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* cifs: pass instantiated filp back after open callJeff Layton2010-06-16
| | | | | | | | | | | | | | | | | | The current scheme of sticking open files on a list and assuming that cifs_open will scoop them off of it is broken and leads to "Busy inodes after umount..." errors at unmount time. The problem is that there is no guarantee that cifs_open will always be called after a ->lookup or ->create operation. If there are permissions or other problems, then it's quite likely that it *won't* be called. Fix this by fully instantiating the filp whenever the file is created and pass that filp back to the VFS. If there is a problem, the VFS can clean up the references. Signed-off-by: Jeff Layton <jlayton@redhat.com> Reviewed-and-Tested-by: Suresh Jayaraman <sjayaraman@suse.de>
* cifs: move cifs_new_fileinfo call out of cifs_posix_openJeff Layton2010-06-16
| | | | | | | | | | | | | | | | | | Having cifs_posix_open call cifs_new_fileinfo is problematic and inconsistent with how "regular" opens work. It's also buggy as cifs_reopen_file calls this function on a reconnect, which creates a new struct cifsFileInfo that just gets leaked. Push it out into the callers. This also allows us to get rid of the "mnt" arg to cifs_posix_open. Finally, in the event that a cifsFileInfo isn't or can't be created, we always want to close the filehandle out on the server as the client won't have a record of the filehandle and can't actually use it. Make sure that CIFSSMBClose is called in those cases. Signed-off-by: Jeff Layton <jlayton@redhat.com> Reviewed-and-Tested-by: Suresh Jayaraman <sjayaraman@suse.de>
* Merge branch 'master' of /pub/scm/linux/kernel/git/torvalds/linux-2.6Steve French2010-06-16
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| * Merge branch 'for-linus' of ↵Linus Torvalds2010-06-11
| |\ | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | git://git.kernel.org/pub/scm/linux/kernel/git/mason/btrfs-unstable * 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/mason/btrfs-unstable: Btrfs: The file argument for fsync() is never null Btrfs: handle ERR_PTR from posix_acl_from_xattr() Btrfs: avoid BUG when dropping root and reference in same transaction Btrfs: prohibit a operation of changing acl's mask when noacl mount option used Btrfs: should add a permission check for setfacl Btrfs: btrfs_lookup_dir_item() can return ERR_PTR Btrfs: btrfs_read_fs_root_no_name() returns ERR_PTRs Btrfs: unwind after btrfs_start_transaction() errors Btrfs: btrfs_iget() returns ERR_PTR Btrfs: handle kzalloc() failure in open_ctree() Btrfs: handle error returns from btrfs_lookup_dir_item() Btrfs: Fix BUG_ON for fs converted from extN Btrfs: Fix null dereference in relocation.c Btrfs: fix remap_file_pages error Btrfs: uninitialized data is check_path_shared() Btrfs: fix fallocate regression Btrfs: fix loop device on top of btrfs
| | * Btrfs: The file argument for fsync() is never nullDan Carpenter2010-06-11
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | The "file" argument for fsync is never null so we can remove this check. What drew my attention here is that 7ea8085910e: "drop unused dentry argument to ->fsync" introduced an unconditional dereference at the start of the function and that generated a smatch warning. Signed-off-by: Dan Carpenter <error27@gmail.com> Signed-off-by: Chris Mason <chris.mason@oracle.com>
| | * Btrfs: handle ERR_PTR from posix_acl_from_xattr()Dan Carpenter2010-06-11
| | | | | | | | | | | | | | | | | | | | | | | | posix_acl_from_xattr() returns both ERR_PTRs and null, but it's OK to pass null values to set_cached_acl() Signed-off-by: Dan Carpenter <error27@gmail.com> Signed-off-by: Chris Mason <chris.mason@oracle.com>
| | * Btrfs: avoid BUG when dropping root and reference in same transactionSage Weil2010-06-11
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | If btrfs_ioctl_snap_destroy() deletes a snapshot but finishes with end_transaction(), the cleaner kthread may come in and drop the root in the same transaction. If that's the case, the root's refs still == 1 in the tree when btrfs_del_root() deletes the item, because commit_fs_roots() hasn't updated it yet (that happens during the commit). This wasn't a problem before only because btrfs_ioctl_snap_destroy() would commit the transaction before dropping the dentry reference, so the dead root wouldn't get queued up until after the fs root item was updated in the btree. Since it is not an error to drop the root reference and the root in the same transaction, just drop the BUG_ON() in btrfs_del_root(). Signed-off-by: Sage Weil <sage@newdream.net> Signed-off-by: Chris Mason <chris.mason@oracle.com>
| | * Btrfs: prohibit a operation of changing acl's mask when noacl mount option usedShi Weihua2010-06-11
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | when used Posix File System Test Suite(pjd-fstest) to test btrfs, some cases about setfacl failed when noacl mount option used. I simplified used commands in pjd-fstest, and the following steps can reproduce it. ------------------------ # cd btrfs-part/ # mkdir aaa # setfacl -m m::rw aaa <- successed, but not expected by pjd-fstest. ------------------------ I checked ext3, a warning message occured, like as: setfacl: aaa/: Operation not supported Certainly, it's expected by pjd-fstest. So, i compared acl.c of btrfs and ext3. Based on that, a patch created. Fortunately, it works. Signed-off-by: Shi Weihua <shiwh@cn.fujitsu.com> Signed-off-by: Chris Mason <chris.mason@oracle.com>
| | * Btrfs: should add a permission check for setfaclShi Weihua2010-06-11
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | On btrfs, do the following ------------------ # su user1 # cd btrfs-part/ # touch aaa # getfacl aaa # file: aaa # owner: user1 # group: user1 user::rw- group::rw- other::r-- # su user2 # cd btrfs-part/ # setfacl -m u::rwx aaa # getfacl aaa # file: aaa # owner: user1 # group: user1 user::rwx <- successed to setfacl group::rw- other::r-- ------------------ but we should prohibit it that user2 changing user1's acl. In fact, on ext3 and other fs, a message occurs: setfacl: aaa: Operation not permitted This patch fixed it. Signed-off-by: Shi Weihua <shiwh@cn.fujitsu.com> Signed-off-by: Chris Mason <chris.mason@oracle.com>
| | * Btrfs: btrfs_lookup_dir_item() can return ERR_PTRDan Carpenter2010-06-11
| | | | | | | | | | | | | | | | | | | | | btrfs_lookup_dir_item() can return either ERR_PTRs or null. Signed-off-by: Dan Carpenter <error27@gmail.com> Signed-off-by: Chris Mason <chris.mason@oracle.com>
| | * Btrfs: btrfs_read_fs_root_no_name() returns ERR_PTRsDan Carpenter2010-06-11
| | | | | | | | | | | | | | | | | | | | | | | | | | | btrfs_read_fs_root_no_name() returns ERR_PTRs on error so I added a check for that. It's not clear to me if it can also return NULL pointers or not so I left the original NULL pointer check as is. Signed-off-by: Dan Carpenter <error27@gmail.com> Signed-off-by: Chris Mason <chris.mason@oracle.com>
| | * Btrfs: unwind after btrfs_start_transaction() errorsDan Carpenter2010-06-11
| | | | | | | | | | | | | | | | | | | | | | | | | | | This was added by a22285a6a3: "Btrfs: Integrate metadata reservation with start_transaction". If we goto out here then we skip all the unwinding and there are locks still held etc. Signed-off-by: Dan Carpenter <error27@gmail.com> Signed-off-by: Chris Mason <chris.mason@oracle.com>
| | * Btrfs: btrfs_iget() returns ERR_PTRDan Carpenter2010-06-11
| | | | | | | | | | | | | | | | | | | | | btrfs_iget() returns an ERR_PTR() on failure and not null. Signed-off-by: Dan Carpenter <error27@gmail.com> Signed-off-by: Chris Mason <chris.mason@oracle.com>
| | * Btrfs: handle kzalloc() failure in open_ctree()Dan Carpenter2010-06-11
| | | | | | | | | | | | | | | | | | | | | Unwind and return -ENOMEM if the allocation fails here. Signed-off-by: Dan Carpenter <error27@gmail.com> Signed-off-by: Chris Mason <chris.mason@oracle.com>
| | * Btrfs: handle error returns from btrfs_lookup_dir_item()Dan Carpenter2010-06-11
| | | | | | | | | | | | | | | | | | | | | | | | If btrfs_lookup_dir_item() fails, we should can just let the mount fail with an error. Signed-off-by: Dan Carpenter <error27@gmail.com> Signed-off-by: Chris Mason <chris.mason@oracle.com>
| | * Btrfs: Fix BUG_ON for fs converted from extNYan, Zheng2010-06-11
| | | | | | | | | | | | | | | | | | | | | | | | Tree blocks can live in data block groups in FS converted from extN. So it's easy to trigger the BUG_ON. Signed-off-by: Yan Zheng <zheng.yan@oracle.com> Signed-off-by: Chris Mason <chris.mason@oracle.com>
| | * Btrfs: Fix null dereference in relocation.cYan, Zheng2010-06-11
| | | | | | | | | | | | | | | | | | | | | | | | Fix a potential null dereference in relocation.c Signed-off-by: Yan Zheng <zheng.yan@oracle.com> Acked-by: Dan Carpenter <error27@gmail.com> Signed-off-by: Chris Mason <chris.mason@oracle.com>
| | * Btrfs: fix remap_file_pages errorMiao Xie2010-06-11
| | | | | | | | | | | | | | | | | | | | | | | | when we use remap_file_pages() to remap a file, remap_file_pages always return error. It is because btrfs didn't set VM_CAN_NONLINEAR for vma. Signed-off-by: Miao Xie <miaox@cn.fujitsu.com> Signed-off-by: Chris Mason <chris.mason@oracle.com>
| | * Btrfs: uninitialized data is check_path_shared()Dan Carpenter2010-06-11
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | refs can be used with uninitialized data if btrfs_lookup_extent_info() fails on the first pass through the loop. In the original code if that happens then check_path_shared() probably returns 1, this patch changes it to return 1 for safety. Signed-off-by: Dan Carpenter <error27@gmail.com> Signed-off-by: Chris Mason <chris.mason@oracle.com>
| | * Btrfs: fix fallocate regressionJosef Bacik2010-06-11
| | | | | | | | | | | | | | | | | | | | | | | | | | | Seems that when btrfs_fallocate was converted to use the new ENOSPC stuff we dropped passing the mode to the function that actually does the preallocation. This breaks anybody who wants to use FALLOC_FL_KEEP_SIZE. Thanks, Signed-off-by: Josef Bacik <josef@redhat.com> Signed-off-by: Chris Mason <chris.mason@oracle.com>
| | * Btrfs: fix loop device on top of btrfsMiao Xie2010-06-11
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | We cannot use the loop device which has been connected to a file in the btrf The reproduce steps is following: # dd if=/dev/zero of=vdev0 bs=1M count=1024 # losetup /dev/loop0 vdev0 # mkfs.btrfs /dev/loop0 ... failed to zero device start -5 The reason is that the btrfs don't implement either ->write_begin or ->write the VFS API, so we fix it by setting ->write to do_sync_write(). Signed-off-by: Miao Xie <miaox@cn.fujitsu.com> Signed-off-by: Chris Mason <chris.mason@oracle.com>
| * | Merge branch 'for-linus' of ↵Linus Torvalds2010-06-11
| |\ \ | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | git://git.kernel.org/pub/scm/linux/kernel/git/sage/ceph-client * 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/sage/ceph-client: ceph: try to send partial cap release on cap message on missing inode ceph: release cap on import if we don't have the inode ceph: fix misleading/incorrect debug message ceph: fix atomic64_t initialization on ia64 ceph: fix lease revocation when seq doesn't match ceph: fix f_namelen reported by statfs ceph: fix memory leak in statfs ceph: fix d_subdirs ordering problem
| | * | ceph: try to send partial cap release on cap message on missing inodeSage Weil2010-06-10
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | If we have enough memory to allocate a new cap release message, do so, so that we can send a partial release message immediately. This keeps us from making the MDS wait when the cap release it needs is in a partially full release message. If we fail because of ENOMEM, oh well, they'll just have to wait a bit longer. Signed-off-by: Sage Weil <sage@newdream.net>
| | * | ceph: release cap on import if we don't have the inodeSage Weil2010-06-10
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | If we get an IMPORT that give us a cap, but we don't have the inode, queue a release (and try to send it immediately) so that the MDS doesn't get stuck waiting for us. Signed-off-by: Sage Weil <sage@newdream.net>
| | * | ceph: fix misleading/incorrect debug messageSage Weil2010-06-10
| | | | | | | | | | | | | | | | | | | | | | | | Nothing is released here: the caps message is simply ignored in this case. Signed-off-by: Sage Weil <sage@newdream.net>
| | * | ceph: fix atomic64_t initialization on ia64Jeff Mahoney2010-06-10
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | bdi_seq is an atomic_long_t but we're using ATOMIC_INIT, which causes build failures on ia64. This patch fixes it to use ATOMIC_LONG_INIT. Signed-off-by: Jeff Mahoney <jeffm@suse.com> Signed-off-by: Sage Weil <sage@newdream.net>
| | * | ceph: fix lease revocation when seq doesn't matchSage Weil2010-06-04
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | If the client revokes a lease with a higher seq than what we have, keep the mds's seq, so that it honors our release. Otherwise, we can hang indefinitely. Signed-off-by: Sage Weil <sage@newdream.net>
| | * | ceph: fix f_namelen reported by statfsSage Weil2010-06-01
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | We were setting f_namelen in kstatfs to PATH_MAX instead of NAME_MAX. That disagrees with ceph_lookup behavior (which checks against NAME_MAX), and also makes the pjd posix test suite spit out ugly errors because with can't clean up its temporary files. Signed-off-by: Sage Weil <sage@newdream.net>
| | * | ceph: fix memory leak in statfsYehuda Sadeh2010-06-01
| | | | | | | | | | | | | | | | | | | | | | | | | | | | Freeing the statfs request structure when required. Signed-off-by: Yehuda Sadeh <yehuda@hq.newdream.net> Signed-off-by: Sage Weil <sage@newdream.net>
| | * | ceph: fix d_subdirs ordering problemHenry C Chang2010-06-01
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | We misused list_move_tail() to order the dentry in d_subdirs. This will screw up the d_subdirs order. This bug can be reliably reproduced by: 1. mount ceph fs. 2. on ceph fs, git clone git://ceph.newdream.net/git/ceph.git 3. Run autogen.sh in ceph directory. (Note: Errors only occur at the first time you run autogen.sh.) Signed-off-by: Henry C Chang <henry_c_chang@tcloudcomputing.com> Signed-off-by: Sage Weil <sage@newdream.net>
| * | | pipe: fix check in "set size" fcntlMiklos Szeredi2010-06-10
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | As it stands this check compares the number of pages to the page size. This makes no sense and makes the fcntl fail in almost any sane case. Fix it by checking if nr_pages is not zero (it can become zero only if arg is too big and round_pipe_size() overflows). Signed-off-by: Miklos Szeredi <mszeredi@suse.cz> Signed-off-by: Jens Axboe <jaxboe@fusionio.com>
| * | | pipe: fix pipe buffer resizingMiklos Szeredi2010-06-10
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | pipe_set_size() needs to copy pipe bufs from the old circular buffer to the new. The current code gets this wrong in multiple ways, resulting in oops. Test program is available here: http://www.kernel.org/pub/linux/kernel/people/mszeredi/piperesize/ Signed-off-by: Miklos Szeredi <mszeredi@suse.cz> Signed-off-by: Jens Axboe <jaxboe@fusionio.com>
| * | | block: remove duplicate BUG_ON() in bd_finish_claiming()Jens Axboe2010-06-10
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | We do the same BUG_ON() just a line later when calling into __bd_abort_claiming(). Reported-by: Tejun Heo <tj@kernel.org> Signed-off-by: Jens Axboe <jaxboe@fusionio.com>
| * | | block: bd_start_claiming cleanupNick Piggin2010-06-10
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | I don't like the subtle multi-context code in bd_claim (ie. detects where it has been called based on bd_claiming). It seems clearer to just require a new function to finish a 2-part claim. Also improve commentary in bd_start_claiming as to how it should be used. Signed-off-by: Nick Piggin <npiggin@suse.de> Acked-by: Tejun Heo <tj@kernel.org> Signed-off-by: Jens Axboe <jaxboe@fusionio.com>
| * | | block: bd_start_claiming fix module refcountNick Piggin2010-06-10
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | bd_start_claiming has an unbalanced module_put introduced in 6b4517a79. Signed-off-by: Nick Piggin <npiggin@suse.de> Acked-by: Tejun Heo <tj@kernel.org> Signed-off-by: Jens Axboe <jaxboe@fusionio.com>
| * | | Merge branch 'for-2.6.35' of git://linux-nfs.org/~bfields/linuxLinus Torvalds2010-06-09
| |\ \ \ | | | | | | | | | | | | | | | | | | | | | | | | | * 'for-2.6.35' of git://linux-nfs.org/~bfields/linux: nfsd4: shut down callback queue outside state lock nfsd: nfsd_setattr needs to call commit_metadata
| | * \ \ Merge branch 'for-2.6.34-incoming' into for-2.6.35-incomingJ. Bruce Fields2010-06-08
| | |\ \ \
| | | * | | nfsd: nfsd_setattr needs to call commit_metadataChristoph Hellwig2010-06-01
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | The conversion of write_inode_now calls to commit_metadata in commit f501912a35c02eadc55ca9396ece55fe36f785d0 missed out the call in nfsd_setattr. But without this conversion we can't guarantee that a SETATTR request has actually been commited to disk with XFS, which causes a regression from 2.6.32 (only for NFSv2, but anyway). Signed-off-by: Christoph Hellwig <hch@lst.de> Cc: stable@kernel.org Signed-off-by: J. Bruce Fields <bfields@citi.umich.edu>
| | * | | | nfsd4: shut down callback queue outside state lockJ. Bruce Fields2010-06-08
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | This reportedly causes a lockdep warning on nfsd shutdown. That looks like a false positive to me, but there's no reason why this needs the state lock anyway. Reported-by: Jeff Layton <jlayton@redhat.com> Signed-off-by: J. Bruce Fields <bfields@citi.umich.edu>
| * | | | | xfs: remove nr_to_write writeback windup.Dave Chinner2010-06-08
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Now that the background flush code has been fixed, we shouldn't need to silently multiply the wbc->nr_to_write to get good writeback. Remove that code. Signed-off-by: Dave Chinner <dchinner@redhat.com> Reviewed-by: Christoph Hellwig <hch@lst.de> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
| * | | | | Merge git://git.infradead.org/~dwmw2/mtd-2.6.35Linus Torvalds2010-06-07
| |\ \ \ \ \ | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | * git://git.infradead.org/~dwmw2/mtd-2.6.35: jffs2: update ctime when changing the file's permission by setfacl jffs2: Fix NFS race by using insert_inode_locked() jffs2: Fix in-core inode leaks on error paths mtd: Fix NAND submenu mtd/r852: update card detect early. mtd/r852: Fixes in case of DMA timeout mtd/r852: register IRQ as last step drivers/mtd: Use memdup_user docbook: make mtd nand module init static
| | * | | | | jffs2: update ctime when changing the file's permission by setfaclJan Kara2010-06-06
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | jffs2 didn't update the ctime of the file when its permission was changed. Steps to reproduce: # touch aaa # stat -c %Z aaa 1275289822 # setfacl -m 'u::x,g::x,o::x' aaa # stat -c %Z aaa 1275289822 <- unchanged But, according to the spec of the ctime, jffs2 must update it. Port of ext3 patch by Miao Xie <miaox@cn.fujitsu.com>. Signed-off-by: Jan Kara <jack@suse.cz> Signed-off-by: David Woodhouse <David.Woodhouse@intel.com>
| | * | | | | jffs2: Fix NFS race by using insert_inode_locked()David Woodhouse2010-06-03
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | New inodes need to be locked as we're creating them, so they don't get used by other things (like NFSd) before they're ready. Pointed out by Al Viro. Signed-off-by: David Woodhouse <David.Woodhouse@intel.com>
| | * | | | | jffs2: Fix in-core inode leaks on error pathsDavid Woodhouse2010-06-03
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Pointed out by Al Viro. Signed-off-by: David Woodhouse <David.Woodhouse@intel.com>
| * | | | | | Merge branch 'for_linus' of ↵Linus Torvalds2010-06-05
| |\ \ \ \ \ \ | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | git://git.kernel.org/pub/scm/linux/kernel/git/tytso/ext4 * 'for_linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tytso/ext4: ext4: Fix remaining racy updates of EXT4_I(inode)->i_flags ext4: Make sure the MOVE_EXT ioctl can't overwrite append-only files
| | * | | | | | ext4: Fix remaining racy updates of EXT4_I(inode)->i_flagsDmitry Monakhov2010-06-05
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | A few functions were still modifying i_flags in a racy manner. Signed-off-by: Dmitry Monakhov <dmonakhov@openvz.org> Signed-off-by: "Theodore Ts'o" <tytso@mit.edu>
| | * | | | | | ext4: Make sure the MOVE_EXT ioctl can't overwrite append-only filesTheodore Ts'o2010-06-02
| | | |_|_|/ / | | |/| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Dan Roseberg has reported a problem with the MOVE_EXT ioctl. If the donor file is an append-only file, we should not allow the operation to proceed, lest we end up overwriting the contents of an append-only file. Signed-off-by: "Theodore Ts'o" <tytso@mit.edu> Cc: Dan Rosenberg <dan.j.rosenberg@gmail.com>
* | | | | | | cifs: implement drop_inode superblock opJeff Layton2010-06-11
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | The standard behavior for drop_inode is to delete the inode when the last reference to it is put and the nlink count goes to 0. This helps keep inodes that are still considered "not deleted" in cache as long as possible even when there aren't dentries attached to them. When server inode numbers are disabled, it's not possible for cifs_iget to ever match an existing inode (since inode numbers are generated via iunique). In this situation, cifs can keep a lot of inodes in cache that will never be used again. Implement a drop_inode routine that deletes the inode if server inode numbers are disabled on the mount. This helps keep the cifs inode caches down to a more manageable size when server inode numbers are disabled. Signed-off-by: Jeff Layton <jlayton@redhat.com> Signed-off-by: Steve French <sfrench@us.ibm.com>
* | | | | | | cifs: don't attempt busy-file rename unless it's in same directoryJeff Layton2010-06-11
|/ / / / / / | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Busy-file renames don't actually work across directories, so we need to limit this code to renames within the same dir. This fixes the bug detailed here: https://bugzilla.redhat.com/show_bug.cgi?id=591938 Signed-off-by: Jeff Layton <jlayton@redhat.com> CC: Stable <stable@kernel.org> Signed-off-by: Steve French <sfrench@us.ibm.com>
* | | | | | Merge branch 'for-linus' of git://oss.sgi.com/xfs/xfsLinus Torvalds2010-06-05
|\ \ \ \ \ \ | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | * 'for-linus' of git://oss.sgi.com/xfs/xfs: xfs: improve xfs_isilocked xfs: skip writeback from reclaim context xfs: remove done roadmap item from xfs-delayed-logging-design.txt xfs: fix race in inode cluster freeing failing to stale inodes xfs: fix access to upper inodes without inode64 xfs: fix might_sleep() warning when initialising per-ag tree fs/xfs/quota: Add missing mutex_unlock xfs: remove duplicated #include xfs: convert more trace events to DEFINE_EVENT xfs: xfs_trace.c: remove duplicated #include xfs: Check new inode size is OK before preallocating xfs: clean up xlog_align xfs: cleanup log reservation calculactions xfs: be more explicit if RT mount fails due to config xfs: replace E2BIG with EFBIG where appropriate
generated by cgit v1.2.2 (git 2.25.0) at 2024-10-07 19:39:55 -0400