aboutsummaryrefslogtreecommitdiffstats
path: root/fs/fat
Commit message (Collapse)AuthorAge
* remove SWRITE* I/O typesChristoph Hellwig2010-08-18
| | | | | | | | | | | | | | | | | These flags aren't real I/O types, but tell ll_rw_block to always lock the buffer instead of giving up on a failed trylock. Instead add a new write_dirty_buffer helper that implements this semantic and use it from the existing SWRITE* callers. Note that the ll_rw_block code had a bug where it didn't promote WRITE_SYNC_PLUG properly, which this patch fixes. In the ufs code clean up the helper that used to call ll_rw_block to mirror sync_dirty_buffer, which is the function it implements for compound buffers. Signed-off-by: Christoph Hellwig <hch@lst.de> Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
* covert fatfs to ->evict_inode()Al Viro2010-08-09
| | | | Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
* check ATTR_SIZE contraints in inode_change_okChristoph Hellwig2010-08-09
| | | | | | | | | | | | | | | | | | | | | Make sure we check the truncate constraints early on in ->setattr by adding those checks to inode_change_ok. Also clean up and document inode_change_ok to make this obvious. As a fallout we don't have to call inode_newsize_ok from simple_setsize and simplify it down to a truncate_setsize which doesn't return an error. This simplifies a lot of setattr implementations and means we use truncate_setsize almost everywhere. Get rid of fat_setsize now that it's trivial and mark ext2_setsize static to make the calling convention obvious. Keep the inode_newsize_ok in vmtruncate for now as all callers need an audit for its removal anyway. Note: setattr code in ecryptfs doesn't call inode_change_ok at all and needs a deeper audit, but that is left for later. Signed-off-by: Christoph Hellwig <hch@lst.de> Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
* always call inode_change_ok early in ->setattrChristoph Hellwig2010-08-09
| | | | | | | | | Make sure we call inode_change_ok before doing any changes in ->setattr, and make sure to call it even if our fs wants to ignore normal UNIX permissions, but use the ATTR_FORCE to skip those. Signed-off-by: Christoph Hellwig <hch@lst.de> Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
* rename generic_setattrChristoph Hellwig2010-08-09
| | | | | | | | | Despite its name it's now a generic implementation of ->setattr, but rather a helper to copy attributes from a struct iattr to the inode. Rename it to setattr_copy to reflect this fact. Signed-off-by: Christoph Hellwig <hch@lst.de> Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
* get rid of cont_write_begin_newtruncChristoph Hellwig2010-08-09
| | | | | | | | | Move the call to vmtruncate to get rid of accessive blocks to the callers in preparation of the new truncate sequence and rename the non-truncating version to cont_write_begin. Signed-off-by: Christoph Hellwig <hch@lst.de> Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
* sort out blockdev_direct_IO variantsChristoph Hellwig2010-08-09
| | | | | | | | | | | | Move the call to vmtruncate to get rid of accessive blocks to the callers in prepearation of the new truncate calling sequence. This was only done for DIO_LOCKING filesystems, so the __blockdev_direct_IO_newtrunc variant was not needed anyway. Get rid of blockdev_direct_IO_no_locking and its _newtrunc variant while at it as just opencoding the two additional paramters is shorted than the name suffix. Signed-off-by: Christoph Hellwig <hch@lst.de> Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
* fat: convert to use the new truncate convention.npiggin@suse.de2010-05-27
| | | | | | | Cc: OGAWA Hirofumi <hirofumi@mail.parknet.co.jp> Cc: Christoph Hellwig <hch@lst.de> Signed-off-by: Nick Piggin <npiggin@suse.de> Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
* rename the generic fsync implementationsChristoph Hellwig2010-05-27
| | | | | | | | | | | | | | | | We don't name our generic fsync implementations very well currently. The no-op implementation for in-memory filesystems currently is called simple_sync_file which doesn't make too much sense to start with, the the generic one for simple filesystems is called simple_fsync which can lead to some confusion. This patch renames the generic file fsync method to generic_file_fsync to match the other generic_file_* routines it is supposed to be used with, and the no-op implementation to noop_fsync to make it obvious what to expect. In addition add some documentation for both methods. Signed-off-by: Christoph Hellwig <hch@lst.de> Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
* drop unused dentry argument to ->fsyncChristoph Hellwig2010-05-27
| | | | | Signed-off-by: Christoph Hellwig <hch@lst.de> Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
* fatfs: ratelimit corruption reportOGAWA Hirofumi2010-05-25
| | | | | | 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>
* Merge git://git.kernel.org/pub/scm/linux/kernel/git/hirofumi/fatfs-2.6Linus Torvalds2010-05-24
|\ | | | | | | | | | | | | * git://git.kernel.org/pub/scm/linux/kernel/git/hirofumi/fatfs-2.6: fat: convert to unlocked_ioctl fat: Cleanup nls_unload() usage fat: use pack_hex_byte() instead of custom one
| * fat: convert to unlocked_ioctlArnd Bergmann2010-05-16
| | | | | | | | | | | | | | | | | | FAT does not require the BKL in its ioctl function, which is already serialized through a mutex. Since we're already touching the ioctl code, also fix the missing handling of FAT_IOCTL_GET_ATTRIBUTES in the compat code. Signed-off-by: Arnd Bergmann <arnd@arndb.de> Signed-off-by: OGAWA Hirofumi <hirofumi@mail.parknet.co.jp>
| * fat: Cleanup nls_unload() usageOGAWA Hirofumi2010-03-15
| | | | | | | | | | | | | | Other users doesn't check NULL explicitly. So, these doesn't also check to remove inconsistency. Signed-off-by: OGAWA Hirofumi <hirofumi@mail.parknet.co.jp>
| * fat: use pack_hex_byte() instead of custom oneAndy Shevchenko2010-03-15
| | | | | | | | | | Signed-off-by: Andy Shevchenko <ext-andriy.shevchenko@nokia.com> Signed-off-by: OGAWA Hirofumi <hirofumi@mail.parknet.co.jp>
* | Merge branch 'master' into export-slabhTejun Heo2010-04-04
|\ \
| * | fat: fix buffer overflow in vfat_create_shortname()Nikolaus Schulz2010-03-31
| |/ | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | When using the string representation of a random counter as part of the base name, ensure that it is no longer than 4 bytes. Since we are repeatedly decrementing the counter in a loop until we have found a unique base name, the counter may wrap around zero; therefore, it is not enough to mask its higher bits before entering the loop, this must be done inside the loop. [hirofumi@mail.parknet.co.jp: use snprintf()] Signed-off-by: Nikolaus Schulz <microschulz@web.de> Cc: stable@kernel.org Signed-off-by: OGAWA Hirofumi <hirofumi@mail.parknet.co.jp> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
* / include cleanup: Update gfp.h and slab.h includes to prepare for breaking ↵Tejun Heo2010-03-30
|/ | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | implicit slab.h inclusion from percpu.h percpu.h is included by sched.h and module.h and thus ends up being included when building most .c files. percpu.h includes slab.h which in turn includes gfp.h making everything defined by the two files universally available and complicating inclusion dependencies. percpu.h -> slab.h dependency is about to be removed. Prepare for this change by updating users of gfp and slab facilities include those headers directly instead of assuming availability. As this conversion needs to touch large number of source files, the following script is used as the basis of conversion. http://userweb.kernel.org/~tj/misc/slabh-sweep.py The script does the followings. * Scan files for gfp and slab usages and update includes such that only the necessary includes are there. ie. if only gfp is used, gfp.h, if slab is used, slab.h. * When the script inserts a new include, it looks at the include blocks and try to put the new include such that its order conforms to its surrounding. It's put in the include block which contains core kernel includes, in the same order that the rest are ordered - alphabetical, Christmas tree, rev-Xmas-tree or at the end if there doesn't seem to be any matching order. * If the script can't find a place to put a new include (mostly because the file doesn't have fitting include block), it prints out an error message indicating which .h file needs to be added to the file. The conversion was done in the following steps. 1. The initial automatic conversion of all .c files updated slightly over 4000 files, deleting around 700 includes and adding ~480 gfp.h and ~3000 slab.h inclusions. The script emitted errors for ~400 files. 2. Each error was manually checked. Some didn't need the inclusion, some needed manual addition while adding it to implementation .h or embedding .c file was more appropriate for others. This step added inclusions to around 150 files. 3. The script was run again and the output was compared to the edits from #2 to make sure no file was left behind. 4. Several build tests were done and a couple of problems were fixed. e.g. lib/decompress_*.c used malloc/free() wrappers around slab APIs requiring slab.h to be added manually. 5. The script was run on all .h files but without automatically editing them as sprinkling gfp.h and slab.h inclusions around .h files could easily lead to inclusion dependency hell. Most gfp.h inclusion directives were ignored as stuff from gfp.h was usually wildly available and often used in preprocessor macros. Each slab.h inclusion directive was examined and added manually as necessary. 6. percpu.h was updated not to include slab.h. 7. Build test were done on the following configurations and failures were fixed. CONFIG_GCOV_KERNEL was turned off for all tests (as my distributed build env didn't work with gcov compiles) and a few more options had to be turned off depending on archs to make things build (like ipr on powerpc/64 which failed due to missing writeq). * x86 and x86_64 UP and SMP allmodconfig and a custom test config. * powerpc and powerpc64 SMP allmodconfig * sparc and sparc64 SMP allmodconfig * ia64 SMP allmodconfig * s390 SMP allmodconfig * alpha SMP allmodconfig * um on x86_64 SMP allmodconfig 8. percpu.h modifications were reverted so that it could be applied as a separate patch and serve as bisection point. Given the fact that I had only a couple of failures from tests on step 6, I'm fairly confident about the coverage of this conversion patch. If there is a breakage, it's likely to be something in one of the arch headers which should be easily discoverable easily on most builds of the specific arch. Signed-off-by: Tejun Heo <tj@kernel.org> Guess-its-ok-by: Christoph Lameter <cl@linux-foundation.org> Cc: Ingo Molnar <mingo@redhat.com> Cc: Lee Schermerhorn <Lee.Schermerhorn@hp.com>
* Merge git://git.kernel.org/pub/scm/linux/kernel/git/hirofumi/fatfs-2.6Linus Torvalds2010-03-12
|\ | | | | | | | | | | * git://git.kernel.org/pub/scm/linux/kernel/git/hirofumi/fatfs-2.6: fat: Fix stat->f_namelen fat: Fix vfat_lookup()
| * fat: Fix stat->f_namelenKevin Dankwardt2010-02-10
| | | | | | | | | | | | | | | | I found that the length of a file name when created cannot exceed 255 characters, yet, pathconf(), via statfs(), returns the maximum as 260. Signed-off-by: Kevin Dankwardt <k@kcomputing.com> Signed-off-by: OGAWA Hirofumi <hirofumi@mail.parknet.co.jp>
| * fat: Fix vfat_lookup()OGAWA Hirofumi2010-01-11
| | | | | | | | | | | | | | | | | | | | | | | | | | After d_find_alias(), vfat_lookup() checks !(->d_flags & DCACHE_DISCONNECTED) without IS_ROOT(). This means it hits non-anonymous but disconnected dentry. (NOTE: d_splice_alias() doesn't clear DCACHE_DISCONNECTED) But, vfat_lookup() has interest to alias if it was non-anonymous. So, this adds vfat_d_anon_disconn() helper to check it correctly. Another bug is refcnt leak. It needs dput() for uninterested alias. Signed-off-by: OGAWA Hirofumi <hirofumi@mail.parknet.co.jp>
* | pass writeback_control to ->write_inodeChristoph Hellwig2010-03-05
|/ | | | | | | | | | This gives the filesystem more information about the writeback that is happening. Trond requested this for the NFS unstable write handling, and other filesystems might benefit from this too by beeing able to distinguish between the different callers in more detail. Signed-off-by: Christoph Hellwig <hch@lst.de> Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
* Merge git://git.kernel.org/pub/scm/linux/kernel/git/hirofumi/fatfs-2.6Linus Torvalds2009-12-16
|\ | | | | | | | | * git://git.kernel.org/pub/scm/linux/kernel/git/hirofumi/fatfs-2.6: fat: make discard a mount option
| * fat: make discard a mount optionChristoph Hellwig2009-11-21
| | | | | | | | | | | | | | | | | | | | | | Currently shipping discard capable SSDs and arrays have rather sub-optimal implementations of the command and can the use of it can cause massive slowdowns. Make issueing these commands option as it's already in btrfs and gfs2. Signed-off-by: Christoph Hellwig <hch@lst.de> [hirofumi@mail.parknet.co.jp: tweaks, and add "discard" to fat_show_options] Signed-off-by: OGAWA Hirofumi <hirofumi@mail.parknet.co.jp>
* | fatfs: use common time_to_tm in fat_time_unix2fat()Zhaolei2009-12-16
|/ | | | | | | | | | | | | | It is not necessary to write custom code for convert calendar time to broken-down time. time_to_tm() is more generic to do that. Signed-off-by: Zhao Lei <zhaolei@cn.fujitsu.com> Cc: OGAWA Hirofumi <hirofumi@mail.parknet.co.jp> Cc: Thomas Gleixner <tglx@linutronix.de> Cc: Ingo Molnar <mingo@elte.hu> Cc: Pavel Machek <pavel@ucw.cz> Cc: Andi Kleen <andi@firstfloor.org> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
* Merge git://git.kernel.org/pub/scm/linux/kernel/git/hirofumi/fatfs-2.6Linus Torvalds2009-09-30
|\ | | | | | | | | | | | | * git://git.kernel.org/pub/scm/linux/kernel/git/hirofumi/fatfs-2.6: fat: Check s_dirt in fat_sync_fs() vfat: change the default from shortname=lower to shortname=mixed fat/nls: Fix handling of utf8 invalid char
| * fat: Check s_dirt in fat_sync_fs()OGAWA Hirofumi2009-09-19
| | | | | | | | | | | | | | | | | | | | | | | | | | If we didn't check sb->s_dirt, it will update the FSINFO unconditionally. It will reduce the filetime of flash base device. So, this checks sb->s_dirt. sb->s_dirt is racy, however FSINFO is just hint. So even if there is race, and we hit it, it would not become big problem. And this also is as workaround of suspend problem. Signed-off-by: OGAWA Hirofumi <hirofumi@mail.parknet.co.jp>
| * vfat: change the default from shortname=lower to shortname=mixedPaul Wise2009-08-01
| | | | | | | | | | | | | | | | | | | | | | | | | | Because, with "shortname=lower", copying one FAT filesystem tree to another FAT filesystem tree using Linux results in semantically different filesystems. (E.g.: Filenames which were once "all uppercase" are now "all lowercase"). So, this changes the default of "shortname=lower" to "shortname=mixed". Signed-off-by: Paul Wise <pabs3@bonedaddy.net> [change fat_show_options()] Signed-off-by: OGAWA Hirofumi <hirofumi@mail.parknet.co.jp>
| * fat/nls: Fix handling of utf8 invalid charOGAWA Hirofumi2009-08-01
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | With utf8 option, vfat allowed the duplicated filenames. Normal nls returns -EINVAL for invalid char. But utf8s_to_utf16s() skipped the invalid char historically. So, this changes the utf8s_to_utf16s() directly to return -EINVAL for invalid char, because vfat is only user of it. mkdir /mnt/fatfs FILENAME=`echo -ne "invalidutf8char_\\0341_endofchar"` echo "Using filename: $FILENAME" dd if=/dev/zero of=fatfs bs=512 count=128 mkdosfs -F 32 fatfs mount -o loop,utf8 fatfs /mnt/fatfs touch "/mnt/fatfs/$FILENAME" umount /mnt/fatfs mount -o loop,utf8 fatfs /mnt/fatfs touch "/mnt/fatfs/$FILENAME" ls -l /mnt/fatfs umount /mnt/fatfs ---- And the output is: Using filename: invalidutf8char_\0341_endofchar 128+0 records in 128+0 records out 65536 bytes (66 kB) copied, 0.000388118 s, 169 MB/s mkdosfs 2.11 (12 Mar 2005) total 0 -rwxr-xr-x 1 root root 0 Jun 28 19:46 invalidutf8char__endofchar -rwxr-xr-x 1 root root 0 Jun 28 19:46 invalidutf8char__endofchar Tested-by: Marton Balint <cus@fazekas.hu> Signed-off-by: OGAWA Hirofumi <hirofumi@mail.parknet.co.jp>
* | fs: Make unload_nls() NULL pointer safeThomas Gleixner2009-09-24
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Most call sites of unload_nls() do: if (nls) unload_nls(nls); Check the pointer inside unload_nls() like we do in kfree() and simplify the call sites. Signed-off-by: Thomas Gleixner <tglx@linutronix.de> Cc: Steve French <sfrench@us.ibm.com> Cc: OGAWA Hirofumi <hirofumi@mail.parknet.co.jp> Cc: Roman Zippel <zippel@linux-m68k.org> Cc: Dave Kleikamp <shaggy@linux.vnet.ibm.com> Cc: Petr Vandrovec <vandrove@vc.cvut.cz> Cc: Anton Altaparmakov <aia21@cantab.net> Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
* | fat: Opencode sync_page_range_nolock()Jan Kara2009-09-14
|/ | | | | | | | | | | | fat_cont_expand() is the only user of sync_page_range_nolock(). It's also the only user of generic_osync_inode() which does not have a file open. So opencode needed actions for FAT so that we can convert generic_osync_inode() to a standard syncing path. Update a comment about generic_osync_inode(). CC: OGAWA Hirofumi <hirofumi@mail.parknet.co.jp> Signed-off-by: Jan Kara <jack@suse.cz>
* headers: smp_lock.h reduxAlexey Dobriyan2009-07-12
| | | | | | | | | | | | | * Remove smp_lock.h from files which don't need it (including some headers!) * Add smp_lock.h to files which do need it * Make smp_lock.h include conditional in hardirq.h It's needed only for one kernel_locked() usage which is under CONFIG_PREEMPT This will make hardirq.h inclusion cheaper for every PREEMPT=n config (which includes allmodconfig/allyesconfig, BTW) Signed-off-by: Alexey Dobriyan <adobriyan@gmail.com> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
* Fix congestion_wait() sync/async vs read/write confusionJens Axboe2009-07-10
| | | | | | | | Commit 1faa16d22877f4839bd433547d770c676d1d964c accidentally broke the bdi congestion wait queue logic, causing us to wait on congestion for WRITE (== 1) when we really wanted BLK_RW_ASYNC (== 0) instead. Signed-off-by: Jens Axboe <jens.axboe@oracle.com>
* fat: Fix the removal of opts->fs_dmaskOGAWA Hirofumi2009-06-20
| | | | | | | | (ce3b0f8d5c2203301fc87f3aaaed73e5819e2a48: New helper - current_umask()) is removing the opts->fs_dmask, probably it's a cut-and-paste miss or something. Signed-off-by: OGAWA Hirofumi <hirofumi@mail.parknet.co.jp>
* Merge git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/usb-2.6Linus Torvalds2009-06-16
|\ | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | * git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/usb-2.6: (143 commits) USB: xhci depends on PCI. USB: xhci: Add Makefile, MAINTAINERS, and Kconfig entries. USB: xhci: Respect critical sections. USB: xHCI: Fix interrupt moderation. USB: xhci: Remove packed attribute from structures. usb; xhci: Fix TRB offset calculations. USB: xhci: replace if-elseif-else with switch-case USB: xhci: Make xhci-mem.c include linux/dmapool.h USB: xhci: drop spinlock in xhci_urb_enqueue() error path. USB: Change names of SuperSpeed ep companion descriptor structs. USB: xhci: Avoid compiler reordering in Link TRB giveback. USB: xhci: Clean up xhci_irq() function. USB: xhci: Avoid global namespace pollution. USB: xhci: Fix Link TRB handoff bit twiddling. USB: xhci: Fix register write order. USB: xhci: fix some compiler warnings in xhci.h USB: xhci: fix lots of compiler warnings. USB: xhci: use xhci_handle_event instead of handle_event USB: xhci: URB cancellation support. USB: xhci: Scatter gather list support for bulk transfers. ...
| * NLS: update handling of UnicodeAlan Stern2009-06-16
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | This patch (as1239) updates the kernel's treatment of Unicode. The character-set conversion routines are well behind the current state of the Unicode specification: They don't recognize the existence of code points beyond plane 0 or of surrogate pairs in the UTF-16 encoding. The old wchar_t 16-bit type is retained because it's still used in lots of places. This shouldn't cause any new problems; if a conversion now results in an invalid 16-bit code then before it must have yielded an undefined code. Difficult-to-read names like "utf_mbstowcs" are replaced with more transparent names like "utf8s_to_utf16s" and the ordering of the parameters is rationalized (buffer lengths come immediate after the pointers they refer to, and the inputs precede the outputs). Fortunately the low-level conversion routines are used in only a few places; the interfaces to the higher-level uni2char and char2uni methods have been left unchanged. Signed-off-by: Alan Stern <stern@rowland.harvard.edu> Acked-by: Clemens Ladisch <clemens@ladisch.de> Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
* | Merge git://git.kernel.org/pub/scm/linux/kernel/git/hirofumi/fatfs-2.6Linus Torvalds2009-06-16
|\ \ | |/ |/| | | | | | | * git://git.kernel.org/pub/scm/linux/kernel/git/hirofumi/fatfs-2.6: fat: split fat_generic_ioctl FAT: add 'errors' mount option
| * fat: split fat_generic_ioctlChristoph Hellwig2009-06-08
| | | | | | | | | | | | | | | | Split up fat_generic_ioctl and add separate functions for the two implemented ioctls. Signed-off-by: Christoph Hellwig <hch@lst.de> Signed-off-by: OGAWA Hirofumi <hirofumi@mail.parknet.co.jp>
| * FAT: add 'errors' mount optionDenis Karpov2009-06-03
| | | | | | | | | | | | | | | | | | | | | | | | | | | | On severe errors FAT remounts itself in read-only mode. Allow to specify FAT fs desired behavior through 'errors' mount option: panic, continue or remount read-only. `mount -t [fat|vfat] -o errors=[panic,remount-ro,continue] \ <bdev> <mount point>` This is analog to ext2 fs 'errors' mount option. Signed-off-by: Denis Karpov <ext-denis.2.karpov@nokia.com> Signed-off-by: OGAWA Hirofumi <hirofumi@mail.parknet.co.jp>
* | fat: add ->sync_fsChristoph Hellwig2009-06-11
| | | | | | | | | | | | | | Add a ->sync_fs method for data integrity syncs. Signed-off-by: Christoph Hellwig <hch@lst.de> Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
* | Sanitize ->fsync() for FATAl Viro2009-06-11
| | | | | | | | | | | | | | | | * mark directory data blocks as assoc. metadata * add new inode to deal with FAT, mark FAT blocks as assoc. metadata of that * now ->fsync() is trivial both for files and directories Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
* | ->write_super lock_super pushdownChristoph Hellwig2009-06-11
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Push down lock_super into ->write_super instances and remove it from the caller. Following filesystem don't need ->s_lock in ->write_super and are skipped: * bfs, nilfs2 - no other uses of s_lock and have internal locks in ->write_super * ext2 - uses BKL in ext2_write_super and has internal calls without s_lock * reiserfs - no other uses of s_lock as has reiserfs_write_lock (BKL) in ->write_super * xfs - no other uses of s_lock and uses internal lock (buffer lock on superblock buffer) to serialize ->write_super. Also xfs_fs_write_super is superflous and will go away in the next merge window Signed-off-by: Christoph Hellwig <hch@lst.de> Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
* | push BKL down into ->put_superChristoph Hellwig2009-06-11
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Move BKL into ->put_super from the only caller. A couple of filesystems had trivial enough ->put_super (only kfree and NULLing of s_fs_info + stuff in there) to not get any locking: coda, cramfs, efs, hugetlbfs, omfs, qnx4, shmem, all others got the full treatment. Most of them probably don't need it, but I'd rather sort that out individually. Preferably after all the other BKL pushdowns in that area. [AV: original used to move lock_super() down as well; these changes are removed since we don't do lock_super() at all in generic_shutdown_super() now] [AV: fuse, btrfs and xfs are known to need no damn BKL, exempt] Signed-off-by: Christoph Hellwig <hch@lst.de> Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
* | remove ->write_super call in generic_shutdown_superChristoph Hellwig2009-06-11
|/ | | | | | | | | | | | | | | | | | | | | We just did a full fs writeout using sync_filesystem before, and if that's not enough for the filesystem it can perform it's own writeout in ->put_super, which many filesystems already do. Move a call to foofs_write_super into every foofs_put_super for now to guarantee identical behaviour until it's cleaned up by the individual filesystem maintainers. Exceptions: - affs already has identical copy & pasted code at the beginning of affs_put_super so no need to do it twice. - xfs does the right thing without it and I have changes pending for the xfs tree touching this are so I don't really need conflicts here.. Signed-off-by: Christoph Hellwig <hch@lst.de> Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
* vfat: Note the NLS requirementAlan Cox2009-04-17
| | | | | | | | Close bug #4754. Stop people getting into a situation where they can't get their FAT filesystems to mount as they expect. Signed-off-by: Alan Cox <alan@lxorguk.ukuu.org.uk> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
* Merge branch 'for-linus' of ↵Linus Torvalds2009-04-03
|\ | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | git://git.kernel.org/pub/scm/linux/kernel/git/viro/vfs-2.6 * 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/viro/vfs-2.6: Remove two unneeded exports and make two symbols static in fs/mpage.c Cleanup after commit 585d3bc06f4ca57f975a5a1f698f65a45ea66225 Trim includes of fdtable.h Don't crap into descriptor table in binfmt_som Trim includes in binfmt_elf Don't mess with descriptor table in load_elf_binary() Get rid of indirect include of fs_struct.h New helper - current_umask() check_unsafe_exec() doesn't care about signal handlers sharing New locking/refcounting for fs_struct Take fs_struct handling to new file (fs/fs_struct.c) Get rid of bumping fs_struct refcount in pivot_root(2) Kill unsharing fs_struct in __set_personality()
| * New helper - current_umask()Al Viro2009-03-31
| | | | | | | | | | | | | | current->fs->umask is what most of fs_struct users are doing. Put that into a helper function. Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
* | fs/fat: return f_fsid for statfs(2)Coly Li2009-04-02
|/ | | | | | | | | Make fat return f_fsid info for statfs(2). Signed-off-by: Coly Li <coly.li@suse.de> Acked-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>
* constify dentry_operations: FATAl Viro2009-03-27
| | | | Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
* Fix _fat_bmap() lockingOGAWA Hirofumi2009-03-11
| | | | | | | | | On swapon() path, it has already i_mutex. So, this uses i_alloc_sem instead of it. Signed-off-by: OGAWA Hirofumi <hirofumi@mail.parknet.co.jp> Reported-by: Laurent GUERBY <laurent@guerby.net> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
generated by cgit v1.2.2 (git 2.25.0) at 2024-11-26 15:50:29 -0500