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* new helper: mount_bdev()Al Viro2010-10-29
| | | | | | ... and switch of the obvious get_sb_bdev() users to ->mount() Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
* Merge branch 'for-next' of ↵Linus Torvalds2010-10-28
|\ | | | | | | | | | | | | | | git://git.kernel.org/pub/scm/linux/kernel/git/hch/hfsplus * 'for-next' of git://git.kernel.org/pub/scm/linux/kernel/git/hch/hfsplus: hfsplus: free space correcly for files unlinked while open hfsplus: fix double lock typo in ioctl
| * hfsplus: free space correcly for files unlinked while openChristoph Hellwig2010-10-27
| | | | | | | | | | | | | | | | hfsplus_delete_inode only truncates away all block allocations if i_nlink is zero. Make sure we properly drop the unlink count even when doing the rename hack for open but unlinked files. Signed-off-by: Christoph Hellwig <hch@tuxera.com>
| * hfsplus: fix double lock typo in ioctlDan Carpenter2010-10-25
| | | | | | | | | | | | | | This was supposed to be a mutex_unlock() instead of a mutex_lock(). Signed-off-by: Dan Carpenter <error27@gmail.com> Signed-off-by: Christoph Hellwig <hch@tuxera.com>
* | new helper: ihold()Al Viro2010-10-25
| | | | | | | | | | | | Clones an existing reference to inode; caller must already hold one. Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
* | list.h: new helper - hlist_add_fake()Al Viro2010-10-25
|/ | | | | | | | | | Make node look as if it was on hlist, with hlist_del() working correctly. Usable without any locking... Convert a couple of places where we want to do that to inode->i_hash. Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
* hfsplus: fix getxattr return valueChristoph Hellwig2010-10-15
| | | | | | | | We need to support -EOPNOTSUPP for attributes that are not supported to match other filesystems and allow userspace to detect if Posix ACLs are supported or not. setxattr already gets this right. Signed-off-by: Christoph Hellwig <hch@tuxera.com>
* hfsplus: remove the unused hfsplus_kmap/hfsplus_kunmap helpersChristoph Hellwig2010-10-14
| | | | Signed-off-by: Christoph Hellwig <hch@tuxera.com>
* hfsplus: create correct initial catalog entries for device filesChristoph Hellwig2010-10-14
| | | | | | | | | | | | | | Make sure the initial insertation of the catalog entry already contains the device number by calling init_special_inode early and setting writing out the dev field of the on-disk permission structure. The latter is facilitated by sharing the almost identical hfsplus_set_perms helpers between initial catalog entry creating and ->write_inode. Unless we crashed just after mknod this bug was harmless as the inode is marked dirty at the end of hfsplus_mknod, and hfsplus_write_inode will update the catalog entry to contain the correct value. Signed-off-by: Christoph Hellwig <hch@tuxera.com>
* hfsplus: remove superflous rootflags field in hfsplus_inode_infoChristoph Hellwig2010-10-14
| | | | | | | The rootflags field in hfsplus_inode_info only caches the immutable and append-only flags in the VFS inode, so we can easily get rid of it. Signed-off-by: Christoph Hellwig <hch@tuxera.com>
* hfsplus: fix link corruptionChristoph Hellwig2010-10-14
| | | | | | | | | | | | | | | | | | | | HFS implements hardlink by using indirect catalog entries that refer to a hidden directly. The link target is cached in the dev field in the HFS+ specific inode, which is also used for the device number for device files, and inside for passing the nlink value of the indirect node from hfsplus_cat_write_inode to a helper function. Now if we happen to write out the indirect node while hfsplus_link is creating the catalog entry we'll get a link pointing to the linkid of the current nlink value. This can easily be reproduced by a large enough loop of local git-clone operations. Stop abusing the dev field in the HFS+ inode for short term storage by refactoring the way the permission structure in the catalog entry is set up, and rename the dev field to linkid to avoid any confusion. While we're at it also prevent creating hard links to special files, as the HFS+ dev and linkid share the same space in the on-disk structure. Signed-off-by: Christoph Hellwig <hch@tuxera.com>
* hfsplus: validate btree flagsChristoph Hellwig2010-10-14
| | | | Signed-off-by: Christoph Hellwig <hch@tuxera.com>
* hfsplus: handle more on-disk corruptions without oopsingEric Sandeen2010-10-14
| | | | | | | | | | | | | | | | | | | | | | | | hfs seems prone to bad things when it encounters on disk corruption. Many values are read from disk, and used as lengths to memcpy, as an example. This patch fixes up several of these problematic cases. o sanity check the on-disk maximum key lengths on mount (these are set to a defined value at mkfs time and shouldn't differ) o check on-disk node keylens against the maximum key length for each tree o fix hfs_btree_open so that going out via free_tree: doesn't wind up in hfs_releasepage, which wants to follow the very pointer we were trying to set up: HFS_SB(sb)->cat_tree = hfs_btree_open() . failure gets to hfs_releasepage and tries to follow HFS_SB(sb)->cat_tree Tested with the fsfuzzer; it survives more than it used to. [hch: ported of commit cf0594625083111ae522496dc1c256f7476939c2 from hfs] [hch: added the fixes from 5581d018ed3493d226e7a4d645d9c8a5af6c36b] Signed-off-by: Eric Sandeen <sandeen@redhat.com> Signed-off-by: Christoph Hellwig <hch@tuxera.com>
* hfsplus: hfs_bnode_find() can fail, resulting in hfs_bnode_split() breakageAl Viro2010-10-14
| | | | | | | | | oops and fs corruption; the latter can happen even on valid fs in case of oom. [hch: port of commit 3d10a15d6919488204bdb264050d156ced20d9aa from hfs] Signed-off-by: Al Viro <viro@zeniv.linux.org.uk> Signed-off-by: Christoph Hellwig <hch@tuxera.com>
* hfsplus: fix oops on mount with corrupted btree extent recordsJeff Mahoney2010-10-14
| | | | | | | | | | | | | | | | | | A particular fsfuzzer run caused an hfs file system to crash on mount. This is due to a corrupted MDB extent record causing a miscalculation of HFSPLUS_I(inode)->first_blocks for the extent tree. If the extent records are zereod out, then it won't trigger the first_blocks special case and instead falls through to the extent code, which we're in the middle of initializing. This patch catches the 0 size extent records, reports the corruption, and fails the mount. [hch: ported of commit 47f365eb575735c6b2edf5d08e0d16d26a9c23bd from hfs] Reported-by: Ramon de Carvalho Valle <rcvalle@linux.vnet.ibm.com> Signed-off-by: Jeff Mahoney <jeffm@suse.com> Signed-off-by: Christoph Hellwig <hch@tuxera.com>
* hfsplus: fix rename over directoriesChristoph Hellwig2010-10-01
| | | | | | | | | | | When renaming over a directory we need to use hfsplus_rmdir instead of hfsplus_unlink to evict the victim. This makes sure we properly error out on non-empty directory as required by Posix (BZ #16571), and it also makes sure we do the right thing in case i_nlink will every be set correctly for directories on hfsplus. Reported-by: Vlado Plaga <rechner@vlado-do.de> Signed-off-by: Christoph Hellwig <hch@tuxera.com>
* hfsplus: convert tree_lock to mutexThomas Gleixner2010-09-30
| | | | | | | tree_lock is used as mutex so make it a mutex. Signed-off-by: Thomas Gleixner <tglx@linutronix.de> Signed-off-by: Christoph Hellwig <hch@tuxera.com>
* hfsplus: add missing extent locking in hfsplus_write_inodeChristoph Hellwig2010-09-30
| | | | | | | | | | | | | Most of the extent handling code already does proper SMP locking, but hfsplus_write_inode was calling into hfsplus_ext_write_extent without taking the extents_lock. Fix this by splitting hfsplus_ext_write_extent into an internal helper that expects the lock, and a public interface that first acquires it. Also add a few locking asserts and document the locking rules in hfsplus_fs.h. Signed-off-by: Christoph Hellwig <hch@tuxera.com>
* hfsplus: protect readdir against removals from open_dir_listChristoph Hellwig2010-09-30
| | | | | | | | We already have i_mutex for readdir and the namespace operations that add entries to open_dir_list, the only thing that was missing was the removal in hfsplus_dir_release. Signed-off-by: Christoph Hellwig <hch@tuxera.com>
* hfsplus: use atomic bitops for the superblock flagsChristoph Hellwig2010-09-30
| | | | | | | The flags in the HFS+-specific superlock do get modified during runtime, use atomic bitops to make the modifications SMP safe. Signed-off-by: Christoph Hellwig <hch@tuxera.com>
* hfsplus: add per-superblock lock for volume header updatesChristoph Hellwig2010-09-30
| | | | | | | Lock updates to the mutal fields in the volume header, and document the locing in the hfsplus_sb_info structure. Signed-off-by: Christoph Hellwig <hch@tuxera.com>
* hfsplus: remove the rsrc_inodes listChristoph Hellwig2010-09-30
| | | | | | | | We never walk the list - the only reason for it is to make the resource fork inodes appear hashed to the writeback code. Borrow a trick from JFS to do that without needing a list head. Signed-off-by: Christoph Hellwig <hch@tuxera.com>
* hfsplus: do not cache and write next_allocChristoph Hellwig2010-09-30
| | | | | | | We never look at it, nor change the next_alloc field in the superblock. So don't bother caching it or writing it out in hfsplus_sync_fs. Signed-off-by: Christoph Hellwig <hch@tuxera.com>
* hfsplus: fix error handling in hfsplus_symlinkChristoph Hellwig2010-09-30
| | | | | | We need to free the inode again on a hfsplus_create_cat failure. Signed-off-by: Christoph Hellwig <hch@tuxera.com>
* hfsplus: merge mknod/mkdir/creatChristoph Hellwig2010-09-30
| | | | | | | Make hfsplus_mkdir and hfsplus_create call hfsplus_mknod instead of duplicating the code. Signed-off-by: Christoph Hellwig <hch@tuxera.com>
* hfsplus: clean up hfsplus_write_inodeChristoph Hellwig2010-09-30
| | | | | | | Add a new hfsplus_system_write_inode for writing the special system inodes and streamline the fastpath write_inode code. Signed-off-by: Christoph Hellwig <hch@tuxera.com>
* hfsplus: clean up hfsplus_igetChristoph Hellwig2010-09-30
| | | | | | | Add a new hfsplus_system_read_inode for reading the special system inodes and streamline the fastpath iget code. Signed-off-by: Christoph Hellwig <hch@tuxera.com>
* hfsplus: fix HFSPLUS_I calling conventionChristoph Hellwig2010-09-30
| | | | | | | | | | | HFSPLUS_I doesn't return a pointer to the hfsplus-specific inode information like all other FOO_I macros, but dereference the pointer in a way that made it look like a direct struct derefence. This only works as long as the HFSPLUS_I macro is used directly and prevents us from keepig a local hfsplus_inode_info pointer. Fix the calling convention and introduce a local hip variable in all functions that use it constantly. Signed-off-by: Christoph Hellwig <hch@tuxera.com>
* hfsplus: fix HFSPLUS_SB calling conventionChristoph Hellwig2010-09-30
| | | | | | | | | | | HFSPLUS_SB doesn't return a pointer to the hfsplus-specific superblock information like all other FOO_SB macros, but dereference the pointer in a way that made it look like a direct struct derefence. This only works as long as the HFSPLUS_SB macro is used directly and prevents us from keepig a local hfsplus_sb_info pointer. Fix the calling convention and introduce a local sbi variable in all functions that use it constantly. Signed-off-by: Christoph Hellwig <hch@tuxera.com>
* hfsplus: remove BKL from hfsplus_put_superChristoph Hellwig2010-09-30
| | | | | | | Except for ->put_super the BKL is now gone from HFS, which means it's superflous there too as ->put_super is serialized by the VFS. Signed-off-by: Christoph Hellwig <hch@tuxera.com>
* hfsplus: use alloc_mutex in hfsplus_sync_fsChristoph Hellwig2010-09-30
| | | | | | | | | | Use alloc_mutex to protect hfsplus_sync_fs against itself and concurrent allocations, which allows to get rid of lock_super in hfsplus. Note that most fields in the superblock still aren't protected against concurrent allocations, that will follow later. Signed-off-by: Christoph Hellwig <hch@tuxera.com>
* hfsplus: introduce alloc_mutexChristoph Hellwig2010-09-30
| | | | | | | | Use a new per-sb alloc_mutex instead of abusing i_mutex of the alloc_file to protect block allocations. This gets rid of lockdep nesting warnings and prepares for extending the scope of alloc_mutex. Signed-off-by: Christoph Hellwig <hch@tuxera.com>
* hfsplus: protect setflags using i_mutexChristoph Hellwig2010-09-30
| | | | | | | Use i_mutex for protecting against concurrent setflags ioctls like in other filesystems and get rid of the BKL in hfsplus_ioctl. Signed-off-by: Christoph Hellwig <hch@tuxera.com>
* hfsplus: split hfsplus_ioctlChristoph Hellwig2010-09-30
| | | | | | Give each ioctl command a function of it's own. Signed-off-by: Christoph Hellwig <hch@tuxera.com>
* hfsplus: fix BKL leak in hfsplus_ioctlChristoph Hellwig2010-09-30
| | | | | | | | | | Currenly the HFSPLUS_IOC_EXT2_GETFLAGS case never unlocks the BKL, which can lead to easily reproduced lockups when doing multiple GETFLAGS ioctls. Fix this by only taking the BKL for the HFSPLUS_IOC_EXT2_SETFLAGS case as neither HFSPLUS_IOC_EXT2_GETFLAGS not the default error case needs it. Signed-off-by: Christoph Hellwig <hch@tuxera.com>
* convert remaining ->clear_inode() to ->evict_inode()Al Viro2010-08-09
| | | | Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
* get rid of file_fsync()Al Viro2010-08-09
| | | | | | Copy and simplify in the only two users remaining. Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
* remove inode_setattrChristoph Hellwig2010-08-09
| | | | | | | | | | | | | | | | | | | Replace inode_setattr with opencoded variants of it in all callers. This moves the remaining call to vmtruncate into the filesystem methods where it can be replaced with the proper truncate sequence. In a few cases it was obvious that we would never end up calling vmtruncate so it was left out in the opencoded variant: spufs: explicitly checks for ATTR_SIZE earlier btrfs,hugetlbfs,logfs,dlmfs: explicitly clears ATTR_SIZE earlier ufs: contains an opencoded simple_seattr + truncate that sets the filesize just above In addition to that ncpfs called inode_setattr with handcrafted iattrs, which allowed to trim down the opencoded variant. Signed-off-by: Christoph Hellwig <hch@lst.de> Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
* add missing setattr methodsChristoph Hellwig2010-08-09
| | | | | | | | | For the new truncate sequence every filesystem that wants to truncate on-disk state needs a seattr method. Convert the remaining filesystems that implement the truncate inode operation to have its own setattr method. 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>
* hfsplus: Push down BKL into ioctl functionArnd Bergmann2010-05-16
| | | | | | | | HFS is one of the remaining users of the ->ioctl function, convert it blindly to unlocked_ioctl by pushing down the BKL. Signed-off-by: Arnd Bergmann <arnd@arndb.de> Signed-off-by: Frederic Weisbecker <fweisbec@gmail.com>
* 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>
* 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>
* hfsplus: refuse to mount volumes larger than 2TBBen Hutchings2009-10-29
| | | | | | | | | | | | | | | | | | | | | | | As found in <http://bugs.debian.org/550010>, hfsplus is using type u32 rather than sector_t for some sector number calculations. In particular, hfsplus_get_block() does: u32 ablock, dblock, mask; ... map_bh(bh_result, sb, (dblock << HFSPLUS_SB(sb).fs_shift) + HFSPLUS_SB(sb).blockoffset + (iblock & mask)); I am not confident that I can find and fix all cases where a sector number may be truncated. For now, avoid data loss by refusing to mount HFS+ volumes with more than 2^32 sectors (2TB). [akpm@linux-foundation.org: fix 32 and 64-bit issues] Signed-off-by: Ben Hutchings <ben@decadent.org.uk> Cc: Eric Sesterhenn <snakebyte@gmx.de> Cc: Roman Zippel <zippel@linux-m68k.org> Cc: <stable@kernel.org> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
* 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>
* 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>
* hfsplus: add ->sync_fsChristoph Hellwig2009-06-11
| | | | | | | | Add a ->sync_fs method for data integrity syncs, and reimplement ->write_super ontop of it. Signed-off-by: Christoph Hellwig <hch@lst.de> 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>
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