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* [XFS] Fix inode list allocation size in writeback.David Chinner2008-05-23
| | | | | | | | | | | | | | We only need to allocate space for the number of inodes in the cluster when writing back inodes, not every byte in the inode cluster. This reduces the amount of memory needing to be allocated to 256 bytes instead of 64k. SGI-PV: 981949 SGI-Modid: xfs-linux-melb:xfs-kern:31182a Signed-off-by: David Chinner <dgc@sgi.com> Signed-off-by: Christoph Hellwig <hch@infradead.org> Signed-off-by: Lachlan McIlroy <lachlan@sgi.com>
* [XFS] Don't allow memory reclaim to wait on the filesystem in inodeDavid Chinner2008-05-23
| | | | | | | | | | | | | | | | | writeback If we allow memory reclaim to wait on the pages under writeback in inode cluster writeback we could deadlock because we are currently holding the ILOCK on the initial writeback inode which is needed in data I/O completion to change the file size or do unwritten extent conversion before the pages are taken out of writeback state. SGI-PV: 981091 SGI-Modid: xfs-linux-melb:xfs-kern:31015a Signed-off-by: David Chinner <dgc@sgi.com> Signed-off-by: Christoph Hellwig <hch@infradead.org> Signed-off-by: Lachlan McIlroy <lachlan@sgi.com>
* [XFS] Fix fsync() b0rkage.David Chinner2008-05-23
| | | | | | | | | | | | | | | | | | | | | xfs_fsync() fails to wait for data I/O completion before checking if the inode is dirty or clean to decide whether to log the inode or not. This misses inode size updates when the data flushed by the fsync() is extending the file. Hence, like fdatasync(), we need to wait for I/o completion first, then check the inode for cleanliness. Doing so makes the behaviour of xfs_fsync() identical for fsync and fdatasync and we *always* use synchronous semantics if the inode is dirty. Therefore also kill the differences and remove the unused flags from the xfs_fsync function and callers. SGI-PV: 981296 SGI-Modid: xfs-linux-melb:xfs-kern:31033a Signed-off-by: David Chinner <dgc@sgi.com> Signed-off-by: Christoph Hellwig <hch@infradead.org> Signed-off-by: Lachlan McIlroy <lachlan@sgi.com>
* ocfs2 endianness fixesAl Viro2008-05-21
| | | | | Signed-off-by: Al Viro <viro@zeniv.linux.org.uk> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
* ecryptfs fixesAl Viro2008-05-21
| | | | | | | memcpy() from userland pointer is a Bad Thing(tm) Signed-off-by: Al Viro <viro@zeniv.linux.org.uk> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
* fix hppfs Makefile breakageAl Viro2008-05-21
| | | | | | | | | Fallout from commit 46d7b522ebf486edbd096965d534cc6465e9e309 ("uml: move hppfs_kern.c to hppfs.c") Signed-off-by: Al Viro <viro@zeniv.linux.org.uk> Acked-by: Jeff Dike <jdike@addtoit.com> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
* Merge git://git.kernel.org/pub/scm/linux/kernel/git/sfrench/cifs-2.6Linus Torvalds2008-05-21
|\ | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | * git://git.kernel.org/pub/scm/linux/kernel/git/sfrench/cifs-2.6: (21 commits) [CIFS] Remove debug statement Fix possible access to undefined memory region. [CIFS] Enable DFS support for Windows query path info [CIFS] Enable DFS support for Unix query path info [CIFS] add missing seq_printf to cifs_show_options for hard mount option [CIFS] add more complete mount options to cifs_show_options [CIFS] Add missing defines for DFS CIFSGetDFSRefer cleanup + dfs_referral_level_3 fixed to conform REFERRAL_V3 the MS-DFSC spec. Fixed DFS code to work with new 'build_path_from_dentry', that returns full path if share in the dfs, now. [CIFS] enable parsing for transport encryption mount parm [CIFS] Finishup DFS code [CIFS] BKL-removal: convert CIFS over to unlocked_ioctl [CIFS] suppress duplicate warning [CIFS] Fix paths when share is in DFS to include proper prefix add function to convert access flags to legacy open mode clarify return value of cifs_convert_flags() [CIFS] don't explicitly do a FindClose on rewind when directory search has ended [CIFS] cleanup old checkpatch warnings [CIFS] CIFSSMBPosixLock should return -EINVAL on error fix memory leak in CIFSFindNext ...
| * [CIFS] Remove debug statementSteve French2008-05-20
| | | | | | | | Signed-off-by: Steve French <sfrench@us.ibm.com>
| * Fix possible access to undefined memory region.Igor Mammedov2008-05-20
| | | | | | | | | | Signed-off-by: Igor Mammedov <niallain@gmail.com> Signed-off-by: Steve French <sfrench@us.ibm.com>
| * [CIFS] Enable DFS support for Windows query path infoSteve French2008-05-20
| | | | | | | | | | | | | | | | | | 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>
| * [CIFS] Enable DFS support for Unix query path infoSteve French2008-05-20
| | | | | | | | | | | | | | | | 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>
| * [CIFS] add missing seq_printf to cifs_show_options for hard mount optionSteve French2008-05-19
| | | | | | | | | | | | | | 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>
| * [CIFS] add more complete mount options to cifs_show_optionsSteve French2008-05-16
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | 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>
| * [CIFS] Add missing defines for DFSSteve French2008-05-16
| | | | | | | | | | | | | | Also has minor cleanup of previous patch CC: Igor Mammedov <niallain@gmail.com> Signed-off-by: Steve French <sfrench@us.ibm.com>
| * CIFSGetDFSRefer cleanup + dfs_referral_level_3 fixed to conform REFERRAL_V3 ↵Igor Mammedov2008-05-16
| | | | | | | | | | | | | | the MS-DFSC spec. Signed-off-by: Igor Mammedov <niallain@gmail.com> Signed-off-by: Steve French <sfrench@us.ibm.com>
| * Fixed DFS code to work with new 'build_path_from_dentry', that returns full ↵Igor Mammedov2008-05-16
| | | | | | | | | | | | | | path if share in the dfs, now. Signed-off-by: Igor Mammedov <niallain@gmail.com> Signed-off-by: Steve French <sfrench@us.ibm.com>
| * [CIFS] enable parsing for transport encryption mount parmSteve French2008-05-15
| | | | | | | | | | | | | | | | | | 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>
| * [CIFS] Finishup DFS codeSteve French2008-05-15
| | | | | | | | | | | | | | 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>
| * [CIFS] BKL-removal: convert CIFS over to unlocked_ioctlSteve French2008-05-15
| | | | | | | | | | | | | | | | | | 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>
| * [CIFS] suppress duplicate warningSteve French2008-05-15
| | | | | | | | | | | | | | | | | | 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>
| * [CIFS] Fix paths when share is in DFS to include proper prefixSteve French2008-05-14
| | | | | | | | | | | | | | | | | | 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>
| * add function to convert access flags to legacy open modeJeff Layton2008-05-14
| | | | | | | | | | | | | | | | 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>
| * clarify return value of cifs_convert_flags()Jeff Layton2008-05-14
| | | | | | | | | | | | | | | | | | | | cifs_convert_flags returns 0x20197 in the default case. It's not immediately evident where that number comes from, so change it to be an or'ed set of flags. The compiler will boil it down anyway. (Thanks to Guenter Kukkukk for clarifying the flags). Signed-off-by: Steve French <sfrench@us.ibm.com>
| * [CIFS] don't explicitly do a FindClose on rewind when directory search has endedSteve French2008-05-13
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Do the following series of operations on a CIFS share: opendir(dir) readdir(dir) unlink(file in dir) rewinddir(dir) readdir(dir) If the readdir read all entries in the directory this will make CIFS throw an error like this: CIFS VFS: Send error in FindClose = -9 CIFS requests "Close at end of search" of the server by setting this bit when issuing FindFirst or FindNext. Therefore when all search entries are returned, the server may return "end of search" and close the search implicitly when this bit is set by the client on the request. We check for this when a readdir is explicitly closed - but when the client notices that a directory has changed after the last operation, we attempt to close the directory before reopening by reissuing a second FindFirst. But, the directory may already been implicitly closed (due to end of search) because the first readdir finished. So we only want to issue a FindClose call in this case when we don't expect it to already be closed. Signed-off-by: Jeff Layton <jlayton@redhat.com> Signed-off-by: Steve French <sfrench@us.ibm.com>
| * [CIFS] cleanup old checkpatch warningsSteve French2008-05-13
| | | | | | | | Signed-off-by: Steve French <sfrench@us.ibm.com>
| * [CIFS] CIFSSMBPosixLock should return -EINVAL on errorMarcin Slusarz2008-05-13
| | | | | | | | | | | | | | all other codepaths in this function return negative values on errors Signed-off-by: Marcin Slusarz <marcin.slusarz@gmail.com> Signed-off-by: Steve French <sfrench@us.ibm.com>
| * fix memory leak in CIFSFindNextJeff Layton2008-05-12
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | When CIFSFindNext gets back an -EBADF from a call, it sets the return code of the function to 0 and eventually exits. Doing this makes the cleanup at the end of the function skip freeing the SMB buffer, so we need to make sure we free the buffer explicitly when doing this. If we don't you end up with errors like this when unplugging the cifs kernel module: slab error in kmem_cache_destroy(): cache `cifs_request': Can't free all objects [<c046bdbf>] kmem_cache_destroy+0x61/0xf3 [<e0f03045>] cifs_destroy_request_bufs+0x14/0x28 [cifs] [<e0f2016e>] exit_cifs+0x1e/0x80 [cifs] [<c043aeae>] sys_delete_module+0x192/0x1b8 [<c04451fd>] audit_syscall_entry+0x14b/0x17d [<c0405413>] syscall_call+0x7/0xb ======================= Signed-off-by: Jeff Layton <jlayton@redhat.com>
| * [CIFS] CIFS currently allows for permissions to be changed on files, evenJeff Layton2008-05-12
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | when unix extensions and cifsacl support are disabled. These permissions changes are "ephemeral" however. They are lost whenever a share is mounted and unmounted, or when memory pressure forces the inode out of the cache. Because of this, we'd like to introduce a behavior change to make CIFS behave more like local DOS/Windows filesystems. When unix extensions and cifsacl support aren't enabled, then don't silently ignore changes to permission bits that can't be reflected on the server. Still, there may be people relying on the current behavior for certain applications. This patch adds a new "dynperm" (and a corresponding "nodynperm") mount option that will be intended to make the client fall back to legacy behavior when setting these modes. Signed-off-by: Jeff Layton <jlayton@redhat.com> Signed-off-by: Steve French <sfrench@us.ibm.com>
* | Merge branch 'for-2.6.26' of git://linux-nfs.org/~bfields/linuxLinus Torvalds2008-05-20
|\ \ | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | * 'for-2.6.26' of git://linux-nfs.org/~bfields/linux: (25 commits) svcrdma: Verify read-list fits within RPCSVC_MAXPAGES svcrdma: Change svc_rdma_send_error return type to void svcrdma: Copy transport address and arm CQ before calling rdma_accept svcrdma: Set rqstp transport address in rdma_read_complete function svcrdma: Use ib verbs version of dma_unmap svcrdma: Cleanup queued, but unprocessed I/O in svc_rdma_free svcrdma: Move the QP and cm_id destruction to svc_rdma_free svcrdma: Add reference for each SQ/RQ WR svcrdma: Move destroy to kernel thread svcrdma: Shrink scope of spinlock on RQ CQ svcrdma: Use standard Linux lists for context cache svcrdma: Simplify RDMA_READ deferral buffer management svcrdma: Remove unused READ_DONE context flags bit svcrdma: Return error from rdma_read_xdr so caller knows to free context svcrdma: Fix error handling during listening endpoint creation svcrdma: Free context on post_recv error in send_reply svcrdma: Free context on ib_post_recv error svcrdma: Add put of connection ESTABLISHED reference in rdma_cma_handler svcrdma: Fix return value in svc_rdma_send svcrdma: Fix race with dto_tasklet in svc_rdma_send ...
| * | nfsd: reorder printk in do_probe_callback to avoid use-after-freeJ. Bruce Fields2008-05-18
| | | | | | | | | | | | | | | | | | | | | We're currently dereferencing the client after we drop our reference count to it. Signed-off-by: J. Bruce Fields <bfields@citi.umich.edu>
* | | Merge git://git.kernel.org/pub/scm/linux/kernel/git/davem/net-2.6Linus Torvalds2008-05-20
|\ \ \ | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | * git://git.kernel.org/pub/scm/linux/kernel/git/davem/net-2.6: (27 commits) pktgen: make sure that pktgen_thread_worker has been executed [VLAN]: Propagate selected feature bits to VLAN devices drivers/atm/: remove CVS keywords vlan: Correctly handle device notifications for layered VLAN devices net: Fix call to ->change_rx_flags(dev, IFF_MULTICAST) in dev_change_flags() net_sched: cls_api: fix return value for non-existant classifiers ipsec: Use the correct ip_local_out function ipv6 addrconf: Allow infinite prefix lifetime. ipv6 route: Fix lifetime in netlink. ipv6 addrconf: Fix route lifetime setting in corner case. ndisc: Add missing strategies for per-device retrans timer/reachable time settings. ipv6: Move <linux/in6.h> from header-y to unifdef-y. l2tp: avoid skb truesize bug if headroom is increased wireless: Create 'device' symlink in sysfs wireless, airo: waitbusy() won't delay libertas: fix command timeout after firmware failure mac80211: Add RTNL version of ieee80211_iterate_active_interfaces mac80211 : Association with 11n hidden ssid ap. hostap: fix "registers" registration in procfs isdn/capi: Return proper errnos on module init. ...
| * | | sysfs: remove error messages for -EEXIST caseStephen Hemminger2008-05-15
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | It is possible that the entry in sysfs already exists, one case of this is when a network device is renamed to bonding_masters. Anyway, in this case the proper error path is for device_rename to return an error code, not to generate bogus backtrace and errors. Also, to avoid possible races, the create link should be done before the remove link. This makes a device rename atomic operation like other renames. Signed-off-by: Stephen Hemminger <shemminger@vyatta.com> Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de> Signed-off-by: David S. Miller <davem@davemloft.net>
* | | | Merge git://git.kernel.org/pub/scm/linux/kernel/git/steve/gfs2-2.6-fixesLinus Torvalds2008-05-20
|\ \ \ \ | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | * git://git.kernel.org/pub/scm/linux/kernel/git/steve/gfs2-2.6-fixes: [GFS2] Prefer strlcpy() over snprintf() [GFS2] Fix cast from unsigned int to s64 [GFS2] filesystem consistency error from do_strip
| * | | | [GFS2] Prefer strlcpy() over snprintf()Jean Delvare2008-05-12
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | strlcpy is faster than snprintf when you don't use the returned value. Signed-off-by: Jean Delvare <khali@linux-fr.org> Signed-off-by: Steven Whitehouse <swhiteho@redhat.com>
| * | | | [GFS2] Fix cast from unsigned int to s64Andrew Price2008-05-12
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | This fixes bz 444829 where allocating a new block caused gfs2 file systems to report 0 bytes used in df. It was caused by a broken cast from an unsigned int in gfs2_block_alloc() to a negative s64 in gfs2_statfs_change(). This patch casts the unsigned int to an s64 before the unary minus is applied. Signed-off-by: Andrew Price <andy@andrewprice.me.uk> Signed-off-by: Steven Whitehouse <swhiteho@redhat.com>
| * | | | [GFS2] filesystem consistency error from do_stripBob Peterson2008-05-12
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | This patch fixes a GFS2 filesystem consistency error reported from function do_strip. The problem was caused by a timing window that allowed two vfs inodes to be created in memory that point to the same file. The problem is fixed by making the vfs's iget_test, iget_set mechanism check and set a new bit in the in-core gfs2_inode structure while the vfs inode spin_lock is held. Signed-off-by: Bob Peterson <rpeterso@redhat.com> Signed-off-by: Steven Whitehouse <swhiteho@redhat.com>
* | | | | Merge branch 'audit.b51' of ↵Linus Torvalds2008-05-19
|\ \ \ \ \ | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | git://git.kernel.org/pub/scm/linux/kernel/git/viro/audit-current * 'audit.b51' of git://git.kernel.org/pub/scm/linux/kernel/git/viro/audit-current: [PATCH] list_for_each_rcu must die: audit [patch 1/1] audit_send_reply(): fix error-path memory leak [PATCH] open sessionid permissions
| * | | | | [PATCH] open sessionid permissionsSteve Grubb2008-05-17
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | The current permissions on sessionid are a little too restrictive. Signed-off-by: Steve Grubb <sgrubb@redhat.com> Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
* | | | | | Merge branch 'for-linus' of ↵Linus Torvalds2008-05-19
|\ \ \ \ \ \ | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | git://git.kernel.org/pub/scm/linux/kernel/git/viro/vfs-2.6 * 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/viro/vfs-2.6: [PATCH] return to old errno choice in mkdir() et.al. [Patch] fs/binfmt_elf.c: fix wrong return values [PATCH] get rid of leak in compat_execve() [Patch] fs/binfmt_elf.c: fix a wrong free [PATCH] avoid multiplication overflows and signedness issues for max_fds [PATCH] dup_fd() part 4 - race fix [PATCH] dup_fd() - part 3 [PATCH] dup_fd() part 2 [PATCH] dup_fd() fixes, part 1 [PATCH] take init_files to fs/file.c
| * | | | | | [PATCH] return to old errno choice in mkdir() et.al.Al Viro2008-05-16
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | In case when both EEXIST and EROFS would apply we used to return the former in mkdir(2) and friends. Lest anyone suspects us of being consistent, in the same situation knfsd gave clients nfs_erofs... ro-bind series had switched the syscall side of things to returning -EROFS and immediately broke an application - namely, mkdir -p. Patch restores the original behaviour... Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
| * | | | | | [Patch] fs/binfmt_elf.c: fix wrong return valuesWANG Cong2008-05-16
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | create_elf_tables() returns 0 on success. But when strnlen_user() "fails", it returns 0 directly. So this is wrong. Signed-off-by: WANG Cong <wangcong@zeuux.org> Cc: Alexander Viro <viro@zeniv.linux.org.uk> Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
| * | | | | | [PATCH] get rid of leak in compat_execve()Al Viro2008-05-16
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Even though copy_compat_strings() doesn't cache the pages, copy_strings_kernel() and stuff indirectly called by e.g. ->load_binary() is doing that, so we need to drop the cache contents in the end. [found by WANG Cong <wangcong@zeuux.org>] Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
| * | | | | | [Patch] fs/binfmt_elf.c: fix a wrong freeWANG Cong2008-05-16
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | In kmalloc failing path, we shouldn't free pointers in 'info', because the struct 'info' is uninitilized when kmalloc is called. And when kmalloc returns NULL, it's needless to kfree it. Signed-off-by: WANG Cong <wangcong@zeuux.org> Cc: Alexander Viro <viro@zeniv.linux.org.uk> Reviewed-by: Pekka Enberg <penberg@cs.helsinki.fi> -- Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
| * | | | | | [PATCH] avoid multiplication overflows and signedness issues for max_fdsAl Viro2008-05-16
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Limit sysctl_nr_open - we don't want ->max_fds to exceed MAX_INT and we don't want size calculation for ->fd[] to overflow. Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
| * | | | | | [PATCH] dup_fd() part 4 - race fixAl Viro2008-05-16
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Parent _can_ be a clone task, contrary to the comment. Moreover, more files could be opened while we allocate a copy, in which case we end up copying only part into new descriptor table. Since what we get _is_ affected by all changes in the old range, we can get rather weird effects - e.g. dup2(0, 1024); close(0); in parallel with fork() resulting in child that sees the effect of close(), but not that of dup2() done just before that close(). What we need is to recalculate the open_count after having reacquired ->file_lock and if external fdtable we'd just allocated is too small for it, free the sucker and redo allocation. Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
| * | | | | | [PATCH] dup_fd() - part 3Al Viro2008-05-16
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | merge alloc_files() into dup_fd(), leave setting newf->fdt until the end Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
| * | | | | | [PATCH] dup_fd() part 2Al Viro2008-05-16
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | use alloc_fdtable() instead of expand_files(), get rid of pointless grabbing newf->file_lock, kill magic in copy_fdtable() that used to be there only to skip copying when called from dup_fd(). Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
| * | | | | | [PATCH] dup_fd() fixes, part 1Al Viro2008-05-16
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Move the sucker to fs/file.c in preparation to the rest Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
| * | | | | | [PATCH] take init_files to fs/file.cAl Viro2008-05-16
| |/ / / / / | | | | | | | | | | | | | | | | | | Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
* | | | | | dlm: fix plock dev_write return valueDavid Teigland2008-05-19
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | The return value on writes to the plock device should be the number of bytes written. It was returning 0 instead when an nfs lock callback was involved. Reported-by: Nathan Straz <nstraz@redhat.com> Signed-off-by: David Teigland <teigland@redhat.com>
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