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* configfs: Zero terminate data in configfs attribute writes.Joel Becker2007-02-07
| | | | | | | | | | | | | | Attributes in configfs are text files. As such, most handlers expect to be able to call functions like simple_strtoul() without checking the bounds of the buffer. Change the call to zero terminate the buffer before calling the client's ->store() method. This does reduce the attribute size from PAGE_SIZE to PAGE_SIZE-1. Also, change get_zeroed_page() to alloc_page(), as we are handling the termination. Signed-off-by: Joel Becker <joel.becker@oracle.com> Signed-off-by: Mark Fasheh <mark.fasheh@oracle.com>
* [PATCH] configfs: change uses of f_{dentry, vfsmnt} to use f_pathJosef "Jeff" Sipek2006-12-08
| | | | | | | | | Change all the uses of f_{dentry,vfsmnt} to f_path.{dentry,mnt} in the configfs filesystem. Signed-off-by: Josef "Jeff" Sipek <jsipek@cs.sunysb.edu> Signed-off-by: Andrew Morton <akpm@osdl.org> Signed-off-by: Linus Torvalds <torvalds@osdl.org>
* [PATCH] slab: remove kmem_cache_tChristoph Lameter2006-12-07
| | | | | | | | | | | | | | | | | | | | | | | | | | | | Replace all uses of kmem_cache_t with struct kmem_cache. The patch was generated using the following script: #!/bin/sh # # Replace one string by another in all the kernel sources. # set -e for file in `find * -name "*.c" -o -name "*.h"|xargs grep -l $1`; do quilt add $file sed -e "1,\$s/$1/$2/g" $file >/tmp/$$ mv /tmp/$$ $file quilt refresh done The script was run like this sh replace kmem_cache_t "struct kmem_cache" Signed-off-by: Christoph Lameter <clameter@sgi.com> Signed-off-by: Andrew Morton <akpm@osdl.org> Signed-off-by: Linus Torvalds <torvalds@osdl.org>
* configfs: make configfs_dirent_exists() staticAdrian Bunk2006-12-01
| | | | | | | | This patch makes the needlessly global configfs_dirent_exists() static. Signed-off-by: Adrian Bunk <bunk@stusta.de> Signed-off-by: Joel Becker <joel.becker@oracle.com> Signed-off-by: Mark Fasheh <mark.fasheh@oracle.com>
* configfs: mutex_lock_nested() fixMark Fasheh2006-12-01
| | | | | | | configfs_unregister_subsystem() nests a pair of inode i_mutex acquisitions, and thus needs annotation via mutex_lock_nested(). Signed-off-by: Mark Fasheh <mark.fasheh@oracle.com>
* configfs: handle kzalloc() failure in check_perm()Chandra Seetharaman2006-10-20
| | | | | | | | | check_perm() does not drop the reference to the module when kzalloc() failure occurs. Signed-Off-By: Chandra Seetharaman <sekharan@us.ibm.com> Signed-off-by: Joel Becker <joel.becker@oracle.com> Signed-off-by: Mark Fasheh <mark.fasheh@oracle.com>
* Merge git://git.kernel.org/pub/scm/linux/kernel/git/steve/gfs2-2.6Linus Torvalds2006-10-04
|\ | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | * git://git.kernel.org/pub/scm/linux/kernel/git/steve/gfs2-2.6: (292 commits) [GFS2] Fix endian bug for de_type [GFS2] Initialize SELinux extended attributes at inode creation time. [GFS2] Move logging code into log.c (mostly) [GFS2] Mark nlink cleared so VFS sees it happen [GFS2] Two redundant casts removed [GFS2] Remove uneeded endian conversion [GFS2] Remove duplicate sb reading code [GFS2] Mark metadata reads for blktrace [GFS2] Remove iflags.h, use FS_ [GFS2] Fix code style/indent in ops_file.c [GFS2] streamline-generic_file_-interfaces-and-filemap gfs fix [GFS2] Remove readv/writev methods and use aio_read/aio_write instead (gfs bits) [GFS2] inode-diet: Eliminate i_blksize from the inode structure [GFS2] inode_diet: Replace inode.u.generic_ip with inode.i_private (gfs) [GFS2] Fix typo in last patch [GFS2] Fix direct i/o logic in filemap.c [GFS2] Fix bug in Makefiles for lock modules [GFS2] Remove (extra) fs_subsys declaration [GFS2/DLM] Fix trailing whitespace [GFS2] Tidy up meta_io code ...
| * Merge branch 'master' into gfs2Steven Whitehouse2006-10-02
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| * \ Merge branch 'master' into gfs2Steven Whitehouse2006-09-28
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| * \ \ [GFS2] Fix up merge of Linus' kernel into GFS2Steven Whitehouse2006-09-25
| |\ \ \ | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | This fixes up a couple of conflicts when merging up with Linus' latest kernel. This will hopefully allow GFS2 to be more easily merged into forthcoming -mm and FC kernels due to the "one line per header" format now used for the kernel headers. Signed-off-by: Steven Whitehouse <swhiteho@redhat.com> Conflicts: include/linux/Kbuild include/linux/kernel.h
| * \ \ \ Merge rsync://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux-2.6Steven Whitehouse2006-07-03
| |\ \ \ \ | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Conflicts: include/linux/kernel.h
| * \ \ \ \ Merge branch 'master'Steven Whitehouse2006-05-25
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| * \ \ \ \ \ Merge branch 'master'Steven Whitehouse2006-04-21
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| * \ \ \ \ \ \ Merge branch 'master'Steven Whitehouse2006-03-31
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| * \ \ \ \ \ \ \ Merge branch 'master'Steven Whitehouse2006-02-23
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| * | | | | | | | | [DLM] Export config_group_find_obj for use by the DLMDavid Teigland2006-01-18
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Signed-off-by: David Teigland <teigland@redhat.com> Signed-off-by: Steven Whitehouse <swhiteho@redhat.com>
* | | | | | | | | | [PATCH] pr_debug: configfs: use size_t length modifier in pr_debug format ↵Zach Brown2006-10-03
| |_|_|_|_|_|_|_|/ |/| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | argument configfs: use size_t length modifier in pr_debug format argument Signed-off-by: Zach Brown <zach.brown@oracle.com> Acked-by: Joel Becker <joel.becker@oracle.com> Signed-off-by: Andrew Morton <akpm@osdl.org> Signed-off-by: Linus Torvalds <torvalds@osdl.org>
* | | | | | | | | [PATCH] r/o bind mount prepwork: inc_nlink() helperDave Hansen2006-10-01
| |_|_|_|_|_|_|/ |/| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | This is mostly included for parity with dec_nlink(), where we will have some more hooks. This one should stay pretty darn straightforward for now. Signed-off-by: Dave Hansen <haveblue@us.ibm.com> Acked-by: Christoph Hellwig <hch@lst.de> 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] inode-diet: Eliminate i_blksize from the inode structureTheodore Ts'o2006-09-27
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | This eliminates the i_blksize field from struct inode. Filesystems that want to provide a per-inode st_blksize can do so by providing their own getattr routine instead of using the generic_fillattr() function. Note that some filesystems were providing pretty much random (and incorrect) values for i_blksize. [bunk@stusta.de: cleanup] [akpm@osdl.org: generic_fillattr() fix] Signed-off-by: "Theodore Ts'o" <tytso@mit.edu> Signed-off-by: Adrian Bunk <bunk@stusta.de> Signed-off-by: Andrew Morton <akpm@osdl.org> Signed-off-by: Linus Torvalds <torvalds@osdl.org>
* | | | | | | | [PATCH] fs: Conversions from kmalloc+memset to k(z|c)allocPanagiotis Issaris2006-09-27
| |_|_|_|_|_|/ |/| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Conversions from kmalloc+memset to kzalloc. Signed-off-by: Panagiotis Issaris <takis@issaris.org> Jffs2-bit-acked-by: David Woodhouse <dwmw2@infradead.org> Signed-off-by: Andrew Morton <akpm@osdl.org> Signed-off-by: Linus Torvalds <torvalds@osdl.org>
* | | | | | | configfs: Prevent duplicate subsystem names.Joel Becker2006-09-20
| |_|_|_|_|/ |/| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | For all child objects, creation comes through mkdir(2), so duplicate names are prevented. Subsystems, though, are registered by client drivers at init_module()/__init time. This patch prevents duplicate subsystem names. Signed-off-by: Joel Becker <joel.becker@oracle.com> Signed-off-by: Mark Fasheh <mark.fasheh@oracle.com>
* | | | | | configfs: Clear up a few extra spaces where there should be TABs.Joel Becker2006-06-29
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Signed-off-by: Joel Becker <joel.becker@oracle.com> Signed-off-by: Mark Fasheh <mark.fasheh@oracle.com>
* | | | | | [PATCH] mark address_space_operations constChristoph Hellwig2006-06-28
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Same as with already do with the file operations: keep them in .rodata and prevents people from doing runtime patching. Signed-off-by: Christoph Hellwig <hch@lst.de> Cc: Steven French <sfrench@us.ibm.com> Signed-off-by: Andrew Morton <akpm@osdl.org> Signed-off-by: Linus Torvalds <torvalds@osdl.org>
* | | | | | [PATCH] fs: use list_move()Akinobu Mita2006-06-26
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | This patch converts the combination of list_del(A) and list_add(A, B) to list_move(A, B) under fs/. Cc: Ian Kent <raven@themaw.net> Acked-by: Joel Becker <joel.becker@oracle.com> Cc: Neil Brown <neilb@cse.unsw.edu.au> Cc: Hans Reiser <reiserfs-dev@namesys.com> Cc: Urban Widmark <urban@teststation.com> Acked-by: David Howells <dhowells@redhat.com> Acked-by: Mark Fasheh <mark.fasheh@oracle.com> Signed-off-by: Akinobu Mita <mita@miraclelinux.com> Signed-off-by: Andrew Morton <akpm@osdl.org> Signed-off-by: Linus Torvalds <torvalds@osdl.org>
* | | | | | Merge branch 'master' of /home/trondmy/kernel/linux-2.6/Trond Myklebust2006-06-24
|\ \ \ \ \ \ | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Conflicts: fs/nfs/inode.c fs/super.c Fix conflicts between patch 'NFS: Split fs/nfs/inode.c' and patch 'VFS: Permit filesystem to override root dentry on mount'
| * | | | | | [PATCH] VFS: Permit filesystem to override root dentry on mountDavid Howells2006-06-23
| | |_|_|_|/ | |/| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Extend the get_sb() filesystem operation to take an extra argument that permits the VFS to pass in the target vfsmount that defines the mountpoint. The filesystem is then required to manually set the superblock and root dentry pointers. For most filesystems, this should be done with simple_set_mnt() which will set the superblock pointer and then set the root dentry to the superblock's s_root (as per the old default behaviour). The get_sb() op now returns an integer as there's now no need to return the superblock pointer. This patch permits a superblock to be implicitly shared amongst several mount points, such as can be done with NFS to avoid potential inode aliasing. In such a case, simple_set_mnt() would not be called, and instead the mnt_root and mnt_sb would be set directly. The patch also makes the following changes: (*) the get_sb_*() convenience functions in the core kernel now take a vfsmount pointer argument and return an integer, so most filesystems have to change very little. (*) If one of the convenience function is not used, then get_sb() should normally call simple_set_mnt() to instantiate the vfsmount. This will always return 0, and so can be tail-called from get_sb(). (*) generic_shutdown_super() now calls shrink_dcache_sb() to clean up the dcache upon superblock destruction rather than shrink_dcache_anon(). This is required because the superblock may now have multiple trees that aren't actually bound to s_root, but that still need to be cleaned up. The currently called functions assume that the whole tree is rooted at s_root, and that anonymous dentries are not the roots of trees which results in dentries being left unculled. However, with the way NFS superblock sharing are currently set to be implemented, these assumptions are violated: the root of the filesystem is simply a dummy dentry and inode (the real inode for '/' may well be inaccessible), and all the vfsmounts are rooted on anonymous[*] dentries with child trees. [*] Anonymous until discovered from another tree. (*) The documentation has been adjusted, including the additional bit of changing ext2_* into foo_* in the documentation. [akpm@osdl.org: convert ipath_fs, do other stuff] Signed-off-by: David Howells <dhowells@redhat.com> Acked-by: Al Viro <viro@zeniv.linux.org.uk> Cc: Nathan Scott <nathans@sgi.com> Cc: Roland Dreier <rolandd@cisco.com> Signed-off-by: Andrew Morton <akpm@osdl.org> Signed-off-by: Linus Torvalds <torvalds@osdl.org>
* / | | | | VFS: Unexport do_kern_mount() and clean up simple_pin_fs()Trond Myklebust2006-06-09
|/ / / / / | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Replace all module uses with the new vfs_kern_mount() interface, and fix up simple_pin_fs(). Signed-off-by: Trond Myklebust <Trond.Myklebust@netapp.com>
* | | | | configfs: configfs_mkdir() failed to cleanup linkage.Joel Becker2006-05-17
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | If configfs_mkdir() errored in certain ways after the parent<->child linkage was already created, it would not undo the linkage. Also, comment the reference counting for clarity. Signed-off-by: Joel Becker <joel.becker@oracle.com> Signed-off-by: Mark Fasheh <mark.fasheh@oracle.com>
* | | | | configfs: Fix a reference leak in configfs_mkdir().Joel Becker2006-05-17
| |_|_|/ |/| | | | | | | | | | | | | | | | | | | | | | | | | | | configfs_mkdir() failed to release the working parent reference in most exit paths. Also changed the exit path for readability. Signed-off-by: Joel Becker <joel.becker@oracle.com> Signed-off-by: Mark Fasheh <mark.fasheh@oracle.com>
* | | | [PATCH] Bogus NULL pointer check in fs/configfs/dir.cEric Sesterhenn2006-04-10
| |_|/ |/| | | | | | | | | | | | | | | | | | | | We check the "group" pointer after we dereference it. This check is bogus, as it cannot be NULL coming in. Signed-off-by: Joel Becker <joel.becker@oracle.com> Signed-off-by: Mark Fasheh <mark.fasheh@oracle.com>
* | | [PATCH] Make most file operations structs in fs/ constArjan van de Ven2006-03-28
| |/ |/| | | | | | | | | | | | | | | | | | | | | | | | | 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] BUG_ON() Conversion in fs/configfs/Eric Sesterhenn / snakebyte2006-02-03
| | | | | | | | | | | | | | | | | | this changes if() BUG(); constructs to BUG_ON() which is cleaner, contains unlikely() and can better optimized away. Signed-off-by: Eric Sesterhenn <snakebyte@gmx.de> Signed-off-by: Joel Becker <joel.becker@oracle.com> Signed-off-by: Mark Fasheh <mark.fasheh@oracle.com>
* | configfs: Add permission and ownership to configfs objects.Joel Becker2006-02-03
|/ | | | | | | | | | configfs always made item and attribute ownership root.root and permissions based on a umask of 022. Add ->setattr() to allow chown(2)/chmod(2), and persist the changes for the lifetime of the items and attributes. Signed-off-by: Joel Becker <joel.becker@oracle.com> Signed-off-by: Mark Fasheh <mark.fasheh@oracle.com>
* [PATCH] mutex subsystem, semaphore to mutex: VFS, ->i_semJes Sorensen2006-01-09
| | | | | | | | | | | | | This patch converts the inode semaphore to a mutex. I have tested it on XFS and compiled as much as one can consider on an ia64. Anyway your luck with it might be different. Modified-by: Ingo Molnar <mingo@elte.hu> (finished the conversion) Signed-off-by: Jes Sorensen <jes@sgi.com> Signed-off-by: Ingo Molnar <mingo@elte.hu>
* [PATCH] configfs: User-driven configuration filesystemJoel Becker2006-01-03
Configfs, a file system for userspace-driven kernel object configuration. The OCFS2 stack makes extensive use of this for propagation of cluster configuration information into kernel. Signed-off-by: Joel Becker <joel.becker@oracle.com>
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