- 23 7月, 2012 1 次提交
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由 Al Viro 提交于
d_instantiate(dentry, inode); unlock_new_inode(inode); is a bad idea; do it the other way round... Signed-off-by: NAl Viro <viro@zeniv.linux.org.uk>
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- 14 7月, 2012 2 次提交
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由 Al Viro 提交于
boolean "does it have to be exclusive?" flag is passed instead; Local filesystem should just ignore it - the object is guaranteed not to be there yet. Signed-off-by: NAl Viro <viro@zeniv.linux.org.uk>
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由 Al Viro 提交于
Just the flags; only NFS cares even about that, but there are legitimate uses for such argument. And getting rid of that completely would require splitting ->lookup() into a couple of methods (at least), so let's leave that alone for now... Signed-off-by: NAl Viro <viro@zeniv.linux.org.uk>
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- 11 5月, 2012 1 次提交
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由 Linus Torvalds 提交于
This allows comparing hash and len in one operation on 64-bit architectures. Right now only __d_lookup_rcu() takes advantage of this, since that is the case we care most about. The use of anonymous struct/unions hides the alternate 64-bit approach from most users, the exception being a few cases where we initialize a 'struct qstr' with a static initializer. This makes the problematic cases use a new QSTR_INIT() helper function for that (but initializing just the name pointer with a "{ .name = xyzzy }" initializer remains valid, as does just copying another qstr structure). Signed-off-by: NLinus Torvalds <torvalds@linux-foundation.org>
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- 01 4月, 2012 1 次提交
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由 Al Viro 提交于
Signed-off-by: NAl Viro <viro@zeniv.linux.org.uk>
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- 09 1月, 2012 2 次提交
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由 Zheng Liu 提交于
ll_rw_block() is deprecated. Thus we replace it with other functions. CC: Jan Kara <jack@suse.cz> Signed-off-by: NZheng Liu <wenqing.lz@taobao.com> Signed-off-by: NJan Kara <jack@suse.cz>
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由 Al Viro 提交于
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: NAl Viro <viro@zeniv.linux.org.uk>
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- 04 1月, 2012 3 次提交
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由 Al Viro 提交于
Signed-off-by: NAl Viro <viro@zeniv.linux.org.uk>
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由 Al Viro 提交于
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: NAl Viro <viro@zeniv.linux.org.uk>
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由 Al Viro 提交于
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: NAl Viro <viro@zeniv.linux.org.uk>
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- 02 11月, 2011 2 次提交
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由 Miklos Szeredi 提交于
Replace remaining direct i_nlink updates with a new set_nlink() updater function. Signed-off-by: NMiklos Szeredi <mszeredi@suse.cz> Tested-by: NToshiyuki Okajima <toshi.okajima@jp.fujitsu.com> Signed-off-by: NChristoph Hellwig <hch@lst.de>
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由 Miklos Szeredi 提交于
Replace direct i_nlink updates with the respective updater function (inc_nlink, drop_nlink, clear_nlink, inode_dec_link_count). Signed-off-by: NMiklos Szeredi <mszeredi@suse.cz>
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- 23 8月, 2011 2 次提交
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由 Christoph Hellwig 提交于
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: NChristoph Hellwig <hch@lst.de> Reviewed-by: NNamhyung Kim <namhyung@gmail.com> Signed-off-by: NJens Axboe <jaxboe@fusionio.com>
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由 Christoph Hellwig 提交于
Replace all occurnanced of the undocumented READ_META with READ | REQ_META and remove the unused WRITE_META define. Signed-off-by: NChristoph Hellwig <hch@lst.de> Signed-off-by: NJens Axboe <jaxboe@fusionio.com>
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- 12 8月, 2011 1 次提交
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由 Eric Sandeen 提交于
Commit ae54870a ("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: NEric Sandeen <sandeen@redhat.com> Reviewed-by: NJan Kara <jack@suse.cz> Acked-by: N"Theodore Ts'o" <tytso@mit.edu> Cc: stable@kernel.org Signed-off-by: NLinus Torvalds <torvalds@linux-foundation.org>
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- 26 7月, 2011 1 次提交
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由 Christoph Hellwig 提交于
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: NChristoph Hellwig <hch@lst.de> Signed-off-by: NAl Viro <viro@zeniv.linux.org.uk>
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- 21 7月, 2011 1 次提交
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由 Bernd Schubert 提交于
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: NJan Kara <jack@suse.cz>
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- 20 7月, 2011 1 次提交
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由 Al Viro 提交于
... and simplify the living hell out of callers Signed-off-by: NAl Viro <viro@zeniv.linux.org.uk>
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- 25 6月, 2011 1 次提交
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由 Lukas Czerner 提交于
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: NLukas Czerner <lczerner@redhat.com> Cc: Jan Kara <jack@suse.cz> Signed-off-by: NJan Kara <jack@suse.cz>
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- 26 5月, 2011 3 次提交
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由 Sage Weil 提交于
ext3 has no problems with lingering references to unlinked directory inodes. CC: Jan Kara <jack@suse.cz> CC: Andrew Morton <akpm@linux-foundation.org> CC: Andreas Dilger <adilger.kernel@dilger.ca> CC: linux-ext4@vger.kernel.org Signed-off-by: NSage Weil <sage@newdream.net> Signed-off-by: NAl Viro <viro@zeniv.linux.org.uk>
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由 Sage Weil 提交于
Only a few file systems need this. Start by pushing it down into each rename method (except gfs2 and xfs) so that it can be dealt with on a per-fs basis. Acked-by: NChristoph Hellwig <hch@lst.de> Signed-off-by: NSage Weil <sage@newdream.net> Signed-off-by: NAl Viro <viro@zeniv.linux.org.uk>
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由 Sage Weil 提交于
Only a few file systems need this. Start by pushing it down into each fs rmdir method (except gfs2 and xfs) so it can be dealt with on a per-fs basis. This does not change behavior for any in-tree file systems. Acked-by: NChristoph Hellwig <hch@lst.de> Signed-off-by: NSage Weil <sage@newdream.net> Signed-off-by: NAl Viro <viro@zeniv.linux.org.uk>
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- 17 5月, 2011 1 次提交
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由 Jan Kara 提交于
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: NJan Kara <jack@suse.cz>
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- 30 4月, 2011 1 次提交
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由 Jan Kara 提交于
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: NJan Kara <jack@suse.cz>
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- 15 3月, 2011 1 次提交
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由 Aneesh Kumar K.V 提交于
Now that VFS check for inode->i_nlink == 0 and returns proper error, remove similar check from file system Signed-off-by: NAneesh Kumar K.V <aneesh.kumar@linux.vnet.ibm.com> Signed-off-by: NAl Viro <viro@zeniv.linux.org.uk>
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- 08 3月, 2011 1 次提交
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由 Eric Sandeen 提交于
(crossport of 1f7bebb9 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: NEric Sandeen <sandeen@redhat.com> Signed-off-by: NJan Kara <jack@suse.cz>
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- 02 2月, 2011 1 次提交
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由 Eric Paris 提交于
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: NEric Paris <eparis@redhat.com>
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- 11 1月, 2011 2 次提交
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由 Tobias Klauser 提交于
IS_ERR() already implies unlikely(), so it can be omitted here. Signed-off-by: NTobias Klauser <tklauser@distanz.ch> Signed-off-by: NJan Kara <jack@suse.cz>
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由 Namhyung Kim 提交于
Check return value of ext3_journal_get_write_acccess() and ext3_journal_dirty_metadata(). Signed-off-by: NNamhyung Kim <namhyung@gmail.com> Signed-off-by: NJan Kara <jack@suse.cz>
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- 06 1月, 2011 5 次提交
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由 Namhyung Kim 提交于
Check return value of ext3_journal_get_write_access() and ext3_journal_dirty_metadata(). Signed-off-by: NNamhyung Kim <namhyung@gmail.com> Signed-off-by: NJan Kara <jack@suse.cz>
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由 Theodore Ts'o 提交于
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: N"Theodore Ts'o" <tytso@mit.edu> Cc: Brad Spengler <spender@grsecurity.net> Signed-off-by: NJan Kara <jack@suse.cz>
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由 Theodore Ts'o 提交于
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: N"Theodore Ts'o" <tytso@mit.edu> Cc: Jan Kara <jack@suse.cz> Cc: Brad Spengler <spender@grsecurity.net> Signed-off-by: NJan Kara <jack@suse.cz>
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由 Namhyung Kim 提交于
Check return value of ext3_journal_get_write_access() and ext3_journal_dirty_metadata(). Signed-off-by: NNamhyung Kim <namhyung@gmail.com> Signed-off-by: NJan Kara <jack@suse.cz>
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由 Namhyung Kim 提交于
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: NNamhyung Kim <namhyung@gmail.com> Signed-off-by: NJan Kara <jack@suse.cz>
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- 26 10月, 2010 1 次提交
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由 Al Viro 提交于
Clones an existing reference to inode; caller must already hold one. Signed-off-by: NAl Viro <viro@zeniv.linux.org.uk>
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- 21 7月, 2010 1 次提交
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由 Andi Kleen 提交于
[tytso@mit.edu: Fix compilation with CONFIG_JBD_DEBUG enabled] Acked-by: tytso@mit.edu cc: linux-ext4@vger.kernel.org Signed-off-by: NAndi Kleen <ak@linux.intel.com> Signed-off-by: NJan Kara <jack@suse.cz>
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- 05 3月, 2010 2 次提交
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由 Christoph Hellwig 提交于
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: NChristoph Hellwig <hch@lst.de> Signed-off-by: NJan Kara <jack@suse.cz>
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由 Christoph Hellwig 提交于
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: NChristoph Hellwig <hch@lst.de> Signed-off-by: NJan Kara <jack@suse.cz>
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- 23 12月, 2009 2 次提交
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由 Eric Sandeen 提交于
Use a separate lock to protect the orphan list, so we can stop overloading the use of lock_super(). Port of ext4 commit 3b9d4ed2 by Theodore Ts'o <tytso@mit.edu>. CC: Theodore Ts'o <tytso@mit.edu> Signed-off-by: NEric Sandeen <sandeen@redhat.com> Signed-off-by: NJan Kara <jack@suse.cz>
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由 Dmitry Monakhov 提交于
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: NDmitry Monakhov <dmonakhov@openvz.org> Signed-off-by: NJan Kara <jack@suse.cz>
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