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* fat: Fix allow_utime optionOGAWA Hirofumi2008-08-02
| | | | | | | | FAT has to handle the newly introduced ATTR_TIMES_SET for allow_utime option. Signed-off-by: OGAWA Hirofumi <hirofumi@mail.parknet.co.jp> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
* [patch 3/4] fat: dont call notify_changeMiklos Szeredi2008-07-26
| | | | | | | | | | | | | | | | | | | The FAT_IOCTL_SET_ATTRIBUTES ioctl() calls notify_change() to change the file mode before changing the inode attributes. Replace with explicit calls to security_inode_setattr(), fat_setattr() and fsnotify_change(). This is equivalent to the original. The reason it is needed, is that later in the series we move the immutable check into notify_change(). That would break the FAT_IOCTL_SET_ATTRIBUTES ioctl, as it needs to perform the mode change regardless of the immutability of the file. [Fix error if fat is built as a module. Thanks to OGAWA Hirofumi for noticing.] Signed-off-by: Miklos Szeredi <mszeredi@suse.cz> Acked-by: OGAWA Hirofumi <hirofumi@mail.parknet.co.jp> Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
* Merge commit 'v2.6.26' into bkl-removalJonathan Corbet2008-07-14
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| * fat: relax the permission check of fat_setattr()OGAWA Hirofumi2008-06-12
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | New chmod() allows only acceptable permission, and if not acceptable, it returns -EPERM. Old one allows even if it can't store permission to on disk inode. But it seems too strict for users. E.g. https://bugzilla.redhat.com/show_bug.cgi?id=449080: With new one, rsync couldn't create the temporary file. So, this patch allows like old one, but now it doesn't change the permission if it can't store, and it returns 0. Also, this patch fixes missing check. Signed-off-by: OGAWA Hirofumi <hirofumi@mail.parknet.co.jp> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
* | Make FAT users happier by not deadlockingJonathan Corbet2008-07-02
| | | | | | | | | | | | | | | | The FAT BKL removal patch can cause deadlocks. It turns out that the new lock_super() calls are unneeded, remove them (as directed by Linus). Reported-by: "Tony Luck" <tony.luck@intel.com> Signed-off-by: Jonathan Corbet <corbet@lwn.net>
* | Replace BKL with superblock lock in fat/msdos/vfatLinus Torvalds2008-06-20
|/ | | | | | | | | | | | | | | | | | | This replaces the use of the BKL in the FAT family of filesystems with the existing superblock lock instead. The code already appears to do mostly proper locking with its own private spinlocks (and mutexes), but while the BKL could possibly have been dropped entirely, converting it to use the superblock lock (which is just a regular mutex) is the conservative thing to do. As a per-filesystem mutex, it not only won't have any of the possible latency issues related to the BKL, but the lock is obviously private to the particular filesystem instance and will thus not cause problems for entirely unrelated users like the BKL can. Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org> Cc: OGAWA Hirofumi <hirofumi@mail.parknet.co.jp> Signed-off-by: Jonathan Corbet <corbet@lwn.net>
* fs: replace remaining __FUNCTION__ occurrencesHarvey Harrison2008-04-30
| | | | | | | | __FUNCTION__ is gcc-specific, use __func__ Signed-off-by: Harvey Harrison <harvey.harrison@gmail.com> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
* fat: Add allow_utime optionOGAWA Hirofumi2008-04-28
| | | | | | | | | | | | Normally utime(2) checks current process is owner of the file, or it has CAP_FOWNER capability. But FAT filesystem doesn't have uid/gid as on disk info, so normal check is too unflexible. With this option you can relax it. Signed-off-by: OGAWA Hirofumi <hirofumi@mail.parknet.co.jp> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
* fat: fat_setattr() fixOGAWA Hirofumi2008-04-28
| | | | | | | | | | | | | | Fix fat_setattr() on the case of showexec option. If user specified showexec option, inode->i_mode may not have S_IXUGO. This just use inode->i_mode to fix it. And with this patch, we don't allow chmod() on memory inode, it's just bad behaviour. IOW, we allow changing S_IWUGO only which can be stored to disk. Signed-off-by: OGAWA Hirofumi <hirofumi@mail.parknet.co.jp> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
* fat: fat_notify_change() and check_mode() cleanupOGAWA Hirofumi2008-04-28
| | | | | | | | | | - Rename fat_notify_change() to fat_setattr() - check_mode() cleanup - Change layout of code Signed-off-by: OGAWA Hirofumi <hirofumi@mail.parknet.co.jp> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
* [PATCH] r/o bind mounts: elevate write count for ioctls()Dave Hansen2008-04-19
| | | | | | | | | | | | | Some ioctl()s can cause writes to the filesystem. Take these, and make them use mnt_want/drop_write() instead. [AV: updated] Acked-by: Al Viro <viro@ZenIV.linux.org.uk> Signed-off-by: Christoph Hellwig <hch@lst.de> Signed-off-by: Dave Hansen <haveblue@us.ibm.com> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
* fs/fat/: refine chmod checksJan Engelhardt2008-02-06
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | Prohibit mode changes in non-quiet mode that cannot be stored reliably with the on-disk format. Suppose a vfat filesystem is mounted with umask=0 and [not-quiet]. Then all files will have mode 0777. Trying to change the owner will fail, because fat does not know about owners or groups. chmod 0770, on the other hand, will succeed, even though fat does not know about the permission triplet [user/group/other]. So this patch changes fat's not-quiet behavior so that only UNIX modes are accepted that can be mapped lossless between the fat disk format and the local system. There is only one attribute, and that is the readonly attribute, which is mapped to the UNIX write permission bit(s). chmod 0555 is therefore valid (taking away the +w bits <=> setting the readonly attribute). Since chmod 0775 and chmod 0755 is an ambiguous case as to whether to set or clear the readonly bit, these modes are also denied. In quiet mode, chmod and chown will continue to "succeed" as they did before, meaning that a subsequent stat() will temporarily return the new mode as long as the inode is not reread from disk, and chown will silently do nothing, not even return the new uid/gid in stat(). Signed-off-by: Jan Engelhardt <jengelh@computergmbh.de> Cc: OGAWA Hirofumi <hirofumi@mail.parknet.co.jp> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.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] fat: 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 fat 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] fat: add fat_getattr()OGAWA Hirofumi2006-11-16
| | | | | | | | | This adds fat_getattr() for setting stat->blksize. (FAT uses the size of cluster for proper I/O) Signed-off-by: OGAWA Hirofumi <hirofumi@mail.parknet.co.jp> Signed-off-by: Andrew Morton <akpm@osdl.org> Signed-off-by: Linus Torvalds <torvalds@osdl.org>
* [PATCH] separate bdi congestion functions from queue congestion functionsAndrew Morton2006-10-20
| | | | | | | | | | | | | | | | | | | Separate out the concept of "queue congestion" from "backing-dev congestion". Congestion is a backing-dev concept, not a queue concept. The blk_* congestion functions are retained, as wrappers around the core backing-dev congestion functions. This proper layering is needed so that NFS can cleanly use the congestion functions, and so that CONFIG_BLOCK=n actually links. Cc: "Thomas Maier" <balagi@justmail.de> Cc: "Jens Axboe" <jens.axboe@oracle.com> Cc: Trond Myklebust <trond.myklebust@fys.uio.no> Cc: David Howells <dhowells@redhat.com> Cc: Peter Osterlund <petero2@telia.com> 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] add -o flush for fatChris Mason2006-09-29
| | | | | | | | | | | Fat is commonly used on removable media. Mounting with -o flush tells the FS to write things to disk as quickly as possible. It is like -o sync, but much faster (and not as safe). Signed-off-by: Chris Mason <mason@suse.com> Cc: OGAWA Hirofumi <hirofumi@mail.parknet.co.jp> Signed-off-by: Andrew Morton <akpm@osdl.org> 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] fat: Fix truncate() write orderingOGAWA Hirofumi2006-02-03
| | | | | | | | | | | The truncate() should write the file size before writing the new EOF entry. This patch fixes it. This bug was pointed out by Machida Hiroyuki. Signed-off-by: OGAWA Hirofumi <hirofumi@mail.parknet.co.jp> Signed-off-by: Andrew Morton <akpm@osdl.org> Signed-off-by: Linus Torvalds <torvalds@osdl.org>
* [PATCH] capable/capability.h (fs/)Randy Dunlap2006-01-11
| | | | | | | | | fs: Use <linux/capability.h> where capable() is used. Signed-off-by: Randy Dunlap <rdunlap@xenotime.net> Acked-by: Tim Schmielau <tim@physik3.uni-rostock.de> Signed-off-by: Andrew Morton <akpm@osdl.org> Signed-off-by: Linus Torvalds <torvalds@osdl.org>
* [PATCH] mutex subsystem, semaphore to mutex: VFS, ->i_semJes Sorensen2006-01-09
| | | | | | | | | | | | | This patch converts the inode semaphore to a mutex. I have tested it on XFS and compiled as much as one can consider on an ia64. Anyway your luck with it might be different. Modified-by: Ingo Molnar <mingo@elte.hu> (finished the conversion) Signed-off-by: Jes Sorensen <jes@sgi.com> Signed-off-by: Ingo Molnar <mingo@elte.hu>
* [PATCH] fat: support a truncate() for expanding size (generic_cont_expand)OGAWA Hirofumi2006-01-08
| | | | | | | | | | | | | | | | | | | | | | This patch changes generic_cont_expand(), in order to share the code with fatfs. - Use vmtruncate() if ->prepare_write() returns a error. Even if ->prepare_write() returns an error, it may already have added some blocks. So, this truncates blocks outside of ->i_size by vmtruncate(). - Add generic_cont_expand_simple(). The generic_cont_expand_simple() assumes that ->prepare_write() can handle the block boundary. With this, we don't need to care the extra byte. And for expanding a file size by truncate(), fatfs uses the added generic_cont_expand_simple(). Signed-off-by: OGAWA Hirofumi <hirofumi@mail.parknet.co.jp> Signed-off-by: Andrew Morton <akpm@osdl.org> Signed-off-by: Linus Torvalds <torvalds@osdl.org>
* [PATCH] fat: s/EXPORT_SYMBOL/EXPORT_SYMBOL_GPL/OGAWA Hirofumi2006-01-08
| | | | | | | | All EXPORT_SYMBOL of fatfs is only for vfat/msdos. _GPL would be proper. Signed-off-by: OGAWA Hirofumi <hirofumi@mail.parknet.co.jp> Signed-off-by: Andrew Morton <akpm@osdl.org> Signed-off-by: Linus Torvalds <torvalds@osdl.org>
* [PATCH] FAT: miss-sync issues on sync mount (miss-sync on write)OGAWA Hirofumi2005-09-17
| | | | | | | | | | | This patch fixes miss-sync issue on write() system call. This updates inode attrs flags, mtime and ctime on every comit_write call, due to locking. Signed-off-by: Hiroyuki Machida <machida@sm.sony.co.jp> Signed-off-by: OGAWA Hirofumi <hirofumi@mail.parknet.co.jp> 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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