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2008-08-04mm: rename page trylockNick Piggin
Converting page lock to new locking bitops requires a change of page flag operation naming, so we might as well convert it to something nicer (!TestSetPageLocked_Lock => trylock_page, SetPageLocked => set_page_locked). This also facilitates lockdeping of page lock. Signed-off-by: Nick Piggin <npiggin@suse.de> Acked-by: KOSAKI Motohiro <kosaki.motohiro@jp.fujitsu.com> Acked-by: Peter Zijlstra <peterz@infradead.org> Acked-by: Andrew Morton <akpm@linux-foundation.org> Acked-by: Benjamin Herrenschmidt <benh@kernel.crashing.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2008-08-01[PATCH] pass struct path * to do_add_mount()Al Viro
Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
2008-07-26[PATCH] sanitize ->permission() prototypeAl Viro
* 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>
2008-07-26Merge branch 'master' of ↵Linus Torvalds
git://git.kernel.org/pub/scm/linux/kernel/git/sfrench/cifs-2.6 * 'master' of git://git.kernel.org/pub/scm/linux/kernel/git/sfrench/cifs-2.6: When verifying the decoded header before decoding the object identifier [CIFS] Fix warnings from checkpatch [CIFS] Fix improper endian conversion of ACL subauth field [CIFS] Fix possible double free if search immediately after search rewind fails [CIFS] remove checkpatch warning Signed-off-by: Alexey Dobriyan <adobriyan@gmail.com> cifs: assorted endian annotations [CIFS] break ATTR_SIZE changes out into their own function lockdep: annotate cifs in-kernel sockets [CIFS] Fix compiler warning on 64-bit
2008-07-26SL*B: drop kmem cache argument from constructorAlexey Dobriyan
Kmem cache passed to constructor is only needed for constructors that are themselves multiplexeres. Nobody uses this "feature", nor does anybody uses passed kmem cache in non-trivial way, so pass only pointer to object. Non-trivial places are: arch/powerpc/mm/init_64.c arch/powerpc/mm/hugetlbpage.c This is flag day, yes. Signed-off-by: Alexey Dobriyan <adobriyan@gmail.com> Acked-by: Pekka Enberg <penberg@cs.helsinki.fi> Acked-by: Christoph Lameter <cl@linux-foundation.org> Cc: Jon Tollefson <kniht@linux.vnet.ibm.com> Cc: Nick Piggin <nickpiggin@yahoo.com.au> Cc: Matt Mackall <mpm@selenic.com> [akpm@linux-foundation.org: fix arch/powerpc/mm/hugetlbpage.c] [akpm@linux-foundation.org: fix mm/slab.c] [akpm@linux-foundation.org: fix ubifs] Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2008-07-24When verifying the decoded header before decoding the object identifierChris Wright
(expecting a SPNEGO pseudo-mechanism oid), the test to verify it is a primitive encoding is compared against the asn1 class. Primitive is not a class. This brings check in line with similar check for krb/ntlmssp oid. Signed-off-by: Chris Wright <chrisw@sous-sol.org> Cc: Steven French <sfrench@us.ibm.com> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Steve French <sfrench@us.ibm.com>
2008-07-24[CIFS] Fix warnings from checkpatchShirish Pargaonkar
Signed-off-by: Steve French <sfrench@us.ibm.com>
2008-07-24[CIFS] Fix improper endian conversion of ACL subauth fieldShirish Pargaonkar
In mode_to_acl when converting a Unix mode to a Windows ACL the subauth fields of the SID in the ACL were translated incorrectly on bigendian architectures Signed-off-by: Steve French <sfrench@us.ibm.com>
2008-07-24[CIFS] Fix possible double free if search immediately after search rewind failsShirish Pargaonkar
Signed-off-by: Shirish Pargaonkar <shirishp@us.ibm.com> Signed-off-by: Steve French <sfrench@us.ibm.com>
2008-07-24[CIFS] remove checkpatch warningSteve French
Signed-off-by: Steve French <sfrench@us.ibm.com>
2008-07-24Signed-off-by: Alexey Dobriyan <adobriyan@gmail.com>Alexey Dobriyan
Cc: Steven French <sfrench@us.ibm.com> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Steve French <sfrench@us.ibm.com>
2008-07-24cifs: assorted endian annotationsHarvey Harrison
fs/cifs/cifssmb.c:3917:13: warning: incorrect type in assignment (different base types) fs/cifs/cifssmb.c:3917:13: expected bool [unsigned] [usertype] is_unicode fs/cifs/cifssmb.c:3917:13: got restricted __le16 The comment explains why __force is used here. fs/cifs/connect.c:458:16: warning: cast to restricted __be32 fs/cifs/connect.c:458:16: warning: cast to restricted __be32 fs/cifs/connect.c:458:16: warning: cast to restricted __be32 fs/cifs/connect.c:458:16: warning: cast to restricted __be32 fs/cifs/connect.c:458:16: warning: cast to restricted __be32 fs/cifs/connect.c:458:16: warning: cast to restricted __be32 Signed-off-by: Harvey Harrison <harvey.harrison@gmail.com> Signed-off-by: Steve French <sfrench@us.ibm.com>
2008-07-23[CIFS] break ATTR_SIZE changes out into their own functionJeff Layton
Move the code that handles ATTR_SIZE changes to its own function. This makes for a smaller function and reduces the level of indentation. Signed-off-by: Jeff Layton <jlayton@redhat.com> Signed-off-by: Steve French <sfrench@us.ibm.com>
2008-07-23lockdep: annotate cifs in-kernel socketsJeff Layton
Put CIFS sockets in their own class to avoid some lockdep warnings. CIFS sockets are not exposed to user-space, and so are not subject to the same deadlock scenarios. A similar change was made a couple of years ago for RPC sockets in commit ed07536ed6731775219c1df7fa26a7588753e693. This patch should prevent lockdep false-positives like this one: ======================================================= [ INFO: possible circular locking dependency detected ] 2.6.18-98.el5.jtltest.38.bz456320.1debug #1 ------------------------------------------------------- test5/2483 is trying to acquire lock: (sk_lock-AF_INET){--..}, at: [<ffffffff800270d2>] tcp_sendmsg+0x1c/0xb2f but task is already holding lock: (&inode->i_alloc_sem){--..}, at: [<ffffffff8002e454>] notify_change+0xf5/0x2e0 which lock already depends on the new lock. the existing dependency chain (in reverse order) is: -> #3 (&inode->i_alloc_sem){--..}: [<ffffffff800a817c>] __lock_acquire+0x9a9/0xadf [<ffffffff800a8a72>] lock_acquire+0x55/0x70 [<ffffffff8002e454>] notify_change+0xf5/0x2e0 [<ffffffff800a4e36>] down_write+0x3c/0x68 [<ffffffff8002e454>] notify_change+0xf5/0x2e0 [<ffffffff800e358d>] do_truncate+0x50/0x6b [<ffffffff8005197c>] get_write_access+0x40/0x46 [<ffffffff80012cf1>] may_open+0x1d3/0x22e [<ffffffff8001bc81>] open_namei+0x2c6/0x6dd [<ffffffff800289c6>] do_filp_open+0x1c/0x38 [<ffffffff800683ef>] _spin_unlock+0x17/0x20 [<ffffffff800167a7>] get_unused_fd+0xf9/0x107 [<ffffffff8001a704>] do_sys_open+0x44/0xbe [<ffffffff80060116>] system_call+0x7e/0x83 [<ffffffffffffffff>] 0xffffffffffffffff -> #2 (&sysfs_inode_imutex_key){--..}: [<ffffffff800a817c>] __lock_acquire+0x9a9/0xadf [<ffffffff8010f6df>] create_dir+0x26/0x1d7 [<ffffffff800a8a72>] lock_acquire+0x55/0x70 [<ffffffff8010f6df>] create_dir+0x26/0x1d7 [<ffffffff800671c0>] mutex_lock_nested+0x104/0x29c [<ffffffff800a819d>] __lock_acquire+0x9ca/0xadf [<ffffffff8010f6df>] create_dir+0x26/0x1d7 [<ffffffff8010fc67>] sysfs_create_dir+0x58/0x76 [<ffffffff8015144c>] kobject_add+0xdb/0x198 [<ffffffff801be765>] class_device_add+0xb2/0x465 [<ffffffff8005a6ff>] kobject_get+0x12/0x17 [<ffffffff80225265>] register_netdevice+0x270/0x33e [<ffffffff8022538c>] register_netdev+0x59/0x67 [<ffffffff80464d40>] net_olddevs_init+0xb/0xac [<ffffffff80448a79>] init+0x1f9/0x2fc [<ffffffff80068885>] _spin_unlock_irq+0x24/0x27 [<ffffffff80067f86>] trace_hardirqs_on_thunk+0x35/0x37 [<ffffffff80061079>] child_rip+0xa/0x11 [<ffffffff80068885>] _spin_unlock_irq+0x24/0x27 [<ffffffff800606a8>] restore_args+0x0/0x30 [<ffffffff80179a59>] acpi_ds_init_one_object+0x0/0x80 [<ffffffff80448880>] init+0x0/0x2fc [<ffffffff8006106f>] child_rip+0x0/0x11 [<ffffffffffffffff>] 0xffffffffffffffff -> #1 (rtnl_mutex){--..}: [<ffffffff800a817c>] __lock_acquire+0x9a9/0xadf [<ffffffff8025acf8>] ip_mc_leave_group+0x23/0xb7 [<ffffffff800a8a72>] lock_acquire+0x55/0x70 [<ffffffff8025acf8>] ip_mc_leave_group+0x23/0xb7 [<ffffffff800671c0>] mutex_lock_nested+0x104/0x29c [<ffffffff8025acf8>] ip_mc_leave_group+0x23/0xb7 [<ffffffff802451b0>] do_ip_setsockopt+0x6d1/0x9bf [<ffffffff800a575e>] lock_release_holdtime+0x27/0x48 [<ffffffff800a575e>] lock_release_holdtime+0x27/0x48 [<ffffffff8006a85e>] do_page_fault+0x503/0x835 [<ffffffff8012cbf6>] socket_has_perm+0x5b/0x68 [<ffffffff80245556>] ip_setsockopt+0x22/0x78 [<ffffffff8021c973>] sys_setsockopt+0x91/0xb7 [<ffffffff800602a6>] tracesys+0xd5/0xdf [<ffffffffffffffff>] 0xffffffffffffffff -> #0 (sk_lock-AF_INET){--..}: [<ffffffff800a5037>] print_stack_trace+0x59/0x68 [<ffffffff800a8092>] __lock_acquire+0x8bf/0xadf [<ffffffff800a8a72>] lock_acquire+0x55/0x70 [<ffffffff800270d2>] tcp_sendmsg+0x1c/0xb2f [<ffffffff80035466>] lock_sock+0xd4/0xe4 [<ffffffff80096e91>] _local_bh_enable+0xcb/0xe0 [<ffffffff800606a8>] restore_args+0x0/0x30 [<ffffffff800270d2>] tcp_sendmsg+0x1c/0xb2f [<ffffffff80057540>] sock_sendmsg+0xf3/0x110 [<ffffffff800a2bb6>] autoremove_wake_function+0x0/0x2e [<ffffffff800a10e4>] kernel_text_address+0x1a/0x26 [<ffffffff8006f4e2>] dump_trace+0x211/0x23a [<ffffffff800a6d3d>] find_usage_backwards+0x5f/0x88 [<ffffffff8840221a>] MD5Final+0xaf/0xc2 [cifs] [<ffffffff884032ec>] cifs_calculate_signature+0x55/0x69 [cifs] [<ffffffff8021d891>] kernel_sendmsg+0x35/0x47 [<ffffffff883ff38e>] smb_send+0xa3/0x151 [cifs] [<ffffffff883ff5de>] SendReceive+0x1a2/0x448 [cifs] [<ffffffff800a812f>] __lock_acquire+0x95c/0xadf [<ffffffff883e758a>] CIFSSMBSetEOF+0x20d/0x25b [cifs] [<ffffffff883fa430>] cifs_set_file_size+0x110/0x3b7 [cifs] [<ffffffff883faa89>] cifs_setattr+0x3b2/0x6f6 [cifs] [<ffffffff8002e454>] notify_change+0xf5/0x2e0 [<ffffffff8002e4a4>] notify_change+0x145/0x2e0 [<ffffffff800e358d>] do_truncate+0x50/0x6b [<ffffffff8005197c>] get_write_access+0x40/0x46 [<ffffffff80012cf1>] may_open+0x1d3/0x22e [<ffffffff8001bc81>] open_namei+0x2c6/0x6dd [<ffffffff800289c6>] do_filp_open+0x1c/0x38 [<ffffffff800683ef>] _spin_unlock+0x17/0x20 [<ffffffff800167a7>] get_unused_fd+0xf9/0x107 [<ffffffff8001a704>] do_sys_open+0x44/0xbe [<ffffffff800602a6>] tracesys+0xd5/0xdf [<ffffffffffffffff>] 0xffffffffffffffff other info that might help us debug this: 2 locks held by test5/2483: #0: (&inode->i_mutex){--..}, at: [<ffffffff800e3582>] do_truncate+0x45/0x6b #1: (&inode->i_alloc_sem){--..}, at: [<ffffffff8002e454>] notify_change+0xf5/0x2e0 stack backtrace: Call Trace: [<ffffffff800a6a7b>] print_circular_bug_tail+0x65/0x6e [<ffffffff800a5037>] print_stack_trace+0x59/0x68 [<ffffffff800a8092>] __lock_acquire+0x8bf/0xadf [<ffffffff800a8a72>] lock_acquire+0x55/0x70 [<ffffffff800270d2>] tcp_sendmsg+0x1c/0xb2f [<ffffffff80035466>] lock_sock+0xd4/0xe4 [<ffffffff80096e91>] _local_bh_enable+0xcb/0xe0 [<ffffffff800606a8>] restore_args+0x0/0x30 [<ffffffff800270d2>] tcp_sendmsg+0x1c/0xb2f [<ffffffff80057540>] sock_sendmsg+0xf3/0x110 [<ffffffff800a2bb6>] autoremove_wake_function+0x0/0x2e [<ffffffff800a10e4>] kernel_text_address+0x1a/0x26 [<ffffffff8006f4e2>] dump_trace+0x211/0x23a [<ffffffff800a6d3d>] find_usage_backwards+0x5f/0x88 [<ffffffff8840221a>] :cifs:MD5Final+0xaf/0xc2 [<ffffffff884032ec>] :cifs:cifs_calculate_signature+0x55/0x69 [<ffffffff8021d891>] kernel_sendmsg+0x35/0x47 [<ffffffff883ff38e>] :cifs:smb_send+0xa3/0x151 [<ffffffff883ff5de>] :cifs:SendReceive+0x1a2/0x448 [<ffffffff800a812f>] __lock_acquire+0x95c/0xadf [<ffffffff883e758a>] :cifs:CIFSSMBSetEOF+0x20d/0x25b [<ffffffff883fa430>] :cifs:cifs_set_file_size+0x110/0x3b7 [<ffffffff883faa89>] :cifs:cifs_setattr+0x3b2/0x6f6 [<ffffffff8002e454>] notify_change+0xf5/0x2e0 [<ffffffff8002e4a4>] notify_change+0x145/0x2e0 [<ffffffff800e358d>] do_truncate+0x50/0x6b [<ffffffff8005197c>] get_write_access+0x40/0x46 [<ffffffff80012cf1>] may_open+0x1d3/0x22e [<ffffffff8001bc81>] open_namei+0x2c6/0x6dd [<ffffffff800289c6>] do_filp_open+0x1c/0x38 [<ffffffff800683ef>] _spin_unlock+0x17/0x20 [<ffffffff800167a7>] get_unused_fd+0xf9/0x107 [<ffffffff8001a704>] do_sys_open+0x44/0xbe [<ffffffff800602a6>] tracesys+0xd5/0xdf Signed-off-by: Jeff Layton <jlayton@redhat.com> Acked-by: Peter Zijlstra <a.p.zijlstra@chello.nl> Signed-off-by: Steve French <sfrench@us.ibm.com>
2008-07-22[CIFS] Fix compiler warning on 64-bitJan Beulich
Signed-off-by: Steve French <sfrench@us.ibm.com>
2008-07-14Merge commit 'v2.6.26' into bkl-removalJonathan Corbet
2008-07-12cifs: fix wksidarr declaration to be big-endian friendlyJeff Layton
The current definition of wksidarr works fine on little endian arches (since cpu_to_le32 is a no-op there), but on big-endian arches, it fails to compile with this error: error: braced-group within expression allowed only inside a function The problem is that this static declaration has cpu_to_le32 embedded within it, and that expands into a function macro. We need to use __constant_cpu_to_le32() instead. Signed-off-by: Jeff Layton <jlayton@redhat.com> Cc: Steven French <sfrench@us.ibm.com> Cc: <stable@kernel.org> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2008-07-12cifs: fix inode leak in cifs_get_inode_info_unixJeff Layton
Try this: mount a share with unix extensions create a file on it umount the share You'll get the following message in the ring buffer: VFS: Busy inodes after unmount of cifs. Self-destruct in 5 seconds. Have a nice day... ...the problem is that cifs_get_inode_info_unix is creating and hashing a new inode even when it's going to return error anyway. The first lookup when creating a file returns an error so we end up leaking this inode before we do the actual create. This appears to be a regression caused by commit 0e4bbde94fdc33f5b3d793166b21bf768ca3e098. The following patch seems to fix it for me, and fixes a minor formatting nit as well. Signed-off-by: Jeff Layton <jlayton@redhat.com> Acked-by: Steven French <sfrench@us.ibm.com> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2008-07-02Remove BKL from remote_llseek v2Andi Kleen
- Replace remote_llseek with generic_file_llseek_unlocked (to force compilation failures in all users) - Change all users to either use generic_file_llseek_unlocked directly or take the BKL around. I changed the file systems who don't use the BKL for anything (CIFS, GFS) to call it directly. NCPFS and SMBFS and NFS take the BKL, but explicitely in their own source now. I moved them all over in a single patch to avoid unbisectable sections. Open problem: 32bit kernels can corrupt fpos because its modification is not atomic, but they can do that anyways because there's other paths who modify it without BKL. Do we need a special lock for the pos/f_version = 0 checks? Trond says the NFS BKL is likely not needed, but keep it for now until his full audit. v2: Use generic_file_llseek_unlocked instead of remote_llseek_unlocked and factor duplicated code (suggested by hch) Cc: Trond.Myklebust@netapp.com Cc: swhiteho@redhat.com Cc: sfrench@samba.org Cc: vandrove@vc.cvut.cz Signed-off-by: Andi Kleen <ak@suse.de> Signed-off-by: Andi Kleen <ak@linux.intel.com> Signed-off-by: Jonathan Corbet <corbet@lwn.net>
2008-06-11Merge git://git.kernel.org/pub/scm/linux/kernel/git/sfrench/cifs-2.6Linus Torvalds
* git://git.kernel.org/pub/scm/linux/kernel/git/sfrench/cifs-2.6: [CIFS] cifs: fix oops on mount when CONFIG_CIFS_DFS_UPCALL is enabled [CIFS] Fix hang in mount when negprot causes server to kill tcp session disable most mode changes on non-unix/non-cifsacl mounts [CIFS] Correct incorrect obscure open flag [CIFS] warn if both dynperm and cifsacl mount options specified silently ignore ownership changes unless unix extensions are enabled or we're faking uid changes [CIFS] remove trailing whitespace when creating new inodes, use file_mode/dir_mode exclusively on mount without unix extensions on non-posix shares, clear write bits in mode when ATTR_READONLY is set [CIFS] remove unused variables
2008-06-10[CIFS] cifs: fix oops on mount when CONFIG_CIFS_DFS_UPCALL is enabledSteve French
simple "mount -t cifs //xxx /mnt" oopsed on strlen of options http://kerneloops.org/guilty.php?guilty=cifs_get_sb&version=2.6.25-release&start=16711 \ 68&end=1703935&class=oops Signed-off-by: Marcin Slusarz <marcin.slusarz@gmail.com> Acked-by: Jeff Layton <jlayton@redhat.com> Signed-off-by: Steve French <sfrench@us.ibm.com>
2008-06-10[CIFS] Fix hang in mount when negprot causes server to kill tcp sessionSteve French
Acked-by: Jeff Layton <jlayton@redhat.com> Signed-off-by: Steve French <sfrench@us.ibm.com>
2008-06-05asn1: additional sanity checking during BER decodingChris Wright
- Don't trust a length which is greater than the working buffer. An invalid length could cause overflow when calculating buffer size for decoding oid. - An oid length of zero is invalid and allows for an off-by-one error when decoding oid because the first subid actually encodes first 2 subids. - A primitive encoding may not have an indefinite length. Thanks to Wei Wang from McAfee for report. Cc: Steven French <sfrench@us.ibm.com> Cc: stable@kernel.org Acked-by: Patrick McHardy <kaber@trash.net> Signed-off-by: Chris Wright <chrisw@sous-sol.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2008-06-04cifs endianness fixesAl Viro
__le16 fields used as host-endian. Signed-off-by: Al Viro <viro@zeniv.linux.org.uk> Acked-by: Steve French <smfrench@gmail.com> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2008-05-25disable most mode changes on non-unix/non-cifsacl mountsJeff Layton
CIFS currently allows you to change the mode of an inode on a share that doesn't have unix extensions enabled, and isn't using cifsacl. The inode in this case *only* has its mode changed in memory on the client. This is problematic since it can change any time the inode is purged from the cache. This patch makes cifs_setattr silently ignore most mode changes when unix extensions and cifsacl support are not enabled, and when the share is not mounted with the "dynperm" option. The exceptions are: When a mode change would remove all write access to an inode we turn on the ATTR_READONLY bit on the server and remove all write bits from the inode's mode in memory. When a mode change would add a write bit to an inode that previously had them all turned off, it turns off the ATTR_READONLY bit on the server, and resets the mode back to what it would normally be (generally, the file_mode or dir_mode of the share). Signed-off-by: Jeff Layton <jlayton@redhat.com> Signed-off-by: Steve French <sfrench@us.ibm.com>
2008-05-23[CIFS] Correct incorrect obscure open flagSteve French
Also add defines for pipe subcommand codes Signed-off-by: Steve French <sfrench@us.ibm.com>
2008-05-23[CIFS] warn if both dynperm and cifsacl mount options specifiedSteve French
Signed-off-by: Steve French <sfrench@us.ibm.com>
2008-05-23silently ignore ownership changes unless unix extensions are enabled or ↵Jeff Layton
we're faking uid changes CIFS currently allows you to change the ownership of a file, but unless unix extensions are enabled this change is not passed off to the server. Have CIFS silently ignore ownership changes that can't be persistently stored on the server unless the "setuids" option is explicitly specified. We could return an error here (-EOPNOTSUPP or something), but this is how most disk-based windows filesystems on behave on Linux (e.g. VFAT, NTFS, etc). With cifsacl support and proper Windows to Unix idmapping support, we may be able to do this more properly in the future. Signed-off-by: Jeff Layton <jlayton@redhat.com> Signed-off-by: Steve French <sfrench@us.ibm.com>
2008-05-23[CIFS] remove trailing whitespaceSteve French
Signed-off-by: Steve French <sfrench@us.ibm.com>
2008-05-23when creating new inodes, use file_mode/dir_mode exclusively on mount ↵Jeff Layton
without unix extensions When CIFS creates a new inode on a mount without unix extensions, it temporarily assigns the mode that was passed to it in the create/mkdir call. Eventually, when the inode is revalidated, it changes to have the file_mode or dir_mode for the mount. This is confusing to users who expect that the mode shouldn't change this way. It's also problematic since only the mode is treated this way, not the uid or gid. Suppose you have a CIFS mount that's mounted with: uid=0,gid=0,file_mode=0666,dir_mode=0777 ...if an unprivileged user comes along and does this on the mount: mkdir -m 0700 foo touch foo/bar ...there is a period of time where the touch will fail, since the dir will initially be owned by root and have mode 0700. If the user waits long enough, then "foo" will be revalidated and will get the correct dir_mode permissions. This patch changes cifs_mkdir and cifs_create to not overwrite the mode found by the initial cifs_get_inode_info call after the inode is created on the server. Legacy behavior can be reenabled with the new "dynperm" mount option. Signed-off-by: Jeff Layton <jlayton@redhat.com> Signed-off-by: Steve French <sfrench@us.ibm.com>
2008-05-23on non-posix shares, clear write bits in mode when ATTR_READONLY is setJeff Layton
When mounting a share with posix extensions disabled, cifs_get_inode_info turns off all the write bits in the mode for regular files if ATTR_READONLY is set. Directories and other inode types, however, can also have ATTR_READONLY set, but the mode gives no indication of this. This patch makes this apply to other inode types besides regular files. It also cleans up how modes are set in cifs_get_inode_info for both the "normal" and "dynperm" cases. Signed-off-by: Jeff Layton <jlayton@redhat.com> Signed-off-by: Steve French <sfrench@us.ibm.com>
2008-05-23[CIFS] remove unused variablesSteve French
CC: Jeff Layton <jlayton@redhat.com> Signed-off-by: Steve French <sfrench@us.ibm.com>
2008-05-22[CIFS] Fix reversed memset argumentsDave Jones
Signed-off-by: Dave Jones <davej@redhat.com> Signed-off-by: Steve French <sfrench@us.ibm.com>
2008-05-22Adds username in the upcall key for unattended mounts with keytabIgor Mammedov
Signed-off-by: Igor Mammedov <niallain@gmail.com> Signed-off-by: Steve French <sfrench@us.ibm.com>
2008-05-22[CIFS] Remove redundant NULL checkSteve French
Noticed by Coverity checker. Signed-off-by: Steve French <sfrench@us.ibm.com>
2008-05-21[CIFS] Remove debug statementSteve French
Signed-off-by: Steve French <sfrench@us.ibm.com>
2008-05-21Fix possible access to undefined memory region.Igor Mammedov
Signed-off-by: Igor Mammedov <niallain@gmail.com> Signed-off-by: Steve French <sfrench@us.ibm.com>
2008-05-20[CIFS] Enable DFS support for Windows query path infoSteve French
Final piece for handling DFS in query_path_info, constructing a fake inode for the junction directory which the submount will cover. This handles the non-Unix (Windows etc.) code path. Signed-off-by: Steve French <sfrench@us.ibm.com>
2008-05-20[CIFS] Enable DFS support for Unix query path infoSteve French
Final piece for handling DFS in unix_query_path_info, constructing a fake inode for the junction directory which the submount will cover. Acked-by: Igor Mammedov <niallain@gmail.com> Signed-off-by: Steve French <sfrench@us.ibm.com>
2008-05-19[CIFS] add missing seq_printf to cifs_show_options for hard mount optionSteve French
Also Kari Hurtta noticed a missing check in the same function which is now fixed. CC: Kari Hurtta <hurtta+gmane@siilo.fmi.fi> Signed-off-by: Steve French <sfrench@us.ibm.com>
2008-05-17[CIFS] add more complete mount options to cifs_show_optionsSteve French
adds various options to cifs_show_options (displayed when you cat /proc/mounts with a cifs mount). I limited the new ones to values that are associated with the mount with the exception of "seal" (which is a per tree connection property, but I thought was important enough to show through). Eventually cifs's parse_mount_options also needs to be rewritten to use the match_token API but that would be a big enough change that I would prefer that changing parse_mount_options wait until next release. Signed-off-by: Steve French <sfrench@us.ibm.com>
2008-05-16[CIFS] Add missing defines for DFSSteve French
Also has minor cleanup of previous patch CC: Igor Mammedov <niallain@gmail.com> Signed-off-by: Steve French <sfrench@us.ibm.com>
2008-05-16CIFSGetDFSRefer cleanup + dfs_referral_level_3 fixed to conform REFERRAL_V3 ↵Igor Mammedov
the MS-DFSC spec. Signed-off-by: Igor Mammedov <niallain@gmail.com> Signed-off-by: Steve French <sfrench@us.ibm.com>
2008-05-16Fixed DFS code to work with new 'build_path_from_dentry', that returns full ↵Igor Mammedov
path if share in the dfs, now. Signed-off-by: Igor Mammedov <niallain@gmail.com> Signed-off-by: Steve French <sfrench@us.ibm.com>
2008-05-15[CIFS] enable parsing for transport encryption mount parmSteve French
Samba now supports transport encryption on particular exports (mounted tree ids can be encrypted for servers which support the unix extensions). This adds parsing support to cifs mount option parsing for this. Signed-off-by: Steve French <sfrench@us.ibm.com>
2008-05-15[CIFS] Finishup DFS codeSteve French
Fixup GetDFSRefer to prepare for cleanup of SMB response processing Fix build warning in link.c Signed-off-by: Steve French <sfrench@us.ibm.com>
2008-05-15[CIFS] BKL-removal: convert CIFS over to unlocked_ioctlSteve French
cifs_ioctl doesn't seem to need the BKL for anything, so convert it over to use unlocked_ioctl. Signed-off-by: Andi Kleen <andi@firstfloor.org> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Steve French <sfrench@us.ibm.com>
2008-05-15[CIFS] suppress duplicate warningSteve French
fs/cifs/dir.c: In function 'cifs_ci_compare': fs/cifs/dir.c:582: warning: passing argument 1 of 'memcpy' discards qualifiers from pointer target type Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Steve French <sfrench@us.ibm.com>
2008-05-15[CIFS] Fix paths when share is in DFS to include proper prefixSteve French
Some versions of Samba (3.2-pre e.g.) are stricter about checking to make sure that paths in DFS name spaces are sent in the form \\server\share\dir\subdir ... instead of \dir\subdir Acked-by: Jeff Layton <jlayton@redhat.com> Signed-off-by: Steve French <sfrench@us.ibm.com>
2008-05-14add function to convert access flags to legacy open modeJeff Layton
SMBLegacyOpen always opens a file as r/w. This could be problematic for files with ATTR_READONLY set. Have it interpret the access_mode into a sane open mode. Signed-off-by: Steve French <sfrench@us.ibm.com>