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* Merge branch 'for_linus' of ↵Linus Torvalds2012-01-091-3/+6
|\ | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | git://git.kernel.org/pub/scm/linux/kernel/git/jack/linux-fs * 'for_linus' of git://git.kernel.org/pub/scm/linux/kernel/git/jack/linux-fs: ext2/3/4: delete unneeded includes of module.h ext{3,4}: Fix potential race when setversion ioctl updates inode udf: Mark LVID buffer as uptodate before marking it dirty ext3: Don't warn from writepage when readonly inode is spotted after error jbd: Remove j_barrier mutex reiserfs: Force inode evictions before umount to avoid crash reiserfs: Fix quota mount option parsing udf: Treat symlink component of type 2 as / udf: Fix deadlock when converting file from in-ICB one to normal one udf: Cleanup calling convention of inode_getblk() ext2: Fix error handling on inode bitmap corruption ext3: Fix error handling on inode bitmap corruption ext3: replace ll_rw_block with other functions ext3: NULL dereference in ext3_evict_inode() jbd: clear revoked flag on buffers before a new transaction started ext3: call ext3_mark_recovery_complete() when recovery is really needed
| * ext3: replace ll_rw_block with other functionsZheng Liu2012-01-091-3/+6
| | | | | | | | | | | | | | | | ll_rw_block() is deprecated. Thus we replace it with other functions. CC: Jan Kara <jack@suse.cz> Signed-off-by: Zheng Liu <wenqing.lz@taobao.com> Signed-off-by: Jan Kara <jack@suse.cz>
* | ext[34]: avoid i_nlink warnings triggered by drop_nlink/inc_nlink kludge in ↵Al Viro2012-01-091-1/+1
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | symlink() Both ext3 and ext4 put the half-created symlink inode into the orphan list for a while (see the comment in ext[34]_symlink() for gory details). Then, if everything went fine, they pull it out of the orphan list and bump the link count back to 1. The thing is, inc_nlink() is going to complain about seeing somebody changing i_nlink from 0 to 1. With a good reason, since normally something like that is a bug. Explicit set_nlink(inode, 1) does the same thing as inc_nlink() here, but it does *not* complain - exactly because it should be usable in strange situations like this one. Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
* | switch ->mknod() to umode_tAl Viro2012-01-041-1/+1
| | | | | | | | Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
* | switch ->create() to umode_tAl Viro2012-01-041-1/+1
| | | | | | | | | | | | | | | | 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>
* | switch vfs_mkdir() and ->mkdir() to umode_tAl Viro2012-01-041-1/+1
|/ | | | | | | 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>
* filesystems: add set_nlink()Miklos Szeredi2011-11-021-2/+2
| | | | | | | | | Replace remaining direct i_nlink updates with a new set_nlink() updater function. Signed-off-by: Miklos Szeredi <mszeredi@suse.cz> Tested-by: Toshiyuki Okajima <toshi.okajima@jp.fujitsu.com> Signed-off-by: Christoph Hellwig <hch@lst.de>
* filesystems: add missing nlink wrappersMiklos Szeredi2011-11-021-1/+1
| | | | | | | Replace direct i_nlink updates with the respective updater function (inc_nlink, drop_nlink, clear_nlink, inode_dec_link_count). Signed-off-by: Miklos Szeredi <mszeredi@suse.cz>
* block: separate priority boosting from REQ_METAChristoph Hellwig2011-08-231-1/+2
| | | | | | | | | | | | Add a new REQ_PRIO to let requests preempt others in the cfq I/O schedule, and lave REQ_META purely for marking requests as metadata in blktrace. All existing callers of REQ_META except for XFS are updated to also set REQ_PRIO for now. Signed-off-by: Christoph Hellwig <hch@lst.de> Reviewed-by: Namhyung Kim <namhyung@gmail.com> Signed-off-by: Jens Axboe <jaxboe@fusionio.com>
* block: remove READ_META and WRITE_METAChristoph Hellwig2011-08-231-1/+1
| | | | | | | | Replace all occurnanced of the undocumented READ_META with READ | REQ_META and remove the unused WRITE_META define. Signed-off-by: Christoph Hellwig <hch@lst.de> Signed-off-by: Jens Axboe <jaxboe@fusionio.com>
* ext3: Properly count journal credits for long symlinksEric Sandeen2011-08-121-2/+4
| | | | | | | | | | | | | | | | | | | | | Commit ae54870a1dc9 ("ext3: Fix lock inversion in ext3_symlink()") recalculated the number of credits needed for a long symlink, in the process of splitting it into two transactions. However, the first credit calculation under-counted because if selinux is enabled, credits are needed to create the selinux xattr as well. Overrunning the reservation will result in an OOPS in journal_dirty_metadata() due to this assert: J_ASSERT_JH(jh, handle->h_buffer_credits > 0); Fix this by increasing the reservation size. Signed-off-by: Eric Sandeen <sandeen@redhat.com> Reviewed-by: Jan Kara <jack@suse.cz> Acked-by: "Theodore Ts'o" <tytso@mit.edu> Cc: stable@kernel.org Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
* Merge branch 'for_linus' of ↵Linus Torvalds2011-07-261-2/+5
|\ | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | git://git.kernel.org/pub/scm/linux/kernel/git/jack/linux-fs-2.6 * 'for_linus' of git://git.kernel.org/pub/scm/linux/kernel/git/jack/linux-fs-2.6: jbd: change the field "b_cow_tid" of struct journal_head from type unsigned to tid_t ext3.txt: update the links in the section "useful links" to the latest ones ext3: Fix data corruption in inodes with journalled data ext2: check xattr name_len before acquiring xattr_sem in ext2_xattr_get ext3: Fix compilation with -DDX_DEBUG quota: Remove unused declaration jbd: Use WRITE_SYNC in journal checkpoint. jbd: Fix oops in journal_remove_journal_head() ext3: Return -EINVAL when start is beyond the end of fs in ext3_trim_fs() ext3/ioctl.c: silence sparse warnings about different address spaces ext3/ext4 Documentation: remove bh/nobh since it has been deprecated ext3: Improve truncate error handling ext3: use proper little-endian bitops ext2: include fs.h into ext2_fs.h ext3: Fix oops in ext3_try_to_allocate_with_rsv() jbd: fix a bug of leaking jh->b_jcount jbd: remove dependency on __GFP_NOFAIL ext3: Convert ext3 to new truncate calling convention jbd: Add fixed tracepoints ext3: Add fixed tracepoints Resolve conflicts in fs/ext3/fsync.c due to fsync locking push-down and new fixed tracepoints.
| * ext3: Fix compilation with -DDX_DEBUGBernd Schubert2011-07-201-2/+2
| | | | | | | | | | | | | | | | Compilation of ext3/namei.c brought up an error and warning messages when compiled with -DDX_DEBUG. Signed-off-by: Bernd Schubert<bernd.schubert@itwm.fraunhofer.de> Signed-off-by: Jan Kara <jack@suse.cz>
| * ext3: Add fixed tracepointsLukas Czerner2011-06-251-0/+3
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | This commit adds fixed tracepoints to the ext3 code. It is based on ext4 tracepoints, however due to the differences of both file systems, there are some tracepoints missing (those for delaloc and for multi-block allocator) and there are some ext3 specific as well (for reservation windows). Here is a list: ext3_free_inode ext3_request_inode ext3_allocate_inode ext3_evict_inode ext3_drop_inode ext3_mark_inode_dirty ext3_write_begin ext3_ordered_write_end ext3_writeback_write_end ext3_journalled_write_end ext3_ordered_writepage ext3_writeback_writepage ext3_journalled_writepage ext3_readpage ext3_releasepage ext3_invalidatepage ext3_discard_blocks ext3_request_blocks ext3_allocate_blocks ext3_free_blocks ext3_sync_file_enter ext3_sync_file_exit ext3_sync_fs ext3_rsv_window_add ext3_discard_reservation ext3_alloc_new_reservation ext3_reserved ext3_forget ext3_read_block_bitmap ext3_direct_IO_enter ext3_direct_IO_exit ext3_unlink_enter ext3_unlink_exit ext3_truncate_enter ext3_truncate_exit ext3_get_blocks_enter ext3_get_blocks_exit ext3_load_inode Signed-off-by: Lukas Czerner <lczerner@redhat.com> Cc: Jan Kara <jack@suse.cz> Signed-off-by: Jan Kara <jack@suse.cz>
* | fs: take the ACL checks to common codeChristoph Hellwig2011-07-251-2/+2
| | | | | | | | | | | | | | | | | | Replace the ->check_acl method with a ->get_acl method that simply reads an ACL from disk after having a cache miss. This means we can replace the ACL checking boilerplate code with a single implementation in namei.c. Signed-off-by: Christoph Hellwig <hch@lst.de> Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
* | make d_splice_alias(ERR_PTR(err), dentry) = ERR_PTR(err)Al Viro2011-07-201-9/+5
|/ | | | | | ... and simplify the living hell out of callers Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
* ext3: Fix fs corruption when make_indexed_dir() failsJan Kara2011-05-171-3/+12
| | | | | | | | | | | | When make_indexed_dir() fails (e.g. because of ENOSPC) after it has allocated block for index tree root, we did not properly mark all changed buffers dirty. This lead to only some of these buffers being written out and thus effectively corrupting the directory. Fix the issue by marking all changed data dirty even in the error failure case. CC: stable@kernel.org Signed-off-by: Jan Kara <jack@suse.cz>
* ext3: Fix lock inversion in ext3_symlink()Jan Kara2011-04-291-11/+56
| | | | | | | | | | | | | | | ext3_symlink() cannot call __page_symlink() with transaction open. __page_symlink() calls ext3_write_begin() which gets page lock which ranks above transaction start (thus lock ordering is violated) and and also ext3_write_begin() waits for a transaction commit when we run out of space which never happens if we hold transaction open. Fix the problem by stopping a transaction before calling __page_symlink() (we have to be careful and put inode to orphan list so that it gets deleted in case of crash) and starting another one after __page_symlink() returns for addition of symlink into a directory. Signed-off-by: Jan Kara <jack@suse.cz>
* Merge branch 'for_linus' of ↵Linus Torvalds2011-03-181-1/+1
|\ | | | | | | | | | | | | | | | | | | | | | | | | | | git://git.kernel.org/pub/scm/linux/kernel/git/jack/linux-fs-2.6 * 'for_linus' of git://git.kernel.org/pub/scm/linux/kernel/git/jack/linux-fs-2.6: ext3: Always set dx_node's fake_dirent explicitly. ext3: Fix an overflow in ext3_trim_fs. jbd: Remove one to many n's in a word. ext3: skip orphan cleanup on rocompat fs ext2: Fix link count corruption under heavy link+rename load ext3: speed up group trim with the right free block count. ext3: Adjust trim start with first_data_block. quota: return -ENOMEM when memory allocation fails
| * ext3: Always set dx_node's fake_dirent explicitly.Eric Sandeen2011-03-071-1/+1
| | | | | | | | | | | | | | | | | | | | | | | | | | | | (crossport of 1f7bebb9e911d870fa8f997ddff838e82b5715ea by Andreas Schlick <schlick@lavabit.com>) When ext3_dx_add_entry() has to split an index node, it has to ensure that name_len of dx_node's fake_dirent is also zero, because otherwise e2fsck won't recognise it as an intermediate htree node and consider the htree to be corrupted. CC: stable@kernel.org Signed-off-by: Eric Sandeen <sandeen@redhat.com> Signed-off-by: Jan Kara <jack@suse.cz>
* | Merge branch 'for-linus' of ↵Linus Torvalds2011-03-161-4/+4
|\ \ | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | git://git.kernel.org/pub/scm/linux/kernel/git/jmorris/security-testing-2.6 * 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/jmorris/security-testing-2.6: (33 commits) AppArmor: kill unused macros in lsm.c AppArmor: cleanup generated files correctly KEYS: Add an iovec version of KEYCTL_INSTANTIATE KEYS: Add a new keyctl op to reject a key with a specified error code KEYS: Add a key type op to permit the key description to be vetted KEYS: Add an RCU payload dereference macro AppArmor: Cleanup make file to remove cruft and make it easier to read SELinux: implement the new sb_remount LSM hook LSM: Pass -o remount options to the LSM SELinux: Compute SID for the newly created socket SELinux: Socket retains creator role and MLS attribute SELinux: Auto-generate security_is_socket_class TOMOYO: Fix memory leak upon file open. Revert "selinux: simplify ioctl checking" selinux: drop unused packet flow permissions selinux: Fix packet forwarding checks on postrouting selinux: Fix wrong checks for selinux_policycap_netpeer selinux: Fix check for xfrm selinux context algorithm ima: remove unnecessary call to ima_must_measure IMA: remove IMA imbalance checking ...
| * \ Merge branch 'master' of git://git.infradead.org/users/eparis/selinux into nextJames Morris2011-03-081-4/+4
| |\ \ | | |/ | |/|
| | * fs/vfs/security: pass last path component to LSM on inode creationEric Paris2011-02-011-4/+4
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | SELinux would like to implement a new labeling behavior of newly created inodes. We currently label new inodes based on the parent and the creating process. This new behavior would also take into account the name of the new object when deciding the new label. This is not the (supposed) full path, just the last component of the path. This is very useful because creating /etc/shadow is different than creating /etc/passwd but the kernel hooks are unable to differentiate these operations. We currently require that userspace realize it is doing some difficult operation like that and than userspace jumps through SELinux hoops to get things set up correctly. This patch does not implement new behavior, that is obviously contained in a seperate SELinux patch, but it does pass the needed name down to the correct LSM hook. If no such name exists it is fine to pass NULL. Signed-off-by: Eric Paris <eparis@redhat.com>
* | | fs: Remove i_nlink check from file system link callbackAneesh Kumar K.V2011-03-151-7/+0
|/ / | | | | | | | | | | | | | | Now that VFS check for inode->i_nlink == 0 and returns proper error, remove similar check from file system Signed-off-by: Aneesh Kumar K.V <aneesh.kumar@linux.vnet.ibm.com> Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
* | ext3: Remove redundant unlikely()Tobias Klauser2011-01-101-1/+1
| | | | | | | | | | | | | | IS_ERR() already implies unlikely(), so it can be omitted here. Signed-off-by: Tobias Klauser <tklauser@distanz.ch> Signed-off-by: Jan Kara <jack@suse.cz>
* | ext3: Add more journal error checkNamhyung Kim2011-01-101-1/+3
| | | | | | | | | | | | | | | | Check return value of ext3_journal_get_write_acccess() and ext3_journal_dirty_metadata(). Signed-off-by: Namhyung Kim <namhyung@gmail.com> Signed-off-by: Jan Kara <jack@suse.cz>
* | ext3: Add journal error check into ext3_rename()Namhyung Kim2011-01-061-4/+15
| | | | | | | | | | | | | | | | Check return value of ext3_journal_get_write_access() and ext3_journal_dirty_metadata(). Signed-off-by: Namhyung Kim <namhyung@gmail.com> Signed-off-by: Jan Kara <jack@suse.cz>
* | ext3: Use search_dirblock() in ext3_dx_find_entry()Theodore Ts'o2011-01-061-21/+12
| | | | | | | | | | | | | | | | | | | | Use the search_dirblock() in ext3_dx_find_entry(). It makes the code easier to read, and it takes advantage of common code. It also saves 100 bytes or so of text space. Signed-off-by: "Theodore Ts'o" <tytso@mit.edu> Cc: Brad Spengler <spender@grsecurity.net> Signed-off-by: Jan Kara <jack@suse.cz>
* | ext3: Avoid uninitialized memory references with a corrupted htree directoryTheodore Ts'o2011-01-061-15/+15
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | If the first htree directory is missing '.' or '..' but is otherwise a valid directory, and we do a lookup for '.' or '..', it's possible to dereference an uninitialized memory pointer in ext3_htree_next_block(). Avoid this. We avoid this by moving the special case from ext3_dx_find_entry() to ext3_find_entry(); this also means we can optimize ext3_find_entry() slightly when NFS looks up "..". Thanks to Brad Spengler for pointing a Clang warning that led me to look more closely at this code. The warning was harmless, but it was useful in pointing out code that was too ugly to live. This warning was also reported by Roman Borisov. Signed-off-by: "Theodore Ts'o" <tytso@mit.edu> Cc: Jan Kara <jack@suse.cz> Cc: Brad Spengler <spender@grsecurity.net> Signed-off-by: Jan Kara <jack@suse.cz>
* | ext3: Add journal error check into ext3_delete_entry()Namhyung Kim2011-01-061-2/+12
| | | | | | | | | | | | | | | | Check return value of ext3_journal_get_write_access() and ext3_journal_dirty_metadata(). Signed-off-by: Namhyung Kim <namhyung@gmail.com> Signed-off-by: Jan Kara <jack@suse.cz>
* | ext3: Add error check in ext3_mkdir()Namhyung Kim2011-01-061-14/+22
|/ | | | | | | | | Check return value of ext3_journal_get_write_access, ext3_journal_dirty_metadata and ext3_mark_inode_dirty. Consolidate error path under new label 'out_clear_inode' and adjust bh releasing appropriately. Signed-off-by: Namhyung Kim <namhyung@gmail.com> Signed-off-by: Jan Kara <jack@suse.cz>
* new helper: ihold()Al Viro2010-10-261-1/+1
| | | | | | Clones an existing reference to inode; caller must already hold one. Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
* ext3: Fix set but unused variablesAndi Kleen2010-07-211-2/+1
| | | | | | | | | [tytso@mit.edu: Fix compilation with CONFIG_JBD_DEBUG enabled] Acked-by: tytso@mit.edu cc: linux-ext4@vger.kernel.org Signed-off-by: Andi Kleen <ak@linux.intel.com> Signed-off-by: Jan Kara <jack@suse.cz>
* dquot: cleanup dquot initialize routineChristoph Hellwig2010-03-051-12/+12
| | | | | | | | | | | | Get rid of the initialize dquot operation - it is now always called from the filesystem and if a filesystem really needs it's own (which none currently does) it can just call into it's own routine directly. Rename the now static low-level dquot_initialize helper to __dquot_initialize and vfs_dq_init to dquot_initialize to have a consistent namespace. Signed-off-by: Christoph Hellwig <hch@lst.de> Signed-off-by: Jan Kara <jack@suse.cz>
* dquot: move dquot initialization responsibility into the filesystemChristoph Hellwig2010-03-051-0/+18
| | | | | | | | | | | | | | | | | | | | | | | | Currently various places in the VFS call vfs_dq_init directly. This means we tie the quota code into the VFS. Get rid of that and make the filesystem responsible for the initialization. For most metadata operations this is a straight forward move into the methods, but for truncate and open it's a bit more complicated. For truncate we currently only call vfs_dq_init for the sys_truncate case because open already takes care of it for ftruncate and open(O_TRUNC) - the new code causes an additional vfs_dq_init for those which is harmless. For open the initialization is moved from do_filp_open into the open method, which means it happens slightly earlier now, and only for regular files. The latter is fine because we don't need to initialize it for operations on special files, and we already do it as part of the namespace operations for directories. Add a dquot_file_open helper that filesystems that support generic quotas can use to fill in ->open. Signed-off-by: Christoph Hellwig <hch@lst.de> Signed-off-by: Jan Kara <jack@suse.cz>
* ext3: Replace lock/unlock_super() with an explicit lock for the orphan listEric Sandeen2009-12-231-9/+11
| | | | | | | | | | | | Use a separate lock to protect the orphan list, so we can stop overloading the use of lock_super(). Port of ext4 commit 3b9d4ed26680771295d904a6b83e88e620780893 by Theodore Ts'o <tytso@mit.edu>. CC: Theodore Ts'o <tytso@mit.edu> Signed-off-by: Eric Sandeen <sandeen@redhat.com> Signed-off-by: Jan Kara <jack@suse.cz>
* ext3: quota macros cleanup [V2]Dmitry Monakhov2009-12-231-4/+4
| | | | | | | | | | Currently all quota block reservation macros contains hardcoded "2" aka MAXQUOTAS value. This is no good because in some places it is not obvious to understand what does this digit represent. Let's introduce new macro with self descriptive name. Signed-off-by: Dmitry Monakhov <dmonakhov@openvz.org> Signed-off-by: Jan Kara <jack@suse.cz>
* ext[234]: move over to 'check_acl' permission modelLinus Torvalds2009-09-081-2/+2
| | | | | | | | | | Don't implement per-filesystem 'extX_permission()' functions that have to be called for every path component operation, and instead just expose the actual ACL checking so that the VFS layer can now do it for us. Reviewed-by: James Morris <jmorris@namei.org> Acked-by: Serge Hallyn <serue@us.ibm.com> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
* Merge branch 'ext3-latency-fixes' of ↵Linus Torvalds2009-04-031-1/+5
|\ | | | | | | | | | | | | | | | | | | git://git.kernel.org/pub/scm/linux/kernel/git/tytso/ext4 * 'ext3-latency-fixes' of git://git.kernel.org/pub/scm/linux/kernel/git/tytso/ext4: ext3: Add replace-on-rename hueristics for data=writeback mode ext3: Add replace-on-truncate hueristics for data=writeback mode ext3: Use WRITE_SYNC for commits which are caused by fsync() block_write_full_page: Use synchronous writes for WBC_SYNC_ALL writebacks
| * ext3: Add replace-on-rename hueristics for data=writeback modeTheodore Ts'o2009-04-031-1/+5
| | | | | | | | | | | | | | | | | | | | In data=writeback mode, start an asynchronous flush when renaming a file on top of an already-existing file. This lowers the probability of data loss in the case of applications that attempt to replace a file via using rename(). Signed-off-by: "Theodore Ts'o" <tytso@mit.edu>
* | ext3: return -EIO not -ESTALE on directory traversal through deleted inodeBryan Donlan2009-04-031-2/+10
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | ext3_iget() returns -ESTALE if invoked on a deleted inode, in order to report errors to NFS properly. However, in ext[234]_lookup(), this -ESTALE can be propagated to userspace if the filesystem is corrupted such that a directory entry references a deleted inode. This leads to a misleading error message - "Stale NFS file handle" - and confusion on the part of the admin. The bug can be easily reproduced by creating a new filesystem, making a link to an unused inode using debugfs, then mounting and attempting to ls -l said link. This patch thus changes ext3_lookup to return -EIO if it receives -ESTALE from ext3_iget(), as ext3 does for other filesystem metadata corruption; and also invokes the appropriate ext*_error functions when this case is detected. Signed-off-by: Bryan Donlan <bdonlan@gmail.com> Cc: <linux-ext4@vger.kernel.org> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
* | ext3: use unsigned instead of int for type of blocksize in fs/ext3/namei.cWei Yongjun2009-04-031-8/+9
| | | | | | | | | | | | | | | | | | | | Use unsigned instead of int for the parameter which carries a blocksize. [akpm@linux-foundation.org: coding-style fixes] Signed-off-by: Wei Yongjun <yjwei@cn.fujitsu.com> Cc: Theodore Ts'o <tytso@mit.edu> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
* | ext3: Use lowercase names of quota functionsJan Kara2009-03-261-3/+3
|/ | | | | | | Use lowercase names of quota functions instead of old uppercase ones. Signed-off-by: Jan Kara <jack@suse.cz> CC: linux-ext4@vger.kernel.org
* ext3: Add sanity check to make_indexed_dirTheodore Ts'o2009-01-161-6/+14
| | | | | | | | | | | | | | Make sure the rec_len field in the '..' entry is sane, lest we overrun the directory block and cause a kernel oops on a purposefully corrupted filesystem. This fixes a bug related to a bug originally reported by Sami Liedes for ext4 at: http://bugzilla.kernel.org/show_bug.cgi?id=12430 Signed-off-by: "Theodore Ts'o" <tytso@mit.edu> Cc: stable@kernel.org
* Merge branch 'for_linus' of ↵Linus Torvalds2009-01-091-2/+9
|\ | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | 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: (57 commits) jbd2: Fix oops in jbd2_journal_init_inode() on corrupted fs ext4: Remove "extents" mount option block: Add Kconfig help which notes that ext4 needs CONFIG_LBD ext4: Make printk's consistently prefixed with "EXT4-fs: " ext4: Add sanity checks for the superblock before mounting the filesystem ext4: Add mount option to set kjournald's I/O priority jbd2: Submit writes to the journal using WRITE_SYNC jbd2: Add pid and journal device name to the "kjournald2 starting" message ext4: Add markers for better debuggability ext4: Remove code to create the journal inode ext4: provide function to release metadata pages under memory pressure ext3: provide function to release metadata pages under memory pressure add releasepage hooks to block devices which can be used by file systems ext4: Fix s_dirty_blocks_counter if block allocation failed with nodelalloc ext4: Init the complete page while building buddy cache ext4: Don't allow new groups to be added during block allocation ext4: mark the blocks/inode bitmap beyond end of group as used ext4: Use new buffer_head flag to check uninit group bitmaps initialization ext4: Fix the race between read_inode_bitmap() and ext4_new_inode() ext4: code cleanup ...
| * ext3/4: Fix loop index in do_split() so it is signedTheodore Ts'o2008-12-061-2/+2
| | | | | | | | | | | | | | | | | | | | This fixes a gcc warning but it doesn't appear able to result in a failure, since the primary way the loop is exited is the first conditional in the for loop, and at least for a consistent filesystem, the signed/unsigned should in practice never be exposed. Signed-off-by: Roel Kluin <roel.kluin@gmail.com> Signed-off-by: "Theodore Ts'o" <tytso@mit.edu>
| * ext3: Add support for non-native signed/unsigned htree hash algorithmsTheodore Ts'o2008-10-281-0/+7
| | | | | | | | | | | | | | | | | | | | | | | | The original ext3 hash algorithms assumed that variables of type char were signed, as God and K&R intended. Unfortunately, this assumption is not true on some architectures. Userspace support for marking filesystems with non-native signed/unsigned chars was added two years ago, but the kernel-side support was never added (until now). Signed-off-by: "Theodore Ts'o" <tytso@mit.edu> Cc: akpm@linux-foundation.org Cc: linux-kernel@vger.kernel.org
* | generic swap(): ext3: remove local swap() macroWu Fengguang2009-01-081-4/+0
|/ | | | | | | | | Use the new generic implementation. Signed-off-by: Wu Fengguang <fengguang.wu@intel.com> Cc: Theodore Ts'o <tytso@mit.edu> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
* fs: symlink write_begin allocation context fixNick Piggin2009-01-041-2/+1
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | With the write_begin/write_end aops, page_symlink was broken because it could no longer pass a GFP_NOFS type mask into the point where the allocations happened. They are done in write_begin, which would always assume that the filesystem can be entered from reclaim. This bug could cause filesystem deadlocks. The funny thing with having a gfp_t mask there is that it doesn't really allow the caller to arbitrarily tinker with the context in which it can be called. It couldn't ever be GFP_ATOMIC, for example, because it needs to take the page lock. The only thing any callers care about is __GFP_FS anyway, so turn that into a single flag. Add a new flag for write_begin, AOP_FLAG_NOFS. Filesystems can now act on this flag in their write_begin function. Change __grab_cache_page to accept a nofs argument as well, to honour that flag (while we're there, change the name to grab_cache_page_write_begin which is more instructive and does away with random leading underscores). This is really a more flexible way to go in the end anyway -- if a filesystem happens to want any extra allocations aside from the pagecache ones in ints write_begin function, it may now use GFP_KERNEL (rather than GFP_NOFS) for common case allocations (eg. ocfs2_alloc_write_ctxt, for a random example). [kosaki.motohiro@jp.fujitsu.com: fix ubifs] [kosaki.motohiro@jp.fujitsu.com: fix fuse] Signed-off-by: Nick Piggin <npiggin@suse.de> Reviewed-by: KOSAKI Motohiro <kosaki.motohiro@jp.fujitsu.com> Cc: <stable@kernel.org> [2.6.28.x] Signed-off-by: KOSAKI Motohiro <kosaki.motohiro@jp.fujitsu.com> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> [ Cleaned up the calling convention: just pass in the AOP flags untouched to the grab_cache_page_write_begin() function. That just simplifies everybody, and may even allow future expansion of the logic. - Linus ] Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
* nfsd race fixes: ext3Al Viro2009-01-011-1/+14
| | | | | | ext3 analog of the previous patch Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
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