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* bad_inode: add missing i_op initializersMiklos Szeredi2017-01-091-4/+51
| | | | | | | | | | | | | | | | | | commit 3f9ca75516a7e581ff803f751a869c1da5ae5fa5 upstream. New inode operations were forgotten to be added to bad_inode. Most of the time the op is checked for NULL before being called but marking the inode bad and the check can race (very unlikely). However in case of ->get_link() only DCACHE_SYMLINK_TYPE is checked before calling the op, so there's no race and will definitely oops when trying to follow links on such a beast. Also remove comments about extinct ops. Signed-off-by: Miklos Szeredi <mszeredi@redhat.com> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
* Merge branch 'for-linus' of ↵Linus Torvalds2016-10-101-2/+2
|\ | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | git://git.kernel.org/pub/scm/linux/kernel/git/viro/vfs Pull more vfs updates from Al Viro: ">rename2() work from Miklos + current_time() from Deepa" * 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/viro/vfs: fs: Replace current_fs_time() with current_time() fs: Replace CURRENT_TIME_SEC with current_time() for inode timestamps fs: Replace CURRENT_TIME with current_time() for inode timestamps fs: proc: Delete inode time initializations in proc_alloc_inode() vfs: Add current_time() api vfs: add note about i_op->rename changes to porting fs: rename "rename2" i_op to "rename" vfs: remove unused i_op->rename fs: make remaining filesystems use .rename2 libfs: support RENAME_NOREPLACE in simple_rename() fs: support RENAME_NOREPLACE for local filesystems ncpfs: fix unused variable warning
| * Merge remote-tracking branch 'ovl/rename2' into for-linusAl Viro2016-10-101-1/+1
| |\
| | * fs: rename "rename2" i_op to "rename"Miklos Szeredi2016-09-271-1/+1
| | | | | | | | | | | | | | | | | | | | | | | | | | | Generated patch: sed -i "s/\.rename2\t/\.rename\t\t/" `git grep -wl rename2` sed -i "s/\brename2\b/rename/g" `git grep -wl rename2` Signed-off-by: Miklos Szeredi <mszeredi@redhat.com>
| * | fs: Replace current_fs_time() with current_time()Deepa Dinamani2016-09-271-1/+1
| |/ | | | | | | | | | | | | | | | | | | | | | | | | | | | | current_fs_time() uses struct super_block* as an argument. As per Linus's suggestion, this is changed to take struct inode* as a parameter instead. This is because the function is primarily meant for vfs inode timestamps. Also the function was renamed as per Arnd's suggestion. Change all calls to current_fs_time() to use the new current_time() function instead. current_fs_time() will be deleted. Signed-off-by: Deepa Dinamani <deepa.kernel@gmail.com> Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
* / vfs: Use IOP_XATTR flag for bad-inode handlingAndreas Gruenbacher2016-10-071-20/+1
|/ | | | | | | | | With this change, all the xattr handler based operations will produce an -EIO result for bad inodes, and we no longer only depend on inode->i_op to be set to bad_inode_ops. Signed-off-by: Andreas Gruenbacher <agruenba@redhat.com> Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
* switch ->setxattr() to passing dentry and inode separatelyAl Viro2016-05-271-2/+2
| | | | | | | | | | | | | | | | smack ->d_instantiate() uses ->setxattr(), so to be able to call it before we'd hashed the new dentry and attached it to inode, we need ->setxattr() instances getting the inode as an explicit argument rather than obtaining it from dentry. Similar change for ->getxattr() had been done in commit ce23e64. Unlike ->getxattr() (which is used by both selinux and smack instances of ->d_instantiate()) ->setxattr() is used only by smack one and unfortunately it got missed back then. Reported-by: Seung-Woo Kim <sw0312.kim@samsung.com> Tested-by: Casey Schaufler <casey@schaufler-ca.com> Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
* ->getxattr(): pass dentry and inode as separate argumentsAl Viro2016-04-111-2/+2
| | | | Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
* fs/bad_inode.c: is_bad_inode can be booleanYaowei Bai2015-12-061-1/+1
| | | | | | | | | | | This patch makes is_bad_inode return bool to improve readability due to this particular function only using either one or zero as its return value. No functional change. Signed-off-by: Yaowei Bai <baiyaowei@cmss.chinamobile.com> Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
* don't bother with most of the bad_file_ops methodsAl Viro2015-02-201-147/+0
| | | | | | | | Only ->open() should be there (always failing, of course). We never replace ->f_op of an already opened struct file, so there's no way for any of those methods to be called. Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
* bad_inode: add ->rename2()Miklos Szeredi2014-08-071-3/+4
| | | | | | | | so we return -EIO instead of -EINVAL. Signed-off-by: Miklos Szeredi <mszeredi@suse.cz> Signed-off-by: Christoph Hellwig <hch@lst.de> Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
* [readdir] ->readdir() is goneAl Viro2013-06-291-2/+2
| | | | | | everything's converted to ->iterate() Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
* lseek: the "whence" argument is called "whence"Andrew Morton2012-12-171-1/+1
| | | | | | | | | But the kernel decided to call it "origin" instead. Fix most of the sites. Acked-by: Hugh Dickins <hughd@google.com> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
* don't pass nameidata to ->create()Al Viro2012-07-141-1/+1
| | | | | | | | boolean "does it have to be exclusive?" flag is passed instead; Local filesystem should just ignore it - the object is guaranteed not to be there yet. Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
* stop passing nameidata to ->lookup()Al Viro2012-07-141-1/+1
| | | | | | | | | Just the flags; only NFS cares even about that, but there are legitimate uses for such argument. And getting rid of that completely would require splitting ->lookup() into a couple of methods (at least), so let's leave that alone for now... Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
* mm/fs: remove truncate_rangeHugh Dickins2012-05-291-1/+0
| | | | | | | | | | | | | | | | | | Remove vmtruncate_range(), and remove the truncate_range method from struct inode_operations: only tmpfs ever supported it, and tmpfs has now converted over to using the fallocate method of file_operations. Update Documentation accordingly, adding (setlease and) fallocate lines. And while we're in mm.h, remove duplicate declarations of shmem_lock() and shmem_file_setup(): everyone is now using the ones in shmem_fs.h. Based-on-patch-by: Cong Wang <amwang@redhat.com> Signed-off-by: Hugh Dickins <hughd@google.com> Cc: Christoph Hellwig <hch@infradead.org> Cc: Cong Wang <amwang@redhat.com> Cc: Al Viro <viro@zeniv.linux.org.uk> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
* fs: reduce the use of module.h wherever possiblePaul Gortmaker2012-02-281-1/+1
| | | | | | | | | | For files only using THIS_MODULE and/or EXPORT_SYMBOL, map them onto including export.h -- or if the file isn't even using those, then just delete the include. Fix up any implicit include dependencies that were being masked by module.h along the way. Signed-off-by: Paul Gortmaker <paul.gortmaker@windriver.com>
* switch ->mknod() to umode_tAl Viro2012-01-031-1/+1
| | | | Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
* switch ->create() to umode_tAl Viro2012-01-031-1/+1
| | | | | | | | vfs_create() ignores everything outside of 16bit subset of its mode argument; switching it to umode_t is obviously equivalent and it's the only caller of the method Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
* switch vfs_mkdir() and ->mkdir() to umode_tAl Viro2012-01-031-1/+1
| | | | | | | vfs_mkdir() gets int, but immediately drops everything that might not fit into umode_t and that's the only caller of ->mkdir()... Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
* fs: push i_mutex and filemap_write_and_wait down into ->fsync() handlersJosef Bacik2011-07-201-1/+2
| | | | | | | | | | | | | | | Btrfs needs to be able to control how filemap_write_and_wait_range() is called in fsync to make it less of a painful operation, so push down taking i_mutex and the calling of filemap_write_and_wait() down into the ->fsync() handlers. Some file systems can drop taking the i_mutex altogether it seems, like ext3 and ocfs2. For correctness sake I just pushed everything down in all cases to make sure that we keep the current behavior the same for everybody, and then each individual fs maintainer can make up their mind about what to do from there. Thanks, Acked-by: Jan Kara <jack@suse.cz> Signed-off-by: Josef Bacik <josef@redhat.com> Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
* ->permission() sanitizing: don't pass flags to ->permission()Al Viro2011-07-201-1/+1
| | | | | | not used by the instances anymore. Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
* bad_inode_permission() is safe from RCU modeAl Viro2011-06-201-3/+0
| | | | | | | return -EIO; is *not* a blocking operation, thank you very much. Nick, what the hell have you been smoking? Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
* fs: provide rcu-walk aware permission i_opsNick Piggin2011-01-071-1/+4
| | | | Signed-off-by: Nick Piggin <npiggin@kernel.dk>
* bkl: Remove locked .ioctl file operationArnd Bergmann2010-08-141-7/+0
| | | | | | | | | | The last user is gone, so we can safely remove this Signed-off-by: Arnd Bergmann <arnd@arndb.de> Cc: John Kacur <jkacur@redhat.com> Cc: Al Viro <viro@ZenIV.linux.org.uk> Cc: Thomas Gleixner <tglx@linutronix.de> Signed-off-by: Frederic Weisbecker <fweisbec@gmail.com>
* drop unused dentry argument to ->fsyncChristoph Hellwig2010-05-271-2/+1
| | | | | Signed-off-by: Christoph Hellwig <hch@lst.de> Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
* kill ->dir_notify()Al Viro2008-12-311-6/+0
| | | | | | | | | | | Remove the hopelessly misguided ->dir_notify(). The only instance (cifs) has been broken by design from the very beginning; the objects it creates are never destroyed, keep references to struct file they can outlive, nothing that could possibly evict them exists on close(2) path *and* no locking whatsoever is done to prevent races with close(), should the previous, er, deficiencies someday be dealt with. Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
* [PATCH] sanitize ->permission() prototypeAl Viro2008-07-261-2/+1
| | | | | | | | | | | | | | | * kill nameidata * argument; map the 3 bits in ->flags anybody cares about to new MAY_... ones and pass with the mask. * kill redundant gfs2_iop_permission() * sanitize ecryptfs_permission() * fix remaining places where ->permission() instances might barf on new MAY_... found in mask. The obvious next target in that direction is permission(9) folded fix for nfs_permission() breakage from Miklos Szeredi <mszeredi@suse.cz> Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
* iget: introduce a function to register iget failureDavid Howells2008-02-071-0/+14
| | | | | | | | | | | Introduce a function to register failure in an inode construction path. This includes marking the inode under construction as bad, unlocking it and releasing it. Signed-off-by: David Howells <dhowells@redhat.com> Acked-by: Christoph Hellwig <hch@lst.de> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
* sendfile: remove bad_sendfile() from bad_file_opsJens Axboe2007-07-101-7/+0
| | | | | | | do_sendfile() prefers splice over sendfile, so it should not trigger (directly, at least). Signed-off-by: Jens Axboe <jens.axboe@oracle.com>
* header cleaning: don't include smp_lock.h when not usedRandy Dunlap2007-05-081-1/+0
| | | | | | | | | | | | Remove includes of <linux/smp_lock.h> where it is not used/needed. Suggested by Al Viro. Builds cleanly on x86_64, i386, alpha, ia64, powerpc, sparc, sparc64, and arm (all 59 defconfigs). Signed-off-by: Randy Dunlap <randy.dunlap@oracle.com> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
* [PATCH] mark struct inode_operations const 1Arjan van de Ven2007-02-121-1/+1
| | | | | | | | | | | Many struct inode_operations in the kernel can be "const". Marking them const moves these to the .rodata section, which avoids false sharing with potential dirty data. In addition it'll catch accidental writes at compile time to these shared resources. Signed-off-by: Arjan van de Ven <arjan@linux.intel.com> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
* [PATCH] fix memory corruption from misinterpreted bad_inode_ops return valuesEric Sandeen2007-01-051-41/+289
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | CVE-2006-5753 is for a case where an inode can be marked bad, switching the ops to bad_inode_ops, which are all connected as: static int return_EIO(void) { return -EIO; } #define EIO_ERROR ((void *) (return_EIO)) static struct inode_operations bad_inode_ops = { .create = bad_inode_create ...etc... The problem here is that the void cast causes return types to not be promoted, and for ops such as listxattr which expect more than 32 bits of return value, the 32-bit -EIO is interpreted as a large positive 64-bit number, i.e. 0x00000000fffffffa instead of 0xfffffffa. This goes particularly badly when the return value is taken as a number of bytes to copy into, say, a user's buffer for example... I originally had coded up the fix by creating a return_EIO_<TYPE> macro for each return type, like this: static int return_EIO_int(void) { return -EIO; } #define EIO_ERROR_INT ((void *) (return_EIO_int)) static struct inode_operations bad_inode_ops = { .create = EIO_ERROR_INT, ...etc... but Al felt that it was probably better to create an EIO-returner for each actual op signature. Since so few ops share a signature, I just went ahead & created an EIO function for each individual file & inode op that returns a value. Signed-off-by: Eric Sandeen <sandeen@redhat.com> Cc: Al Viro <viro@zeniv.linux.org.uk> Signed-off-by: Andrew Morton <akpm@osdl.org> Signed-off-by: Linus Torvalds <torvalds@osdl.org>
* [PATCH] Remove readv/writev methods and use aio_read/aio_write insteadBadari Pulavarty2006-10-011-2/+0
| | | | | | | | | | This patch removes readv() and writev() methods and replaces them with aio_read()/aio_write() methods. Signed-off-by: Badari Pulavarty <pbadari@us.ibm.com> Signed-off-by: Christoph Hellwig <hch@lst.de> Signed-off-by: Andrew Morton <akpm@osdl.org> Signed-off-by: Linus Torvalds <torvalds@osdl.org>
* [PATCH] Make most file operations structs in fs/ constArjan van de Ven2006-03-281-1/+1
| | | | | | | | | | | | | | This is a conversion to make the various file_operations structs in fs/ const. Basically a regexp job, with a few manual fixups The goal is both to increase correctness (harder to accidentally write to shared datastructures) and reducing the false sharing of cachelines with things that get dirty in .data (while .rodata is nicely read only and thus cache clean) Signed-off-by: Arjan van de Ven <arjan@infradead.org> Signed-off-by: Andrew Morton <akpm@osdl.org> Signed-off-by: Linus Torvalds <torvalds@osdl.org>
* [PATCH] make some things staticAdrian Bunk2005-05-051-1/+1
| | | | | | | | | | This patch makes some needlessly global identifiers static. Signed-off-by: Adrian Bunk <bunk@stusta.de> Acked-by: Arjan van de Ven <arjanv@infradead.org> Acked-by: Trond Myklebust <trond.myklebust@fys.uio.no> Signed-off-by: Andrew Morton <akpm@osdl.org> Signed-off-by: Linus Torvalds <torvalds@osdl.org>
* Linux-2.6.12-rc2v2.6.12-rc2Linus Torvalds2005-04-161-0/+123
Initial git repository build. I'm not bothering with the full history, even though we have it. We can create a separate "historical" git archive of that later if we want to, and in the meantime it's about 3.2GB when imported into git - space that would just make the early git days unnecessarily complicated, when we don't have a lot of good infrastructure for it. Let it rip!
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