2 to xz compression formatYaowei Bai2015-03-201-13/+5Star
| | | | | | | | Kernel.org is only hosting patches and kernel compressed with xz, so change the old gzip/bzip2 instances to xz. Signed-off-by: Yaowei Bai <bywxiaobai@163.com> Signed-off-by: Jonathan Corbet <corbet@lwn.net>
* README: Update version number referenceJeff Kirsher2015-03-201-17/+17
| | | | | | | When 4.0 is released, the README should reflect the new numbering. Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com> Signed-off-by: Jonathan Corbet <corbet@lwn.net>
* doc:pci: Fix typo in Documentation/PCIMasanari Iida2015-03-203-6/+6
| | | | | | | This patch fix spelling typo in Documentation/PCI. Signed-off-by: Masanari Iida <standby24x7@gmail.com> Signed-off-by: Jonathan Corbet <corbet@lwn.net>
* Documentation: drm: Use '->' when describing access through pointers.Liviu Dudau2015-03-201-1/+1
| | | | | | | | The documentation is trying to describe accessing a field through a pointer, but it is using '-<' instead of '->'. Fix that. Signed-off-by: Liviu Dudau <Liviu.Dudau@arm.com> Signed-off-by: Jonathan Corbet <corbet@lwn.net>
* Documentation: Remove mentioning of block barriersLeonid V. Fedorenchik2015-03-201-27/+9Star
| | | | | | | | Remove mentioning of block barriers since they were removed. Reviewed-by: Christoph Hellwig <hch@lst.de> Signed-off-by: Leonid V. Fedorenchik <leonidsbox@gmail.com> Signed-off-by: Jonathan Corbet <corbet@lwn.net>
* Documentation/email-clients.txt: Fix one grammar mistake, add extra info ↵Giedrius Statkevičius2015-03-201-1/+10
| | | | | | | | | | | | | | about TB Fix one grammar mistake (Allows->Allow) and add extra information about the external editor add-on of Thunderbird: the developer must make sure that their editor doesn't fork (IOW it mustn't return before closing) thus they should be careful how they configure the addon. Furthermore, add a tip how to do it with gvim. Signed-off-by: Giedrius Statkevičius <giedrius.statkevicius@gmail.com> [jc: some minor wording/formatting tweaks] Signed-off-by: Jonathan Corbet <corbet@lwn.net>
* kprobes: Update Documentation/kprobes.txtLi Bin2015-03-201-2/+2
| | | | | | | | | | | The patch 125e564("Move Kconfig.instrumentation to arch/Kconfig and init/Kconfig") had removed the "Instrumentation Support" menu, and the configurations under this had be moved to "General setup". Update Documentation/kprobes.txt to reflect this change. Signed-off-by: Li Bin <huawei.libin@huawei.com> Acked-by: Masami Hiramatsu <masami.hiramatsu.pt@hitachi.com> Signed-off-by: Jonathan Corbet <corbet@lwn.net>
* Documentation: i2o: remove duplicate documentationWolfram Sang2015-03-202-457/+0Star
| | | | | | | | | | | We can remove the i2o documentation because a) the subsystem has been moved to staging with commit 2cbf7fe2d5d32a (i2o: move to staging) anyhow and b) the here removed files are present in the subsystem directory again. There, README even has an additional paragraph and the ioctl docs only differ in whitespaces. Well... Signed-off-by: Wolfram Sang <wsa@the-dreams.de> Signed-off-by: Jonathan Corbet <corbet@lwn.net>
* Documentation: update the CONFIG_DEBUG_PAGEALLOC descriptionWang Long2015-03-201-2/+2
| | | | | | | | | The CONFIG_DEBUG_PAGEALLOC option now is located under "Kernel hacking" / "Memory Debugging" / "Debug page memory allocations". so we should update the description in kmemcheck.txt. Signed-off-by: Wang Long <long.wanglong@huawei.com> Signed-off-by: Jonathan Corbet <corbet@lwn.net>
* mem-hotplug: fix typo in Documentation/memory-hotplug.txtSheng Yong2015-03-201-1/+1
| | | | | | | Fix a trivial typo in Documentation/memory-hotplug.txt. Signed-off-by: Sheng Yong <shengyong1@huawei.com> Signed-off-by: Jonathan Corbet <corbet@lwn.net>
* doc: printk-formats: Fix %pU descriptionRasmus Villemoes2015-03-201-1/+1
| | | | | | | The documentation and the code disagrees; fix the former. Signed-off-by: Rasmus Villemoes <linux@rasmusvillemoes.dk> Signed-off-by: Jonathan Corbet <corbet@lwn.net>
* MSI-HOWTO.txt: remove reference on IRQF_DISABLEDValentin Rothberg2015-03-201-12/+3Star
| | | | | | | | | | | | | | | | The IRQF_DISABLED is a NOOP and scheduled to be removed. According to Ingo Molnar in commit e58aa3d2d0cc01ad8d6f7f640a0670433f794922 (genirq: Run irq handlers with interrupts disabled), running IRQ handlers with interrupts enabled can cause stack overflows when the interrupt line of the issuing device is still active. This patch removes IRQF_DISABLED from this documentation. It was mentioned to be a solution to avoid deadlocks when a device uses multiple interrupts. As the flag is a NOOP this solution does not work anymore. Signed-off-by: Valentin Rothberg <Valentin.Rothberg@lip6.fr> Signed-off-by: Jonathan Corbet <corbet@lwn.net>
* doc: add information about max_ptes_noneEbru Akagunduz2015-03-201-0/+11
| | | | | | | | | | | | | | | | | max_ptes_none specifies how many extra small pages (that are not already mapped) can be allocated when collapsing a group of small pages into one large page. /sys/kernel/mm/transparent_hugepage/khugepaged/max_ptes_none A higher value leads to use additional memory for programs. A lower value leads to gain less thp performance. Value of max_ptes_none can waste cpu time very little, you can ignore it. Signed-off-by: Ebru Akagunduz <ebru.akagunduz@gmail.com> Reviewed-by: Rik van Riel <riel@redhat.com> Signed-off-by: Jonathan Corbet <corbet@lwn.net>
* Documentation: add print bitmap descriptionWang Long2015-03-201-0/+9
| | | | | | | | | | as the commit: "lib/vsprintf: implement bitmap printing through '%*pb[l]'" add an easy way to print bitmaps. so printk-formats.txt should reflect it. Signed-off-by: Wang Long <long.wanglong@huawei.com> Acked-by: Tejun Heo <tj@kernel.org> Signed-off-by: Jonathan Corbet <corbet@lwn.net>
* doc/input : Fix typos in Documentation/inputMasanari Iida2015-03-196-7/+7
| | | | | | | | This patch fix spelling typos in Documentations/input. Signed-off-by: Masanari Iida <standby24x7@gmail.com> Acked-by: Randy Dunlap <rdunlap@infradead.org> Signed-off-by: Jonathan Corbet <corbet@lwn.net>
* Doc/memory-hotplug.txt: corrections and callback function prototypeHeinrich Schuchardt2015-02-271-10/+35
| | | | | | | | | | | | | | | | | Documentation/memory-hotplug.txt describes that a callback function can be added to the notification chain by calling hotplug_memory_notifier(). The function prototype of the callback function is mssing. This missing information is added by the patch. The description of the arguments of the callback function is reworked. The constants for the event types are corrected. The possible return values are explained. Signed-off-by: Heinrich Schuchardt <xypron.glpk@gmx.de> Signed-off-by: Jonathan Corbet <corbet@lwn.net>
* Documentation/CodingStyle: improve text layoutPavel Kretov2015-02-271-69/+72
| | | | | | | | | | | | | | Try to make coding style documentation look a bit more readable and consistent with the following: - indent every code example in C to first tab-stop; - surround every code example with empty lines, both top and bottom; - remove empty lines where text looked way too spare; - do not indent examples in elisp and kconfig; - do not do any non-whitespace changes. Signed-off-by: Pavel Kretov <firegurafiku@gmail.com> Signed-off-by: Jonathan Corbet <corbet@lwn.net>
* Documentation/CodingStyle: fix tab-spaces mixturePavel Kretov2015-02-271-4/+4
| | | | | | | | | Coding style description has a irregular mixture of tabs and spaces in two places which is bad by any means and can possibly hurt somebody's sense of beauty. Signed-off-by: Pavel Kretov <firegurafiku@gmail.com> Signed-off-by: Jonathan Corbet <corbet@lwn.net>
* Documentation: Add "@" in front of private structure members.Robert P. J. Day2015-02-271-3/+3
| | | | | | | | | | | Even "private" structure members need a leading "@" in their kernel-doc; otherwise, they will be treated as new section names in the resulting manual. Signed-off-by: Robert P. J. Day <rpjday@crashcourse.ca> Acked-by: Randy Dunlap <rdunlap@infradead.org> Acked-By: Sebastian Reichel <sre@kernel.org> Signed-off-by: Jonathan Corbet <corbet@lwn.net>
* Documentation: arm: Update for DT-only platformsGregory Fong2015-02-272-6/+18
| | | | | | | | | | The documentation specified that a machine type is mandatory and made that assumption in a few places. However, for DT-only platforms, the current advice is that no machine type should be registered, so update accordingly. Signed-off-by: Gregory Fong <gregory.0xf0@gmail.com> Signed-off-by: Jonathan Corbet <corbet@lwn.net>
* Linux 4.0-rc1Linus Torvalds2015-02-231-4/+4
| | | | | | | | | | | | | | | | | | | | | .. after extensive statistical analysis of my G+ polling, I've come to the inescapable conclusion that internet polls are bad. Big surprise. But "Hurr durr I'ma sheep" trounced "I like online polls" by a 62-to-38% margin, in a poll that people weren't even supposed to participate in. Who can argue with solid numbers like that? 5,796 votes from people who can't even follow the most basic directions? In contrast, "v4.0" beat out "v3.20" by a slimmer margin of 56-to-44%, but with a total of 29,110 votes right now. Now, arguably, that vote spread is only about 3,200 votes, which is less than the almost six thousand votes that the "please ignore" poll got, so it could be considered noise. But hey, I asked, so I'll honor the votes.
* Merge tag 'ext4_for_linus' of ↵Linus Torvalds2015-02-235-56/+108
|\ | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | git://git.kernel.org/pub/scm/linux/kernel/git/tytso/ext4 Pull ext4 fixes from Ted Ts'o: "Ext4 bug fixes. We also reserved code points for encryption and read-only images (for which the implementation is mostly just the reserved code point for a read-only feature :-)" * tag 'ext4_for_linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tytso/ext4: ext4: fix indirect punch hole corruption ext4: ignore journal checksum on remount; don't fail ext4: remove duplicate remount check for JOURNAL_CHECKSUM change ext4: fix mmap data corruption in nodelalloc mode when blocksize < pagesize ext4: support read-only images ext4: change to use setup_timer() instead of init_timer() ext4: reserve codepoints used by the ext4 encryption feature jbd2: complain about descriptor block checksum errors
| * ext4: fix indirect punch hole corruptionOmar Sandoval2015-02-151-34/+71
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Commit 4f579ae7de56 (ext4: fix punch hole on files with indirect mapping) rewrote FALLOC_FL_PUNCH_HOLE for ext4 files with indirect mapping. However, there are bugs in several corner cases. This fixes 5 distinct bugs: 1. When there is at least one entire level of indirection between the start and end of the punch range and the end of the punch range is the first block of its level, we can't return early; we have to free the intervening levels. 2. When the end is at a higher level of indirection than the start and ext4_find_shared returns a top branch for the end, we still need to free the rest of the shared branch it returns; we can't decrement partial2. 3. When a punch happens within one level of indirection, we need to converge on an indirect block that contains the start and end. However, because the branches returned from ext4_find_shared do not necessarily start at the same level (e.g., the partial2 chain will be shallower if the last block occurs at the beginning of an indirect group), the walk of the two chains can end up "missing" each other and freeing a bunch of extra blocks in the process. This mismatch can be handled by first making sure that the chains are at the same level, then walking them together until they converge. 4. When the punch happens within one level of indirection and ext4_find_shared returns a top branch for the start, we must free it, but only if the end does not occur within that branch. 5. When the punch happens within one level of indirection and ext4_find_shared returns a top branch for the end, then we shouldn't free the block referenced by the end of the returned chain (this mirrors the different levels case). Signed-off-by: Omar Sandoval <osandov@osandov.com>
| * ext4: ignore journal checksum on remount; don't failEric Sandeen2015-02-131-3/+2Star
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | As of v3.18, ext4 started rejecting a remount which changes the journal_checksum option. Prior to that, it was simply ignored; the problem here is that if someone has this in their fstab for the root fs, now the box fails to boot properly, because remount of root with the new options will fail, and the box proceeds with a readonly root. I think it is a little nicer behavior to accept the option, but warn that it's being ignored, rather than failing the mount, but that might be a subjective matter... Reported-by: Cónräd <conradsand.arma@gmail.com> Signed-off-by: Eric Sandeen <sandeen@redhat.com> Signed-off-by: Theodore Ts'o <tytso@mit.edu>
| * ext4: remove duplicate remount check for JOURNAL_CHECKSUM changeEric Sandeen2015-02-131-11/+0Star
| | | | | | | | | | | | | | | | | | | | rejection of, changing journal_checksum during remount. One suffices. While we're at it, remove old comment about the "check" option which has been deprecated for some time now. Signed-off-by: Eric Sandeen <sandeen@redhat.com> Signed-off-by: Theodore Ts'o <tytso@mit.edu>
| * ext4: fix mmap data corruption in nodelalloc mode when blocksize < pagesizeXiaoguang Wang2015-02-131-0/+7
| | | | | | | | | | | | | | | | | | Since commit 90a8020 and d6320cb, Jan Kara has fixed this issue partially. This mmap data corruption still exists in nodelalloc mode, fix this. Signed-off-by: Xiaoguang Wang <wangxg.fnst@cn.fujitsu.com> Signed-off-by: Theodore Ts'o <tytso@mit.edu> Reviewed-by: Jan Kara <jack@suse.cz>
| * ext4: support read-only imagesDarrick J. Wong2015-02-132-1/+10
| | | | | | | | | | | | | | | | | | Add a rocompat feature, "readonly" to mark a FS image as read-only. The feature prevents the kernel and e2fsprogs from changing the image; the flag can be toggled by tune2fs. Signed-off-by: Darrick J. Wong <darrick.wong@oracle.com> Signed-off-by: Theodore Ts'o <tytso@mit.edu>
| * ext4: change to use setup_timer() instead of init_timer()Jan Mrazek2015-01-261-3/+2Star
| | | | | | | | | | Signed-off-by: Jan Mrazek <email@honzamrazek.cz> Signed-off-by: Theodore Ts'o <tytso@mit.edu>
| * ext4: reserve codepoints used by the ext4 encryption featureTheodore Ts'o2015-01-191-4/+13
| | | | | | | | Signed-off-by: Theodore Ts'o <tytso@mit.edu>
| * jbd2: complain about descriptor block checksum errorsDarrick J. Wong2015-01-191-0/+3
| | | | | | | | | | | | | | | | | | We should complain in dmesg when journal recovery fails on account of the descriptor block being corrupt, so that the diagnostic data can be recovered. Signed-off-by: Darrick J. Wong <darrick.wong@oracle.com> Signed-off-by: Theodore Ts'o <tytso@mit.edu>
* | Merge branch 'for-linus-2' of ↵Linus Torvalds2015-02-2370-758/+907
|\ \ | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | git://git.kernel.org/pub/scm/linux/kernel/git/viro/vfs Pull more vfs updates from Al Viro: "Assorted stuff from this cycle. The big ones here are multilayer overlayfs from Miklos and beginning of sorting ->d_inode accesses out from David" * 'for-linus-2' of git://git.kernel.org/pub/scm/linux/kernel/git/viro/vfs: (51 commits) autofs4 copy_dev_ioctl(): keep the value of ->size we'd used for allocation procfs: fix race between symlink removals and traversals debugfs: leave freeing a symlink body until inode eviction Documentation/filesystems/Locking: ->get_sb() is long gone trylock_super(): replacement for grab_super_passive() fanotify: Fix up scripted S_ISDIR/S_ISREG/S_ISLNK conversions Cachefiles: Fix up scripted S_ISDIR/S_ISREG/S_ISLNK conversions VFS: (Scripted) Convert S_ISLNK/DIR/REG(dentry->d_inode) to d_is_*(dentry) SELinux: Use d_is_positive() rather than testing dentry->d_inode Smack: Use d_is_positive() rather than testing dentry->d_inode TOMOYO: Use d_is_dir() rather than d_inode and S_ISDIR() Apparmor: Use d_is_positive/negative() rather than testing dentry->d_inode Apparmor: mediated_filesystem() should use dentry->d_sb not inode->i_sb VFS: Split DCACHE_FILE_TYPE into regular and special types VFS: Add a fallthrough flag for marking virtual dentries VFS: Add a whiteout dentry type VFS: Introduce inode-getting helpers for layered/unioned fs environments Infiniband: Fix potential NULL d_inode dereference posix_acl: fix reference leaks in posix_acl_create autofs4: Wrong format for printing dentry ...
| * | autofs4 copy_dev_ioctl(): keep the value of ->size we'd used for allocationAl Viro2015-02-221-2/+6
| | | | | | | | | | | | | | | | | | X-Coverup: just ask spender Cc: stable@vger.kernel.org Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
| * | procfs: fix race between symlink removals and traversalsAl Viro2015-02-223-12/+22
| | | | | | | | | | | | | | | | | | | | | use_pde()/unuse_pde() in ->follow_link()/->put_link() resp. Cc: stable@vger.kernel.org Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
| * | debugfs: leave freeing a symlink body until inode evictionAl Viro2015-02-221-17/+17
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | As it is, we have debugfs_remove() racing with symlink traversals. Supply ->evict_inode() and do freeing there - inode will remain pinned until we are done with the symlink body. And rip the idiocy with checking if dentry is positive right after we'd verified debugfs_positive(), which is a stronger check... Cc: stable@vger.kernel.org Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
| * | Documentation/filesystems/Locking: ->get_sb() is long goneAl Viro2015-02-221-2/+0Star
| | | | | | | | | | | | Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
| * | trylock_super(): replacement for grab_super_passive()Konstantin Khlebnikov2015-02-223-26/+22Star
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | I've noticed significant locking contention in memory reclaimer around sb_lock inside grab_super_passive(). Grab_super_passive() is called from two places: in icache/dcache shrinkers (function super_cache_scan) and from writeback (function __writeback_inodes_wb). Both are required for progress in memory allocator. Grab_super_passive() acquires sb_lock to increment sb->s_count and check sb->s_instances. It seems sb->s_umount locked for read is enough here: super-block deactivation always runs under sb->s_umount locked for write. Protecting super-block itself isn't a problem: in super_cache_scan() sb is protected by shrinker_rwsem: it cannot be freed if its slab shrinkers are still active. Inside writeback super-block comes from inode from bdi writeback list under wb->list_lock. This patch removes locking sb_lock and checks s_instances under s_umount: generic_shutdown_super() unlinks it under sb->s_umount locked for write. New variant is called trylock_super() and since it only locks semaphore, callers must call up_read(&sb->s_umount) instead of drop_super(sb) when they're done. Signed-off-by: Konstantin Khlebnikov <khlebnikov@yandex-team.ru> Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
| * | fanotify: Fix up scripted S_ISDIR/S_ISREG/S_ISLNK conversionsDavid Howells2015-02-221-1/+1
| | | | | | | | | | | | | | | | | | | | | | | | | | | Fanotify probably doesn't want to watch autodirs so make it use d_can_lookup() rather than d_is_dir() when checking a dir watch and give an error on fake directories. Signed-off-by: David Howells <dhowells@redhat.com> Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
| * | Cachefiles: Fix up scripted S_ISDIR/S_ISREG/S_ISLNK conversionsDavid Howells2015-02-224-9/+9
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Fix up the following scripted S_ISDIR/S_ISREG/S_ISLNK conversions (or lack thereof) in cachefiles: (1) Cachefiles mostly wants to use d_can_lookup() rather than d_is_dir() as it doesn't want to deal with automounts in its cache. (2) Coccinelle didn't find S_IS* expressions in ASSERT() statements in cachefiles. Signed-off-by: David Howells <dhowells@redhat.com> Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
| * | VFS: (Scripted) Convert S_ISLNK/DIR/REG(dentry->d_inode) to d_is_*(dentry)David Howells2015-02-2234-71/+71
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Convert the following where appropriate: (1) S_ISLNK(dentry->d_inode) to d_is_symlink(dentry). (2) S_ISREG(dentry->d_inode) to d_is_reg(dentry). (3) S_ISDIR(dentry->d_inode) to d_is_dir(dentry). This is actually more complicated than it appears as some calls should be converted to d_can_lookup() instead. The difference is whether the directory in question is a real dir with a ->lookup op or whether it's a fake dir with a ->d_automount op. In some circumstances, we can subsume checks for dentry->d_inode not being NULL into this, provided we the code isn't in a filesystem that expects d_inode to be NULL if the dirent really *is* negative (ie. if we're going to use d_inode() rather than d_backing_inode() to get the inode pointer). Note that the dentry type field may be set to something other than DCACHE_MISS_TYPE when d_inode is NULL in the case of unionmount, where the VFS manages the fall-through from a negative dentry to a lower layer. In such a case, the dentry type of the negative union dentry is set to the same as the type of the lower dentry. However, if you know d_inode is not NULL at the call site, then you can use the d_is_xxx() functions even in a filesystem. There is one further complication: a 0,0 chardev dentry may be labelled DCACHE_WHITEOUT_TYPE rather than DCACHE_SPECIAL_TYPE. Strictly, this was intended for special directory entry types that don't have attached inodes. The following perl+coccinelle script was used: use strict; my @callers; open($fd, 'git grep -l \'S_IS[A-Z].*->d_inode\' |') || die "Can't grep for S_ISDIR and co. callers"; @callers = <$fd>; close($fd); unless (@callers) { print "No matches\n"; exit(0); } my @cocci = ( '@@', 'expression E;', '@@', '', '- S_ISLNK(E->d_inode->i_mode)', '+ d_is_symlink(E)', '', '@@', 'expression E;', '@@', '', '- S_ISDIR(E->d_inode->i_mode)', '+ d_is_dir(E)', '', '@@', 'expression E;', '@@', '', '- S_ISREG(E->d_inode->i_mode)', '+ d_is_reg(E)' ); my $coccifile = "tmp.sp.cocci"; open($fd, ">$coccifile") || die $coccifile; print($fd "$_\n") || die $coccifile foreach (@cocci); close($fd); foreach my $file (@callers) { chomp $file; print "Processing ", $file, "\n"; system("spatch", "--sp-file", $coccifile, $file, "--in-place", "--no-show-diff") == 0 || die "spatch failed"; } [AV: overlayfs parts skipped] Signed-off-by: David Howells <dhowells@redhat.com> Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
| * | SELinux: Use d_is_positive() rather than testing dentry->d_inodeDavid Howells2015-02-221-2/+2
| | | | | | | | | | | | | | | | | | | | | | | | Use d_is_positive() rather than testing dentry->d_inode in SELinux to get rid of direct references to d_inode outside of the VFS. Signed-off-by: David Howells <dhowells@redhat.com> Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
| * | Smack: Use d_is_positive() rather than testing dentry->d_inodeDavid Howells2015-02-221-2/+2
| | | | | | | | | | | | | | | | | | | | | | | | Use d_is_positive() rather than testing dentry->d_inode in Smack to get rid of direct references to d_inode outside of the VFS. Signed-off-by: David Howells <dhowells@redhat.com> Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
| * | TOMOYO: Use d_is_dir() rather than d_inode and S_ISDIR()David Howells2015-02-221-3/+1Star
| | | | | | | | | | | | | | | | | | | | | | | | Use d_is_dir() rather than d_inode and S_ISDIR(). Note that this will include fake directories such as automount triggers. Signed-off-by: David Howells <dhowells@redhat.com> Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
| * | Apparmor: Use d_is_positive/negative() rather than testing dentry->d_inodeDavid Howells2015-02-221-1/+1
| | | | | | | | | | | | | | | | | | | | | | | | | | | Use d_is_positive(dentry) or d_is_negative(dentry) rather than testing dentry->d_inode as the dentry may cover another layer that has an inode when the top layer doesn't or may hold a 0,0 chardev that's actually a whiteout. Signed-off-by: David Howells <dhowells@redhat.com> Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
| * | Apparmor: mediated_filesystem() should use dentry->d_sb not inode->i_sbDavid Howells2015-02-222-12/+12
| | | | | | | | | | | | | | | | | | | | | | | | mediated_filesystem() should use dentry->d_sb not dentry->d_inode->i_sb and should avoid file_inode() also since it is really dealing with the path. Signed-off-by: David Howells <dhowells@redhat.com> Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
| * | VFS: Split DCACHE_FILE_TYPE into regular and special typesDavid Howells2015-02-222-8/+27
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Split DCACHE_FILE_TYPE into DCACHE_REGULAR_TYPE (dentries representing regular files) and DCACHE_SPECIAL_TYPE (representing blockdev, chardev, FIFO and socket files). d_is_reg() and d_is_special() are added to detect these subtypes and d_is_file() is left as the union of the two. This allows a number of places that use S_ISREG(dentry->d_inode->i_mode) to use d_is_reg(dentry) instead. Signed-off-by: David Howells <dhowells@redhat.com> Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
| * | VFS: Add a fallthrough flag for marking virtual dentriesDavid Howells2015-02-222-1/+27
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Add a DCACHE_FALLTHRU flag to indicate that, in a layered filesystem, this is a virtual dentry that covers another one in a lower layer that should be used instead. This may be recorded on medium if directory integration is stored there. The flag can be set with d_set_fallthru() and tested with d_is_fallthru(). Original-author: Valerie Aurora <vaurora@redhat.com> Signed-off-by: David Howells <dhowells@redhat.com> Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
| * | VFS: Add a whiteout dentry typeDavid Howells2015-02-221-6/+18
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Add DCACHE_WHITEOUT_TYPE and provide a d_is_whiteout() accessor function. A d_is_miss() accessor is also added for ordinary cache misses and d_is_negative() is modified to indicate either an ordinary miss or an enforced miss (whiteout). Signed-off-by: David Howells <dhowells@redhat.com> Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
| * | VFS: Introduce inode-getting helpers for layered/unioned fs environmentsDavid Howells2015-02-221-0/+57
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Introduce some function for getting the inode (and also the dentry) in an environment where layered/unioned filesystems are in operation. The problem is that we have places where we need *both* the union dentry and the lower source or workspace inode or dentry available, but we can only have a handle on one of them. Therefore we need to derive the handle to the other from that. The idea is to introduce an extra field in struct dentry that allows the union dentry to refer to and pin the lower dentry. Signed-off-by: David Howells <dhowells@redhat.com> Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
| * | Merge branch 'overlayfs-next' of ↵Al Viro2015-02-207-319/+517
| |\ \ | | | | | | | | | | | | git://git.kernel.org/pub/scm/linux/kernel/git/mszeredi/vfs into for-next
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