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* ->splice_write() via ->write_iter()Al Viro2014-06-12
| | | | | | | | | | iter_file_splice_write() - a ->splice_write() instance that gathers the pipe buffers, builds a bio_vec-based iov_iter covering those and feeds it to ->write_iter(). A bunch of simple cases coverted to that... [AV: fixed the braino spotted by Cyrill] Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
* write_iter variants of {__,}generic_file_aio_write()Al Viro2014-05-06
| | | | Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
* switch simple generic_file_aio_read() users to ->read_iter()Al Viro2014-05-06
| | | | Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
* ext2/3/4: use generic posix ACL infrastructureChristoph Hellwig2014-01-25
| | | | | | Signed-off-by: Christoph Hellwig <hch@lst.de> Reviewed-by: Jan Kara <jack@suse.cz> Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
* ext3: move headers to fs/ext3/Al Viro2012-03-31
| | | | Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
* Merge branch 'for_linus' of ↵Linus Torvalds2011-07-26
|\ | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | 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: Convert ext3 to new truncate calling conventionJan Kara2011-06-25
| | | | | | | | | | | | | | | | | | Mostly trivial conversion. We fix a bug that IS_IMMUTABLE and IS_APPEND files could not be truncated during failed writes as we change the code. In fact the test is not needed at all because both IS_IMMUTABLE and IS_APPEND is tested in upper layers in do_sys_[f]truncate(), may_write(), etc. Signed-off-by: Jan Kara <jack@suse.cz>
* | fs: take the ACL checks to common codeChristoph Hellwig2011-07-25
|/ | | | | | | | | 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>
* dquot: cleanup dquot initialize routineChristoph Hellwig2010-03-04
| | | | | | | | | | | | 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 Hellwig2010-03-04
| | | | | | | | | | | | | | | | | | | | | | | | 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: Use bitops to read/modify EXT3_I(inode)->i_stateJan Kara2010-03-04
| | | | | | | | | At several places we modify EXT3_I(inode)->i_state without holding i_mutex (ext3_release_file, ext3_bmap, ext3_journalled_writepage, ext3_do_update_inode, ...). These modifications are racy and we can lose updates to i_state. So convert handling of i_state to use bitops which are atomic. Signed-off-by: Jan Kara <jack@suse.cz>
* ext3: Remove syncing logic from ext3_file_writeJan Kara2009-09-14
| | | | | | | | Syncing is now properly done by generic_file_aio_write() so no special logic is needed in ext3. CC: linux-ext4@vger.kernel.org Signed-off-by: Jan Kara <jack@suse.cz>
* ext[234]: move over to 'check_acl' permission modelLinus Torvalds2009-09-08
| | | | | | | | | | 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 Torvalds2009-04-03
|\ | | | | | | | | | | | | | | | | | | 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-truncate hueristics for data=writeback modeTheodore Ts'o2009-04-03
| | | | | | | | | | | | | | | | | | In data=writeback mode, start an asynchronous flush when closing a file which had been previously truncated down to zero. This lowers the probability of data loss in the case of applications that attempt to replace a file using truncate. Signed-off-by: "Theodore Ts'o" <tytso@mit.edu>
* | ext3: remove the BKL in ext3/ioctl.cCyrus Massoumi2009-04-02
|/ | | | | | | | | | | Reformat ext3/ioctl.c to make it look more like ext4/ioctl.c and remove the BKL around ext3_ioctl(). Signed-off-by: Cyrus Massoumi <cyrusm@gmx.net> Cc: <linux-ext4@vger.kernel.org> Acked-by: Jan Kara <jack@ucw.cz> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
* generic block based fiemap implementationJosef Bacik2008-10-03
| | | | | | | | | | | | | | | | | | Any block based fs (this patch includes ext3) just has to declare its own fiemap() function and then call this generic function with its own get_block_t. This works well for block based filesystems that will map multiple contiguous blocks at one time, but will work for filesystems that only map one block at a time, you will just end up with an "extent" for each block. One gotcha is this will not play nicely where there is hole+data after the EOF. This function will assume its hit the end of the data as soon as it hits a hole after the EOF, so if there is any data past that it will not pick that up. AFAIK no block based fs does this anyway, but its in the comments of the function anyway just in case. Signed-off-by: Josef Bacik <jbacik@redhat.com> Signed-off-by: Mark Fasheh <mfasheh@suse.com> Signed-off-by: "Theodore Ts'o" <tytso@mit.edu> Cc: linux-fsdevel@vger.kernel.org
* sendfile: remove .sendfile from filesystems that use generic_file_sendfile()Jens Axboe2007-07-10
| | | | | | | They can use generic_file_splice_read() instead. Since sys_sendfile() now prefers that, there should be no change in behaviour. Signed-off-by: Jens Axboe <jens.axboe@oracle.com>
* [PATCH] mark struct inode_operations const 1Arjan van de Ven2007-02-12
| | | | | | | | | | | Many struct inode_operations in the kernel can be "const". Marking them const moves these to the .rodata section, which avoids false sharing with potential dirty data. In addition it'll catch accidental writes at compile time to these shared resources. Signed-off-by: Arjan van de Ven <arjan@linux.intel.com> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
* [PATCH] ext3: change uses of f_{dentry, vfsmnt} to use f_pathJosef "Jeff" Sipek2006-12-08
| | | | | | | | | Change all the uses of f_{dentry,vfsmnt} to f_path.{dentry,mnt} in the ext3 filesystem. Signed-off-by: Josef "Jeff" Sipek <jsipek@cs.sunysb.edu> Signed-off-by: Andrew Morton <akpm@osdl.org> Signed-off-by: Linus Torvalds <torvalds@osdl.org>
* [PATCH] Remove readv/writev methods and use aio_read/aio_write insteadBadari Pulavarty2006-10-01
| | | | | | | | | | This patch removes readv() and writev() methods and replaces them with aio_read()/aio_write() methods. Signed-off-by: Badari Pulavarty <pbadari@us.ibm.com> Signed-off-by: Christoph Hellwig <hch@lst.de> Signed-off-by: Andrew Morton <akpm@osdl.org> Signed-off-by: Linus Torvalds <torvalds@osdl.org>
* [PATCH] Vectorize aio_read/aio_write fileop methodsBadari Pulavarty2006-10-01
| | | | | | | | | | | | This patch vectorizes aio_read() and aio_write() methods to prepare for collapsing all aio & vectored operations into one interface - which is aio_read()/aio_write(). Signed-off-by: Badari Pulavarty <pbadari@us.ibm.com> Signed-off-by: Christoph Hellwig <hch@lst.de> Cc: Michael Holzheu <HOLZHEU@de.ibm.com> Signed-off-by: Andrew Morton <akpm@osdl.org> Signed-off-by: Linus Torvalds <torvalds@osdl.org>
* [PATCH] BLOCK: Move the Ext3 device ioctl compat stuff to the Ext3 driver ↵David Howells2006-09-30
| | | | | | | | | | [try #6] Move the Ext3 device ioctl compat stuff from fs/compat_ioctl.c to the Ext3 driver so that the Ext3 header file doesn't need to be included. Signed-Off-By: David Howells <dhowells@redhat.com> Signed-off-by: Jens Axboe <axboe@kernel.dk>
* [PATCH] ext3 and jbd cleanup: remove whitespaceMingming Cao2006-09-27
| | | | | | | | Remove whitespace from ext3 and jbd, before we clone ext4. Signed-off-by: Mingming Cao<cmm@us.ibm.com> Signed-off-by: Andrew Morton <akpm@osdl.org> Signed-off-by: Linus Torvalds <torvalds@osdl.org>
* [PATCH] Introduce sys_splice() system callJens Axboe2006-03-30
| | | | | | | | | | | | | | | | | | | | | | | This adds support for the sys_splice system call. Using a pipe as a transport, it can connect to files or sockets (latter as output only). From the splice.c comments: "splice": joining two ropes together by interweaving their strands. This is the "extended pipe" functionality, where a pipe is used as an arbitrary in-memory buffer. Think of a pipe as a small kernel buffer that you can use to transfer data from one end to the other. The traditional unix read/write is extended with a "splice()" operation that transfers data buffers to or from a pipe buffer. Named by Larry McVoy, original implementation from Linus, extended by Jens to support splicing to files and fixing the initial implementation bugs. Signed-off-by: Jens Axboe <axboe@suse.de> Signed-off-by: Linus Torvalds <torvalds@osdl.org>
* [PATCH] Make most file operations structs in fs/ constArjan van de Ven2006-03-28
| | | | | | | | | | | | | | This is a conversion to make the various file_operations structs in fs/ const. Basically a regexp job, with a few manual fixups The goal is both to increase correctness (harder to accidentally write to shared datastructures) and reducing the false sharing of cachelines with things that get dirty in .data (while .rodata is nicely read only and thus cache clean) Signed-off-by: Arjan van de Ven <arjan@infradead.org> Signed-off-by: Andrew Morton <akpm@osdl.org> Signed-off-by: Linus Torvalds <torvalds@osdl.org>
* [PATCH] convert ext3's truncate_sem to a mutexArjan van de Ven2006-03-23
| | | | | | | | | ext3's truncate_sem is always released in the same function it's taken and it otherwise is a mutex as well.. Signed-off-by: Arjan van de Ven <arjan@infradead.org> Signed-off-by: Andrew Morton <akpm@osdl.org> Signed-off-by: Linus Torvalds <torvalds@osdl.org>
* [PATCH] ext3: reduce allocate-with-reservation lock latenciesMingming Cao2005-06-29
| | | | | | | | | | | | | | | | | | | | | | | | Currently in ext3 block reservation code, the global filesystem reservation tree lock (rsv_block) is hold during the process of searching for a space to make a new reservation window, including while scaning the block bitmap to verify if the avalible window has a free block. Holding the lock during bitmap scan is unnecessary and could possibly cause scalability issue and latency issues. This patch tries to address this by dropping the lock before scan the bitmap. Before that we need to reserve the open window in case someone else is targetting at the same window. Question was should we reserve the whole free reservable space or just the window size we need. Reserve the whole free reservable space will possibly force other threads which intended to do block allocation nearby move to another block group(cause bad layout). In this patch, we just reserve the desired size before drop the lock and scan the block bitmap. This patch fixed a ext3 reservation latency issue seen on a cvs check out test. Patch is tested with many fsx, tiobench, dbench and untar a kernel test. Signed-Off-By: Mingming Cao <cmm@us.ibm.com> Signed-off-by: Andrew Morton <akpm@osdl.org> Signed-off-by: Linus Torvalds <torvalds@osdl.org>
* Linux-2.6.12-rc2v2.6.12-rc2Linus Torvalds2005-04-16
Initial git repository build. I'm not bothering with the full history, even though we have it. We can create a separate "historical" git archive of that later if we want to, and in the meantime it's about 3.2GB when imported into git - space that would just make the early git days unnecessarily complicated, when we don't have a lot of good infrastructure for it. Let it rip!
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