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* vfs: define struct filename and have getname() return itJeff Layton2012-10-1240-175/+218
| | | | | | | | | | | | | | | | | | | | | | getname() is intended to copy pathname strings from userspace into a kernel buffer. The result is just a string in kernel space. It would however be quite helpful to be able to attach some ancillary info to the string. For instance, we could attach some audit-related info to reduce the amount of audit-related processing needed. When auditing is enabled, we could also call getname() on the string more than once and not need to recopy it from userspace. This patchset converts the getname()/putname() interfaces to return a struct instead of a string. For now, the struct just tracks the string in kernel space and the original userland pointer for it. Later, we'll add other information to the struct as it becomes convenient. Signed-off-by: Jeff Layton <jlayton@redhat.com> Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
* vfs: unexport getname and putname symbolsJeff Layton2012-10-121-2/+0
| | | | | | | I see no callers in module code. Signed-off-by: Jeff Layton <jlayton@redhat.com> Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
* acct: constify the name arg to acct_onJeff Layton2012-10-121-1/+1
| | | | | Signed-off-by: Jeff Layton <jlayton@redhat.com> Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
* vfs: allocate page instead of names_cache buffer in mount_block_rootJeff Layton2012-10-122-5/+5
| | | | | | | | | | | | | | | | | | | | | | First, it's incorrect to call putname() after __getname_gfp() since the bare __getname_gfp() call skips the auditing code, while putname() doesn't. mount_block_root allocates a PATH_MAX buffer via __getname_gfp, and then calls get_fs_names to fill the buffer. That function can call get_filesystem_list which assumes that that buffer is a full page in size. On arches where PAGE_SIZE != 4k, then this could potentially overrun. In practice, it's hard to imagine the list of filesystem names even approaching 4k, but it's best to be safe. Just allocate a page for this purpose instead. With this, we can also remove the __getname_gfp() definition since there are no more callers. Signed-off-by: Jeff Layton <jlayton@redhat.com> Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
* audit: overhaul __audit_inode_child to accomodate retryingJeff Layton2012-10-125-38/+47
| | | | | | | | | | | | | | In order to accomodate retrying path-based syscalls, we need to add a new "type" argument to audit_inode_child. This will tell us whether we're looking for a child entry that represents a create or a delete. If we find a parent, don't automatically assume that we need to create a new entry. Instead, use the information we have to try to find an existing entry first. Update it if one is found and create a new one if not. Signed-off-by: Jeff Layton <jlayton@redhat.com> Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
* audit: optimize audit_compare_dname_pathJeff Layton2012-10-124-12/+20
| | | | | | | | | | In the cases where we already know the length of the parent, pass it as a parm so we don't need to recompute it. In the cases where we don't know the length, pass in AUDIT_NAME_FULL (-1) to indicate that it should be determined. Signed-off-by: Jeff Layton <jlayton@redhat.com> Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
* audit: make audit_compare_dname_path use parent_len helperEric Paris2012-10-121-20/+7
| | | | | Signed-off-by: Eric Paris <eparis@redhat.com> Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
* audit: remove dirlen argument to audit_compare_dname_pathJeff Layton2012-10-124-10/+5
| | | | | | | All the callers set this to NULL now. Signed-off-by: Jeff Layton <jlayton@redhat.com> Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
* audit: set the name_len in audit_inode for parent lookupsJeff Layton2012-10-128-34/+87
| | | | | | | | | | | | | | | | | | Currently, this gets set mostly by happenstance when we call into audit_inode_child. While that might be a little more efficient, it seems wrong. If the syscall ends up failing before audit_inode_child ever gets called, then you'll have an audit_names record that shows the full path but has the parent inode info attached. Fix this by passing in a parent flag when we call audit_inode that gets set to the value of LOOKUP_PARENT. We can then fix up the pathname for the audit entry correctly from the get-go. While we're at it, clean up the no-op macro for audit_inode in the !CONFIG_AUDITSYSCALL case. Signed-off-by: Jeff Layton <jlayton@redhat.com> Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
* audit: add a new "type" field to audit_names structJeff Layton2012-10-122-5/+15
| | | | | | | | | | | | | For now, we just have two possibilities: UNKNOWN: for a new audit_names record that we don't know anything about yet NORMAL: for everything else In later patches, we'll add other types so we can distinguish and update records created under different circumstances. Signed-off-by: Jeff Layton <jlayton@redhat.com> Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
* audit: reverse arguments to audit_inode_childJeff Layton2012-10-125-19/+19
| | | | | | | | | | | | Most of the callers get called with an inode and dentry in the reverse order. The compiler then has to reshuffle the arg registers and/or stack in order to pass them on to audit_inode_child. Reverse those arguments for a micro-optimization. Reported-by: Eric Paris <eparis@redhat.com> Signed-off-by: Jeff Layton <jlayton@redhat.com> Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
* audit: no need to walk list in audit_inode if name is NULLJeff Layton2012-10-121-1/+5
| | | | | | | | | If name is NULL then the condition in the loop will never be true. Also, with this change, we can eliminate the check for n->name == NULL since the equivalence check will never be true if it is. Signed-off-by: Jeff Layton <jlayton@redhat.com> Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
* audit: pass in dentry to audit_copy_inode wherever possibleJeff Layton2012-10-121-2/+2
| | | | | | | | In some cases, we were passing in NULL even when we have a dentry. Reported-by: Eric Paris <eparis@redhat.com> Signed-off-by: Jeff Layton <jlayton@redhat.com> Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
* audit: remove unnecessary NULL ptr checks from do_path_lookupJeff Layton2012-10-121-6/+2
| | | | | | | | | | As best I can tell, whenever retval == 0, nd->path.dentry and nd->inode are also non-NULL. Eliminate those checks and the superfluous audit_context check. Signed-off-by: Eric Paris <eparis@redhat.com> Signed-off-by: Jeff Layton <jlayton@redhat.com> Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
* Merge branch 'for-linus' of ↵Linus Torvalds2012-10-1239-170/+166
|\ | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | git://git.kernel.org/pub/scm/linux/kernel/git/viro/vfs Pull pile 2 of vfs updates from Al Viro: "Stuff in this one - assorted fixes, lglock tidy-up, death to lock_super(). There'll be a VFS pile tomorrow (with patches from Jeff Layton, sanitizing getname() and related parts of audit and preparing for ESTALE fixes), but I'd rather push the stuff in this one ASAP - some of the bugs closed here are quite unpleasant." * 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/viro/vfs: vfs: bogus warnings in fs/namei.c consitify do_mount() arguments lglock: add DEFINE_STATIC_LGLOCK() lglock: make the per_cpu locks static lglock: remove unused DEFINE_LGLOCK_LOCKDEP() MAX_LFS_FILESIZE definition for 64bit needs LL... tmpfs,ceph,gfs2,isofs,reiserfs,xfs: fix fh_len checking vfs: drop lock/unlock super ufs: drop lock/unlock super sysv: drop lock/unlock super hpfs: drop lock/unlock super fat: drop lock/unlock super ext3: drop lock/unlock super exofs: drop lock/unlock super dup3: Return an error when oldfd == newfd. fs: handle failed audit_log_start properly fs: prevent use after free in auditing when symlink following was denied
| * vfs: bogus warnings in fs/namei.cArnd Bergmann2012-10-111-0/+1
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | The follow_link() function always initializes its *p argument, or returns an error, but when building with 'gcc -s', the compiler gets confused by the __always_inline attribute to the function and can no longer detect where the cookie was initialized. The solution is to always initialize the pointer from follow_link, even in the error path. When building with -O2, this has zero impact on generated code and adds a single instruction in the error path for a -Os build on ARM. Without this patch, building with gcc-4.6 through gcc-4.8 and CONFIG_CC_OPTIMIZE_FOR_SIZE results in: fs/namei.c: In function 'link_path_walk': fs/namei.c:649:24: warning: 'cookie' may be used uninitialized in this function [-Wuninitialized] fs/namei.c:1544:9: note: 'cookie' was declared here fs/namei.c: In function 'path_lookupat': fs/namei.c:649:24: warning: 'cookie' may be used uninitialized in this function [-Wuninitialized] fs/namei.c:1934:10: note: 'cookie' was declared here fs/namei.c: In function 'path_openat': fs/namei.c:649:24: warning: 'cookie' may be used uninitialized in this function [-Wuninitialized] fs/namei.c:2899:9: note: 'cookie' was declared here Signed-off-by: Arnd Bergmann <arnd@arndb.de> Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
| * consitify do_mount() argumentsAl Viro2012-10-1110-26/+27
| | | | | | | | Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
| * lglock: add DEFINE_STATIC_LGLOCK()Lai Jiangshan2012-10-102-2/+8
| | | | | | | | | | | | | | | | | | | | | | | | When the lglock doesn't need to be exported we can use DEFINE_STATIC_LGLOCK(). Signed-off-by: Lai Jiangshan <laijs@cn.fujitsu.com> Cc: Alexander Viro <viro@zeniv.linux.org.uk> Cc: Rusty Russell <rusty@rustcorp.com.au> Cc: Andi Kleen <ak@linux.intel.com> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
| * lglock: make the per_cpu locks staticLai Jiangshan2012-10-101-1/+1
| | | | | | | | | | | | | | | | | | | | | | | | The per_cpu locks are not used outside the file which contains the DEFINE_LGLOCK(), so we can make these symbols static. Signed-off-by: Lai Jiangshan <laijs@cn.fujitsu.com> Cc: Alexander Viro <viro@zeniv.linux.org.uk> Cc: Rusty Russell <rusty@rustcorp.com.au> Cc: Andi Kleen <ak@linux.intel.com> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
| * lglock: remove unused DEFINE_LGLOCK_LOCKDEP()Lai Jiangshan2012-10-101-9/+0
| | | | | | | | | | | | | | | | | | | | | | | | | | struct lglocks use their own lock_key/lock_dep_map which are defined in struct lglock. DEFINE_LGLOCK_LOCKDEP() is unused, so remove it and save a small piece of memory. Signed-off-by: Lai Jiangshan <laijs@cn.fujitsu.com> Cc: Alexander Viro <viro@zeniv.linux.org.uk> Cc: Rusty Russell <rusty@rustcorp.com.au> Cc: Andi Kleen <ak@linux.intel.com> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
| * MAX_LFS_FILESIZE definition for 64bit needs LL...Al Viro2012-10-101-1/+1
| | | | | | | | Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
| * tmpfs,ceph,gfs2,isofs,reiserfs,xfs: fix fh_len checkingHugh Dickins2012-10-096-8/+31
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Fuzzing with trinity oopsed on the 1st instruction of shmem_fh_to_dentry(), u64 inum = fid->raw[2]; which is unhelpfully reported as at the end of shmem_alloc_inode(): BUG: unable to handle kernel paging request at ffff880061cd3000 IP: [<ffffffff812190d0>] shmem_alloc_inode+0x40/0x40 Oops: 0000 [#1] PREEMPT SMP DEBUG_PAGEALLOC Call Trace: [<ffffffff81488649>] ? exportfs_decode_fh+0x79/0x2d0 [<ffffffff812d77c3>] do_handle_open+0x163/0x2c0 [<ffffffff812d792c>] sys_open_by_handle_at+0xc/0x10 [<ffffffff83a5f3f8>] tracesys+0xe1/0xe6 Right, tmpfs is being stupid to access fid->raw[2] before validating that fh_len includes it: the buffer kmalloc'ed by do_sys_name_to_handle() may fall at the end of a page, and the next page not be present. But some other filesystems (ceph, gfs2, isofs, reiserfs, xfs) are being careless about fh_len too, in fh_to_dentry() and/or fh_to_parent(), and could oops in the same way: add the missing fh_len checks to those. Reported-by: Sasha Levin <levinsasha928@gmail.com> Signed-off-by: Hugh Dickins <hughd@google.com> Cc: Al Viro <viro@zeniv.linux.org.uk> Cc: Sage Weil <sage@inktank.com> Cc: Steven Whitehouse <swhiteho@redhat.com> Cc: Christoph Hellwig <hch@infradead.org> Cc: stable@vger.kernel.org Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
| * vfs: drop lock/unlock superMarco Stornelli2012-10-092-24/+0
| | | | | | | | | | | | | | Removed s_lock from super_block and removed lock/unlock super. Signed-off-by: Marco Stornelli <marco.stornelli@gmail.com> Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
| * ufs: drop lock/unlock superMarco Stornelli2012-10-094-33/+35
| | | | | | | | | | | | | | Removed lock/unlock super. Added a new private s_lock mutex. Signed-off-by: Marco Stornelli <marco.stornelli@gmail.com> Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
| * sysv: drop lock/unlock superMarco Stornelli2012-10-095-18/+20
| | | | | | | | | | | | | | Removed lock/unlock super. Added a new private s_lock mutex. Signed-off-by: Marco Stornelli <marco.stornelli@gmail.com> Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
| * hpfs: drop lock/unlock superMarco Stornelli2012-10-091-3/+0
| | | | | | | | | | | | | | | | Removed lock/unlock super. Signed-off-by: Marco Stornelli <marco.stornelli@gmail.com> Acked-by: Mikulas Patocka <mikulas@artax.karlin.mff.cuni.cz> Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
| * fat: drop lock/unlock superMarco Stornelli2012-10-095-34/+36
| | | | | | | | | | | | | | Removed lock/unlock super. Added a new private s_lock mutex. Signed-off-by: Marco Stornelli <marco.stornelli@gmail.com> Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
| * ext3: drop lock/unlock superMarco Stornelli2012-10-091-6/+0
| | | | | | | | | | | | | | | | Removed lock/unlock super. Signed-off-by: Marco Stornelli <marco.stornelli@gmail.com> Reviewed-by: Jan Kara <jack@suse.cz> Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
| * exofs: drop lock/unlock superMarco Stornelli2012-10-091-4/+0
| | | | | | | | | | | | | | | | | | Removed lock/unlock super. Acked-by: Artem Bityutskiy <artem.bityutskiy@linux.intel.com> Acked-by: Boaz Harrosh <bharrosh@panasas.com> Signed-off-by: Marco Stornelli <marco.stornelli@gmail.com> Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
| * dup3: Return an error when oldfd == newfd.Richard W.M. Jones2012-10-091-0/+3
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | I have tested the attached patch to fix the dup3 regression. Rich. From 0944e30e12dec6544b3602626b60ff412375c78f Mon Sep 17 00:00:00 2001 From: "Richard W.M. Jones" <rjones@redhat.com> Date: Tue, 9 Oct 2012 14:42:45 +0100 Subject: [PATCH] dup3: Return an error when oldfd == newfd. The following commit: commit fe17f22d7fd0e344ef6447238f799bb49f670c6f Author: Al Viro <viro@zeniv.linux.org.uk> Date: Tue Aug 21 11:48:11 2012 -0400 take purely descriptor-related stuff from fcntl.c to file.c was supposed to be just code motion, but it dropped the following two lines: if (unlikely(oldfd == newfd)) return -EINVAL; from the dup3 system call. dup3 is not specified by POSIX, so Linux can do what it likes. However the POSIX proposal for dup3 [1] states that it should return an error if oldfd == newfd. [1] http://austingroupbugs.net/view.php?id=411 Signed-off-by: Richard W.M. Jones <rjones@redhat.com> Tested-by: Richard W.M. Jones <rjones@redhat.com> Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
| * fs: handle failed audit_log_start properlySasha Levin2012-10-091-0/+2
| | | | | | | | | | | | | | | | | | | | audit_log_start() may return NULL, this is unchecked by the caller in audit_log_link_denied() and could cause a NULL ptr deref. Introduced by commit a51d9eaa ("fs: add link restriction audit reporting"). Signed-off-by: Sasha Levin <sasha.levin@oracle.com> Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
| * fs: prevent use after free in auditing when symlink following was deniedSasha Levin2012-10-091-1/+1
| | | | | | | | | | | | | | | | | | Commit "fs: add link restriction audit reporting" has added auditing of failed attempts to follow symlinks. Unfortunately, the auditing was being done after the struct path structure was released earlier. Signed-off-by: Sasha Levin <sasha.levin@oracle.com> Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
* | Merge branch 'for-linus' of ↵Linus Torvalds2012-10-1299-882/+344
|\ \ | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | git://git.kernel.org/pub/scm/linux/kernel/git/viro/signal Pull pile 2 of execve and kernel_thread unification work from Al Viro: "Stuff in there: kernel_thread/kernel_execve/sys_execve conversions for several more architectures plus assorted signal fixes and cleanups. There'll be more (in particular, real fixes for the alpha do_notify_resume() irq mess)..." * 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/viro/signal: (43 commits) alpha: don't open-code trace_report_syscall_{enter,exit} Uninclude linux/freezer.h m32r: trim masks avr32: trim masks tile: don't bother with SIGTRAP in setup_frame microblaze: don't bother with SIGTRAP in setup_rt_frame() mn10300: don't bother with SIGTRAP in setup_frame() frv: no need to raise SIGTRAP in setup_frame() x86: get rid of duplicate code in case of CONFIG_VM86 unicore32: remove pointless test h8300: trim _TIF_WORK_MASK parisc: decide whether to go to slow path (tracesys) based on thread flags parisc: don't bother looping in do_signal() parisc: fix double restarts bury the rest of TIF_IRET sanitize tsk_is_polling() bury _TIF_RESTORE_SIGMASK unicore32: unobfuscate _TIF_WORK_MASK mips: NOTIFY_RESUME is not needed in TIF masks mips: merge the identical "return from syscall" per-ABI code ... Conflicts: arch/arm/include/asm/thread_info.h
| * | alpha: don't open-code trace_report_syscall_{enter,exit}Al Viro2012-10-012-26/+19
| | | | | | | | | | | | Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
| * | Uninclude linux/freezer.hRichard Weinberger2012-10-0112-12/+0
| | | | | | | | | | | | | | | | | | | | | | | | This include is no longer needed. (seems to be a leftover from try_to_freeze()) Signed-off-by: Richard Weinberger <richard@nod.at> Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
| * | m32r: trim masksAl Viro2012-10-011-2/+2
| | | | | | | | | | | | Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
| * | avr32: trim masksAl Viro2012-10-011-7/+6
| | | | | | | | | | | | Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
| * | tile: don't bother with SIGTRAP in setup_frameAl Viro2012-10-012-19/+2
| | | | | | | | | | | | | | | | | | Tell signal_delivered() to do it instead. Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
| * | microblaze: don't bother with SIGTRAP in setup_rt_frame()Al Viro2012-10-011-5/+2
| | | | | | | | | | | | Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
| * | mn10300: don't bother with SIGTRAP in setup_frame()Al Viro2012-10-011-8/+0
| | | | | | | | | | | | | | | | | | ... just tell signal_delivered() to do it. Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
| * | frv: no need to raise SIGTRAP in setup_frame()Al Viro2012-10-011-8/+0
| | | | | | | | | | | | | | | | | | signal_delivered() will do it in the same case... Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
| * | x86: get rid of duplicate code in case of CONFIG_VM86Al Viro2012-10-011-11/+6
| | | | | | | | | | | | | | | | | | | | | | | | no need to have the call of do_notify_resume() + checks around it duplicated for vm86 case - a bit of rearranging of ifdefs and we'll have a perfectly fine copy to jump back to. Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
| * | unicore32: remove pointless testAl Viro2012-10-011-2/+0
| | | | | | | | | | | | | | | | | | | | | | | | we can get into work_pending only if at least one of NEED_RESCHED, SIGPENDING or NOTIFY_RESUME is set. So once we'd found no NEED_RESCHED, there's no need to check that one of the other two is set. Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
| * | h8300: trim _TIF_WORK_MASKAl Viro2012-10-011-1/+2
| | | | | | | | | | | | | | | | | | | | | Only the three usual flags (NEED_RESCHED/SIGPENDING/NOTIFY_RESUME) are looked at in the code checking _TIF_WORK_MASK on that one. Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
| * | parisc: decide whether to go to slow path (tracesys) based on thread flagsAl Viro2012-10-012-3/+6
| | | | | | | | | | | | Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
| * | parisc: don't bother looping in do_signal()Al Viro2012-10-011-22/+7
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | entry.S code had been looping until no pending signals are left since 2005 anyway; no need to bother with that in do_signal() itself. If the failure to set a sigframe up raises SIGSEGV, we'll just pick it up the next time around the loop(s) in entry.S anyway. Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
| * | parisc: fix double restartsAl Viro2012-10-013-10/+10
| | | | | | | | | | | | | | | | | | | | | | | | Don't bother restoring r28 on syscall restarts; it's clobbered by syscall anyway. Reuse (now unused) ->orig_r28 as "no restarts allowed" flag. Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
| * | bury the rest of TIF_IRETAl Viro2012-10-015-10/+0
| | | | | | | | | | | | | | | | | | Some architectures had blindly copied it for no reason whatsoever. Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
| * | sanitize tsk_is_polling()Al Viro2012-10-0126-38/+20
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Make default just return 0. The current default (checking TIF_POLLING_NRFLAG) is taken to architectures that need it; ones that don't do polling in their idle threads don't need to defined TIF_POLLING_NRFLAG at all. ia64 defined both TS_POLLING (used by its tsk_is_polling()) and TIF_POLLING_NRFLAG (not used at all). Killed the latter... Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
| * | bury _TIF_RESTORE_SIGMASKAl Viro2012-10-0117-17/+0
| | | | | | | | | | | | | | | | | | never used... Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
generated by cgit v1.2.3 (git 2.25.1) at 2024-12-01 06:41:59 +0000