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2012-01-03omfs: propagate umode_tAl Viro
Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
2012-01-03reiserfs: propagate umode_tAl Viro
Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
2012-01-03xfs: propagate umode_tAl Viro
Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
2012-01-03sysv: propagate umode_tAl Viro
Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
2012-01-03ufs: propagate umode_tAl Viro
Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
2012-01-03minix: propagate umode_tAl Viro
Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
2012-01-03ext4: propagate umode_tAl Viro
Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
2012-01-03ext3: propagate umode_tAl Viro
Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
2012-01-03ext2: propagate umode_tAl Viro
Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
2012-01-039p: don't bother with unixmode2p9mode() for link() and symlink()Al Viro
Pass perm to v9fs_vfs_mkspecial() instead of passing mode; calculate in caller when done for mknod(), use known value for link() and symlink(). As the result, we avoid a bit of work *and* stop mixing mode_t with P9_DMLINK. Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
2012-01-03kill ecryptfs_create_underlying_file()Al Viro
it's a just a wrapper for vfs_create() Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
2012-01-03configfs: convert to umode_tAl Viro
Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
2012-01-03switch debugfs to umode_tAl Viro
Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
2012-01-03switch sysfs_chmod_file() to umode_tAl Viro
Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
2012-01-03switch procfs to umode_t useAl Viro
both proc_dir_entry ->mode and populating functions Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
2012-01-03switch ->is_visible() to returning umode_tAl Viro
Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
2012-01-03hugetlbfs: switch to inode_init_owner()Al Viro
... rather than open-coding it Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
2012-01-03switch ->mknod() to umode_tAl Viro
Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
2012-01-03switch ->create() to umode_tAl Viro
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>
2012-01-03switch vfs_mkdir() and ->mkdir() to umode_tAl Viro
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>
2012-01-03switch sys_mknodat(2) to umode_tAl Viro
Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
2012-01-03fs: move code out of buffer.cAl Viro
Move invalidate_bdev, block_sync_page into fs/block_dev.c. Export kill_bdev as well, so brd doesn't have to open code it. Reduce buffer_head.h requirement accordingly. Removed a rather large comment from invalidate_bdev, as it looked a bit obsolete to bother moving. The small comment replacing it says enough. Signed-off-by: Nick Piggin <npiggin@suse.de> Cc: Al Viro <viro@ZenIV.linux.org.uk> Cc: Christoph Hellwig <hch@lst.de> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
2012-01-03move fs/partitions to block/Al Viro
Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
2012-01-03vfs: fix the rest of sget() racesAl Viro
unfortunately, just checking MS_BORN after having grabbed ->s_umount in sget() is not enough; places that pick superblock from a list and grab s_umount shared need the same check in addition to checking for ->s_root; otherwise three-way race between failing mount, sget() and such list-walker can leave us with list-walker coming *second*, when temporary active ref grabbed by sget() (to be dropped when sget() notices that original mount has failed by checking MS_BORN) has lead to deactivate_locked_super() from failing ->mount() *not* doing ->kill_sb() and just releasing ->s_umount. Once sget() gets through and notices that MS_BORN had never been set it will drop the active ref and fs will be shut down and kicked out of all lists, but it's too late for something like sync_supers(). Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
2012-01-03vfs: new helper - vfs_ustat()Al Viro
... and bury user_get_super()/statfs_by_dentry() - they are purely internal now. Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
2012-01-03vfs: live vfsmounts never have NULL ->mnt_sbAl Viro
Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
2012-01-03vfs: for usbfs, etc. internal vfsmounts ->mnt_sb->s_root == ->mnt_rootAl Viro
Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
2012-01-03vfs: pipe.c is really non-modularAl Viro
... so no exitcalls there. Not much would work if pipe(2) would stop working, after all... Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
2012-01-03vfs: fix the stupidity with i_dentry in inode destructorsAl Viro
Seeing that just about every destructor got that INIT_LIST_HEAD() copied into it, there is no point whatsoever keeping this INIT_LIST_HEAD in inode_init_once(); the cost of taking it into inode_init_always() will be negligible for pipes and sockets and negative for everything else. Not to mention the removal of boilerplate code from ->destroy_inode() instances... Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
2012-01-03vfs: mnt_drop_write_file()Al Viro
new helper (wrapper around mnt_drop_write()) to be used in pair with mnt_want_write_file(). Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
2012-01-03constify seq_file stuffAl Viro
Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
2012-01-03vfs: make do_kern_mount() staticAl Viro
the only user outside of fs/namespace.c has died Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
2012-01-03vfs: convert fs_supers to hlistAl Viro
Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
2012-01-03make nfs_follow_remote_path() handle ERR_PTR() passed as root_mntAl Viro
... rather than duplicating that in callers Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
2012-01-03vfs: kill ->mnt_devname use in afs printksAl Viro
Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
2012-01-03btrfs, nfs, apparmor: don't pull mnt_namespace.h for no reason...Al Viro
it's not needed anymore; we used to, back when we had to do mount_subtree() by hand, complete with put_mnt_ns() in it. No more... Apparmor didn't need it since the __d_path() fix. Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
2012-01-03vfs: dentry_reset_mounted() doesn't use vfsmount argumentAl Viro
lose it Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
2012-01-03unexport put_mnt_ns(), make create_mnt_ns() static outrightAl Viro
Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
2012-01-03vfs: add missing parens in pnode.h macrosAl Viro
Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
2012-01-03vfs: more mnt_parent cleanupsAl Viro
a) mount --move is checking that ->mnt_parent is non-NULL before looking if that parent happens to be shared; ->mnt_parent is never NULL and it's not even an misspelled !mnt_has_parent() b) pivot_root open-codes is_path_reachable(), poorly. c) so does path_is_under(), while we are at it. Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
2012-01-03vfs: new internal helper: mnt_has_parent(mnt)Al Viro
vfsmounts have ->mnt_parent pointing either to a different vfsmount or to itself; it's never NULL and termination condition in loops traversing the tree towards root is mnt == mnt->mnt_parent. At least one place (see the next patch) is confused about what's going on; let's add an explicit helper checking it right way and use it in all places where we need it. Not that there had been too many, but... Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
2012-01-03vfs: kill pointless helpers in namespace.cAl Viro
mnt_{inc,dec}_count() is not cleaner than doing the corresponding mnt_add_count() directly and mnt_set_count() is not used at all. Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
2012-01-03new helpers: fh_{want,drop}_write()Al Viro
A bunch of places in nfsd does mnt_{want,drop}_write on vfsmount of export of given fhandle. Switched to obvious inlined helpers... Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
2012-01-03switch a bunch of places to mnt_want_write_file()Al Viro
it's both faster (in case when file has been opened for write) and cleaner. Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
2012-01-03trim fs/internal.hAl Viro
some stuff in there can actually become static; some belongs to pnode.h as it's a private interface between namespace.c and pnode.c... Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
2012-01-03pull manipulations of rpc_cred inside alloc_nfs_open_context()Al Viro
No need to duplicate them in both callers; make it return ERR_PTR(-ENOMEM) on allocation failure instead of NULL and it'll be able to report rpc_lookup_cred() failures just fine. Callers are much happier that way... Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
2012-01-03cifs: fix bad buffer length check in coalesce_t2Jeff Layton
The current check looks to see if the RFC1002 length is larger than CIFSMaxBufSize, and fails if it is. The buffer is actually larger than that by MAX_CIFS_HDR_SIZE. This bug has been around for a long time, but the fact that we used to cap the clients MaxBufferSize at the same level as the server tended to paper over it. Commit c974befa changed that however and caused this bug to bite in more cases. Reported-and-Tested-by: Konstantinos Skarlatos <k.skarlatos@gmail.com> Tested-by: Shirish Pargaonkar <shirishpargaonkar@gmail.com> Signed-off-by: Jeff Layton <jlayton@redhat.com> Signed-off-by: Steve French <smfrench@gmail.com>
2012-01-03debugfs: add missing #ifdef HAS_IOMEMHeiko Carstens
"debugfs: add tools to printk 32-bit registers" adds new functions which rely on IOMEM functionality which is not present on all architectures and therefore result in compile errors: fs/debugfs/file.c: In function 'debugfs_print_regs32': fs/debugfs/file.c:561:7: error: implicit declaration of function 'readl' [-Werror=implicit-function-declaration] Add an #ifdef CONFIG_HAS_IOMEM to fix this Signed-off-by: Heiko Carstens <heiko.carstens@de.ibm.com> Acked-by: Alessandro Rubini <rubini@gnudd.com> Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
2012-01-03xfs: fix endian conversion issue in discard codeDave Chinner
When finding the longest extent in an AG, we read the value directly out of the AGF buffer without endian conversion. This will give an incorrect length, resulting in FITRIM operations potentially not trimming everything that it should. Signed-off-by: Dave Chinner <dchinner@redhat.com> Reviewed-by: Christoph Hellwig <hch@lst.de> Signed-off-by: Ben Myers <bpm@sgi.com>
2012-01-03Squashfs: fix i_blocks calculation with extended regular filesPhillip Lougher
The le64_to_cpu() forces the calculation to be unsigned, with the effect that it can underflow leading to an incorrect large value. This bug only triggers in rare(ish) circumstances, an empty file encoded as an extended regular file or a completely sparse file. Normally empty files are encoded as a regular file rather than as an extended regular file (and the regular file i_blocks calculation doesn't have this bug). To save space regular file inodes are optimised to encode the most commonly occurring files. Less common regular files are encoded using extended regular file inodes which contain extra information. Empty files with nlinks greater than 1, and or empty files with extended attributes are encoded using extended regular file inodes and they will hit this bug. Signed-off-by: Phillip Lougher <phillip@squashfs.org.uk>
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