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2007-07-10sendfile: remove .sendfile from filesystems that use generic_file_sendfile()Jens Axboe1-1/+1
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 <[email protected]>
2007-05-31ntfs_init_locked_inode(): fix array indexingAndrew Morton1-1/+1
Local variable `i' is a byte-counter. Don't use it as an index into an array of le32's. Reported-by: "young dave" <[email protected]> Cc: "Christoph Lameter" <[email protected]> Acked-by: Anton Altaparmakov <[email protected]> Cc: <[email protected]> Cc: Adrian Bunk <[email protected]> Signed-off-by: Andrew Morton <[email protected]> Signed-off-by: Linus Torvalds <[email protected]>
2007-05-21Detach sched.h from mm.hAlexey Dobriyan1-0/+1
First thing mm.h does is including sched.h solely for can_do_mlock() inline function which has "current" dereference inside. By dealing with can_do_mlock() mm.h can be detached from sched.h which is good. See below, why. This patch a) removes unconditional inclusion of sched.h from mm.h b) makes can_do_mlock() normal function in mm/mlock.c c) exports can_do_mlock() to not break compilation d) adds sched.h inclusions back to files that were getting it indirectly. e) adds less bloated headers to some files (asm/signal.h, jiffies.h) that were getting them indirectly Net result is: a) mm.h users would get less code to open, read, preprocess, parse, ... if they don't need sched.h b) sched.h stops being dependency for significant number of files: on x86_64 allmodconfig touching sched.h results in recompile of 4083 files, after patch it's only 3744 (-8.3%). Cross-compile tested on all arm defconfigs, all mips defconfigs, all powerpc defconfigs, alpha alpha-up arm i386 i386-up i386-defconfig i386-allnoconfig ia64 ia64-up m68k mips parisc parisc-up powerpc powerpc-up s390 s390-up sparc sparc-up sparc64 sparc64-up um-x86_64 x86_64 x86_64-up x86_64-defconfig x86_64-allnoconfig as well as my two usual configs. Signed-off-by: Alexey Dobriyan <[email protected]> Signed-off-by: Linus Torvalds <[email protected]>
2007-05-17Remove SLAB_CTOR_CONSTRUCTORChristoph Lameter1-2/+1
SLAB_CTOR_CONSTRUCTOR is always specified. No point in checking it. Signed-off-by: Christoph Lameter <[email protected]> Cc: David Howells <[email protected]> Cc: Jens Axboe <[email protected]> Cc: Steven French <[email protected]> Cc: Michael Halcrow <[email protected]> Cc: OGAWA Hirofumi <[email protected]> Cc: Miklos Szeredi <[email protected]> Cc: Steven Whitehouse <[email protected]> Cc: Roman Zippel <[email protected]> Cc: David Woodhouse <[email protected]> Cc: Dave Kleikamp <[email protected]> Cc: Trond Myklebust <[email protected]> Cc: "J. Bruce Fields" <[email protected]> Cc: Anton Altaparmakov <[email protected]> Cc: Mark Fasheh <[email protected]> Cc: Paul Mackerras <[email protected]> Cc: Christoph Hellwig <[email protected]> Cc: Jan Kara <[email protected]> Cc: David Chinner <[email protected]> Cc: "David S. Miller" <[email protected]> Signed-off-by: Andrew Morton <[email protected]> Signed-off-by: Linus Torvalds <[email protected]>
2007-05-12ntfs: use zero_user_pageNate Diller2-69/+26
Use zero_user_page() instead of open-coding it. [[email protected]: kmap-type fixes] Signed-off-by: Nate Diller <[email protected]> Acked-by: Anton Altaparmakov <[email protected]> Signed-off-by: Andrew Morton <[email protected]> Signed-off-by: Linus Torvalds <[email protected]>
2007-05-08header cleaning: don't include smp_lock.h when not usedRandy Dunlap2-2/+0
Remove includes of <linux/smp_lock.h> where it is not used/needed. Suggested by Al Viro. Builds cleanly on x86_64, i386, alpha, ia64, powerpc, sparc, sparc64, and arm (all 59 defconfigs). Signed-off-by: Randy Dunlap <[email protected]> Signed-off-by: Andrew Morton <[email protected]> Signed-off-by: Linus Torvalds <[email protected]>
2007-05-08mm: move common segment checks to separate helper functionDmitriy Monakhov1-18/+3
[[email protected]: cleanup] Signed-off-by: Monakhov Dmitriy <[email protected]> Cc: Christoph Hellwig <[email protected]> Acked-by: Anton Altaparmakov <[email protected]> Acked-by: David Chinner <[email protected]> Signed-off-by: Andrew Morton <[email protected]> Signed-off-by: Linus Torvalds <[email protected]>
2007-05-07slab allocators: Remove SLAB_DEBUG_INITIAL flagChristoph Lameter1-2/+1
I have never seen a use of SLAB_DEBUG_INITIAL. It is only supported by SLAB. I think its purpose was to have a callback after an object has been freed to verify that the state is the constructor state again? The callback is performed before each freeing of an object. I would think that it is much easier to check the object state manually before the free. That also places the check near the code object manipulation of the object. Also the SLAB_DEBUG_INITIAL callback is only performed if the kernel was compiled with SLAB debugging on. If there would be code in a constructor handling SLAB_DEBUG_INITIAL then it would have to be conditional on SLAB_DEBUG otherwise it would just be dead code. But there is no such code in the kernel. I think SLUB_DEBUG_INITIAL is too problematic to make real use of, difficult to understand and there are easier ways to accomplish the same effect (i.e. add debug code before kfree). There is a related flag SLAB_CTOR_VERIFY that is frequently checked to be clear in fs inode caches. Remove the pointless checks (they would even be pointless without removeal of SLAB_DEBUG_INITIAL) from the fs constructors. This is the last slab flag that SLUB did not support. Remove the check for unimplemented flags from SLUB. Signed-off-by: Christoph Lameter <[email protected]> Signed-off-by: Andrew Morton <[email protected]> Signed-off-by: Linus Torvalds <[email protected]>
2007-05-07mm: make read_cache_page synchronousNick Piggin4-46/+8
Ensure pages are uptodate after returning from read_cache_page, which allows us to cut out most of the filesystem-internal PageUptodate calls. I didn't have a great look down the call chains, but this appears to fixes 7 possible use-before uptodate in hfs, 2 in hfsplus, 1 in jfs, a few in ecryptfs, 1 in jffs2, and a possible cleared data overwritten with readpage in block2mtd. All depending on whether the filler is async and/or can return with a !uptodate page. Signed-off-by: Nick Piggin <[email protected]> Cc: Hugh Dickins <[email protected]> Signed-off-by: Andrew Morton <[email protected]> Signed-off-by: Linus Torvalds <[email protected]>
2007-02-14[PATCH] sysctl: remove the proc_dir_entry member for the sysctl tablesEric W. Biederman1-8/+0
It isn't needed anymore, all of the users are gone, and all of the ctl_table initializers have been converted to use explicit names of the fields they are initializing. [[email protected]: NTFS fix] Signed-off-by: Eric W. Biederman <[email protected]> Acked-by: Stephen Smalley <[email protected]> Cc: James Morris <[email protected]> Signed-off-by: Andrew Morton <[email protected]> Signed-off-by: Linus Torvalds <[email protected]>
2007-02-14[PATCH] sysctl: remove insert_at_head from register_sysctlEric W. Biederman1-1/+1
The semantic effect of insert_at_head is that it would allow new registered sysctl entries to override existing sysctl entries of the same name. Which is pain for caching and the proc interface never implemented. I have done an audit and discovered that none of the current users of register_sysctl care as (excpet for directories) they do not register duplicate sysctl entries. So this patch simply removes the support for overriding existing entries in the sys_sysctl interface since no one uses it or cares and it makes future enhancments harder. Signed-off-by: Eric W. Biederman <[email protected]> Acked-by: Ralf Baechle <[email protected]> Acked-by: Martin Schwidefsky <[email protected]> Cc: Russell King <[email protected]> Cc: David Howells <[email protected]> Cc: "Luck, Tony" <[email protected]> Cc: Ralf Baechle <[email protected]> Cc: Paul Mackerras <[email protected]> Cc: Martin Schwidefsky <[email protected]> Cc: Andi Kleen <[email protected]> Cc: Jens Axboe <[email protected]> Cc: Corey Minyard <[email protected]> Cc: Neil Brown <[email protected]> Cc: "John W. Linville" <[email protected]> Cc: James Bottomley <[email protected]> Cc: Jan Kara <[email protected]> Cc: Trond Myklebust <[email protected]> Cc: Mark Fasheh <[email protected]> Cc: David Chinner <[email protected]> Cc: "David S. Miller" <[email protected]> Cc: Patrick McHardy <[email protected]> Signed-off-by: Andrew Morton <[email protected]> Signed-off-by: Linus Torvalds <[email protected]>
2007-02-14[PATCH] sysctl: C99 convert ctl_tables in NTFS and remove sys_sysctl supportEric W. Biederman1-8/+16
Putting ntfs-debug under FS_NRINODE was not a kosher thing to do so don't give it any binary number. [[email protected]: build fix] Signed-off-by: Eric W. Biederman <[email protected]> Cc: Anton Altaparmakov <[email protected]> Signed-off-by: Andrew Morton <[email protected]> Signed-off-by: Linus Torvalds <[email protected]>
2007-02-12[PATCH] Mark struct super_operations constJosef 'Jeff' Sipek1-1/+1
This patch is inspired by Arjan's "Patch series to mark struct file_operations and struct inode_operations const". Compile tested with gcc & sparse. Signed-off-by: Josef 'Jeff' Sipek <[email protected]> Signed-off-by: Andrew Morton <[email protected]> Signed-off-by: Linus Torvalds <[email protected]>
2007-02-12[PATCH] mark struct inode_operations const 2Arjan van de Ven3-6/+6
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 <[email protected]> Signed-off-by: Andrew Morton <[email protected]> Signed-off-by: Linus Torvalds <[email protected]>
2007-02-12[PATCH] NTFS: rename incorrect check of NTFS_DEBUG with just DEBUGRobert P. J. Day1-1/+1
Replace the incorrect debugging check of "#ifdef NTFS_DEBUG" with just "#ifdef DEBUG". Signed-off-by: Robert P. J. Day <[email protected]> Acked-by: Anton Altaparmakov <[email protected]> Signed-off-by: Andrew Morton <[email protected]> Signed-off-by: Linus Torvalds <[email protected]>
2007-01-30[PATCH] ntfs: kmap_atomic() atomicity fixAndrew Morton1-0/+4
The KM_BIO_SRC_IRQ kmap slot requires local irq protection. Acked-by: Anton Altaparmakov <[email protected]> Signed-off-by: Andrew Morton <[email protected]> Signed-off-by: Linus Torvalds <[email protected]>
2007-01-18NTFS: Forgot to bump version number in makefile to 2.1.28...Anton Altaparmakov1-1/+1
Signed-off-by: Anton Altaparmakov <[email protected]>
2007-01-18NTFS: 2.1.28 - Fix deadlock reported by Sergey Vlasov due to ntfs_put_inode().Anton Altaparmakov5-84/+50
- Fix deadlock in fs/ntfs/inode.c::ntfs_put_inode(). Thanks to Sergey Vlasov for the report and detailed analysis of the deadlock. The fix involved getting rid of ntfs_put_inode() altogether and hence NTFS no longer has a ->put_inode super operation. Signed-off-by: Anton Altaparmakov <[email protected]>
2006-12-08[PATCH] ntfs: change uses of f_{dentry, vfsmnt} to use f_pathJosef "Jeff" Sipek2-4/+4
Change all the uses of f_{dentry,vfsmnt} to f_path.{dentry,mnt} in the ntfs filesystem code. Signed-off-by: Josef "Jeff" Sipek <[email protected]> Signed-off-by: Andrew Morton <[email protected]> Signed-off-by: Linus Torvalds <[email protected]>
2006-12-07[PATCH] slab: remove SLAB_NOFSChristoph Lameter4-5/+5
SLAB_NOFS is an alias of GFP_NOFS. Signed-off-by: Christoph Lameter <[email protected]> Signed-off-by: Andrew Morton <[email protected]> Signed-off-by: Linus Torvalds <[email protected]>
2006-10-01[PATCH] Streamline generic_file_* interfaces and filemap cleanupsBadari Pulavarty1-1/+1
This patch cleans up generic_file_*_read/write() interfaces. Christoph Hellwig gave me the idea for this clean ups. In a nutshell, all filesystems should set .aio_read/.aio_write methods and use do_sync_read/ do_sync_write() as their .read/.write methods. This allows us to cleanup all variants of generic_file_* routines. Final available interfaces: generic_file_aio_read() - read handler generic_file_aio_write() - write handler generic_file_aio_write_nolock() - no lock write handler __generic_file_aio_write_nolock() - internal worker routine Signed-off-by: Badari Pulavarty <[email protected]> Signed-off-by: Christoph Hellwig <[email protected]> Signed-off-by: Andrew Morton <[email protected]> Signed-off-by: Linus Torvalds <[email protected]>
2006-10-01[PATCH] Remove readv/writev methods and use aio_read/aio_write insteadBadari Pulavarty1-2/+0
This patch removes readv() and writev() methods and replaces them with aio_read()/aio_write() methods. Signed-off-by: Badari Pulavarty <[email protected]> Signed-off-by: Christoph Hellwig <[email protected]> Signed-off-by: Andrew Morton <[email protected]> Signed-off-by: Linus Torvalds <[email protected]>
2006-10-01[PATCH] Vectorize aio_read/aio_write fileop methodsBadari Pulavarty1-5/+3
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 <[email protected]> Signed-off-by: Christoph Hellwig <[email protected]> Cc: Michael Holzheu <[email protected]> Signed-off-by: Andrew Morton <[email protected]> Signed-off-by: Linus Torvalds <[email protected]>
2006-10-01[PATCH] fs/ntfs: Conversion to generic booleanRichard Knutsson28-331/+326
Conversion of booleans to: generic-boolean.patch (2006-08-23) Signed-off-by: Richard Knutsson <[email protected]> Signed-off-by: Anton Altaparmakov <[email protected]> Signed-off-by: Andrew Morton <[email protected]> Signed-off-by: Linus Torvalds <[email protected]>
2006-09-27[PATCH] inode-diet: Eliminate i_blksize from the inode structureTheodore Ts'o2-9/+0
This eliminates the i_blksize field from struct inode. Filesystems that want to provide a per-inode st_blksize can do so by providing their own getattr routine instead of using the generic_fillattr() function. Note that some filesystems were providing pretty much random (and incorrect) values for i_blksize. [[email protected]: cleanup] [[email protected]: generic_fillattr() fix] Signed-off-by: "Theodore Ts'o" <[email protected]> Signed-off-by: Adrian Bunk <[email protected]> Signed-off-by: Andrew Morton <[email protected]> Signed-off-by: Linus Torvalds <[email protected]>
2006-09-27[PATCH] Really ignore kmem_cache_destroy return valueAlexey Dobriyan1-23/+5
* Rougly half of callers already do it by not checking return value * Code in drivers/acpi/osl.c does the following to be sure: (void)kmem_cache_destroy(cache); * Those who check it printk something, however, slab_error already printed the name of failed cache. * XFS BUGs on failed kmem_cache_destroy which is not the decision low-level filesystem driver should make. Converted to ignore. Signed-off-by: Alexey Dobriyan <[email protected]> Signed-off-by: Andrew Morton <[email protected]> Signed-off-by: Linus Torvalds <[email protected]>
2006-09-27[PATCH] fs: Removing useless castsPanagiotis Issaris4-8/+7
* Removing useless casts * Removing useless wrapper * Conversion from kmalloc+memset to kzalloc Signed-off-by: Panagiotis Issaris <[email protected]> Acked-by: Dave Kleikamp <[email protected]> Signed-off-by: Andrew Morton <[email protected]> Signed-off-by: Linus Torvalds <[email protected]>
2006-07-03[PATCH] lockdep: annotate NTFS locking rulesIngo Molnar2-0/+64
NTFS uses lots of type-opaque objects which acquire their true identity runtime - so the lock validator needs to be helped in a couple of places to figure out object types. Many thanks to Anton Altaparmakov for giving lots of explanations about NTFS locking rules. Has no effect on non-lockdep kernels. Signed-off-by: Ingo Molnar <[email protected]> Signed-off-by: Anton Altaparmakov <[email protected]> Signed-off-by: Andrew Morton <[email protected]> Signed-off-by: Linus Torvalds <[email protected]>
2006-06-30Remove obsolete #include <linux/config.h>Jörn Engel1-1/+0
Signed-off-by: Jörn Engel <[email protected]> Signed-off-by: Adrian Bunk <[email protected]>
2006-06-28[PATCH] mark address_space_operations constChristoph Hellwig2-4/+4
Same as with already do with the file operations: keep them in .rodata and prevents people from doing runtime patching. Signed-off-by: Christoph Hellwig <[email protected]> Cc: Steven French <[email protected]> Signed-off-by: Andrew Morton <[email protected]> Signed-off-by: Linus Torvalds <[email protected]>
2006-06-25[PATCH] Prepare for __copy_from_user_inatomic to not zero missed bytesNeilBrown1-12/+14
The problem is that when we write to a file, the copy from userspace to pagecache is first done with preemption disabled, so if the source address is not immediately available the copy fails *and* *zeros* *the* *destination*. This is a problem because a concurrent read (which admittedly is an odd thing to do) might see zeros rather that was there before the write, or what was there after, or some mixture of the two (any of these being a reasonable thing to see). If the copy did fail, it will immediately be retried with preemption re-enabled so any transient problem with accessing the source won't cause an error. The first copying does not need to zero any uncopied bytes, and doing so causes the problem. It uses copy_from_user_atomic rather than copy_from_user so the simple expedient is to change copy_from_user_atomic to *not* zero out bytes on failure. The first of these two patches prepares for the change by fixing two places which assume copy_from_user_atomic does zero the tail. The two usages are very similar pieces of code which copy from a userspace iovec into one or more page-cache pages. These are changed to remove the assumption. The second patch changes __copy_from_user_inatomic* to not zero the tail. Once these are accepted, I will look at similar patches of other architectures where this is important (ppc, mips and sparc being the ones I can find). This patch: There is a problem with __copy_from_user_inatomic zeroing the tail of the buffer in the case of an error. As it is called in atomic context, the error may be transient, so it results in zeros being written where maybe they shouldn't be. In the usage in filemap, this opens a window for a well timed read to see data (zeros) which is not consistent with any ordering of reads and writes. Most cases where __copy_from_user_inatomic is called, a failure results in __copy_from_user being called immediately. As long as the latter zeros the tail, the former doesn't need to. However in *copy_from_user_iovec implementations (in both filemap and ntfs/file), it is assumed that copy_from_user_inatomic will zero the tail. This patch removes that assumption, so that after this patch it will be safe for copy_from_user_inatomic to not zero the tail. This patch also adds some commentary to filemap.h and asm-i386/uaccess.h. After this patch, all architectures that might disable preempt when kmap_atomic is called need to have their __copy_from_user_inatomic* "fixed". This includes - powerpc - i386 - mips - sparc Signed-off-by: Neil Brown <[email protected]> Cc: David Howells <[email protected]> Cc: Anton Altaparmakov <[email protected]> Cc: Benjamin Herrenschmidt <[email protected]> Cc: Paul Mackerras <[email protected]> Cc: Ralf Baechle <[email protected]> Cc: William Lee Irwin III <[email protected]> Signed-off-by: Andrew Morton <[email protected]> Signed-off-by: Linus Torvalds <[email protected]>
2006-06-23[PATCH] read_mapping_page for address spacePekka Enberg3-8/+4
Add read_mapping_page() which is used for callers that pass mapping->a_ops->readpage as the filler for read_cache_page. This removes some duplication from filesystem code. Signed-off-by: Pekka Enberg <[email protected]> Signed-off-by: Andrew Morton <[email protected]> Signed-off-by: Linus Torvalds <[email protected]>
2006-06-23[PATCH] VFS: Permit filesystem to perform statfs with a known root dentryDavid Howells1-3/+4
Give the statfs superblock operation a dentry pointer rather than a superblock pointer. This complements the get_sb() patch. That reduced the significance of sb->s_root, allowing NFS to place a fake root there. However, NFS does require a dentry to use as a target for the statfs operation. This permits the root in the vfsmount to be used instead. linux/mount.h has been added where necessary to make allyesconfig build successfully. Interest has also been expressed for use with the FUSE and XFS filesystems. Signed-off-by: David Howells <[email protected]> Acked-by: Al Viro <[email protected]> Cc: Nathan Scott <[email protected]> Signed-off-by: Andrew Morton <[email protected]> Signed-off-by: Linus Torvalds <[email protected]>
2006-06-23[PATCH] VFS: Permit filesystem to override root dentry on mountDavid Howells1-3/+4
Extend the get_sb() filesystem operation to take an extra argument that permits the VFS to pass in the target vfsmount that defines the mountpoint. The filesystem is then required to manually set the superblock and root dentry pointers. For most filesystems, this should be done with simple_set_mnt() which will set the superblock pointer and then set the root dentry to the superblock's s_root (as per the old default behaviour). The get_sb() op now returns an integer as there's now no need to return the superblock pointer. This patch permits a superblock to be implicitly shared amongst several mount points, such as can be done with NFS to avoid potential inode aliasing. In such a case, simple_set_mnt() would not be called, and instead the mnt_root and mnt_sb would be set directly. The patch also makes the following changes: (*) the get_sb_*() convenience functions in the core kernel now take a vfsmount pointer argument and return an integer, so most filesystems have to change very little. (*) If one of the convenience function is not used, then get_sb() should normally call simple_set_mnt() to instantiate the vfsmount. This will always return 0, and so can be tail-called from get_sb(). (*) generic_shutdown_super() now calls shrink_dcache_sb() to clean up the dcache upon superblock destruction rather than shrink_dcache_anon(). This is required because the superblock may now have multiple trees that aren't actually bound to s_root, but that still need to be cleaned up. The currently called functions assume that the whole tree is rooted at s_root, and that anonymous dentries are not the roots of trees which results in dentries being left unculled. However, with the way NFS superblock sharing are currently set to be implemented, these assumptions are violated: the root of the filesystem is simply a dummy dentry and inode (the real inode for '/' may well be inaccessible), and all the vfsmounts are rooted on anonymous[*] dentries with child trees. [*] Anonymous until discovered from another tree. (*) The documentation has been adjusted, including the additional bit of changing ext2_* into foo_* in the documentation. [[email protected]: convert ipath_fs, do other stuff] Signed-off-by: David Howells <[email protected]> Acked-by: Al Viro <[email protected]> Cc: Nathan Scott <[email protected]> Cc: Roland Dreier <[email protected]> Signed-off-by: Andrew Morton <[email protected]> Signed-off-by: Linus Torvalds <[email protected]>
2006-06-22[PATCH] NTFS: Critical bug fix (affects MIPS and possibly others)Anton Altaparmakov1-6/+7
Many thanks to Pauline Ng for the detailed bug report and analysis! Signed-off-by: Anton Altaparmakov <[email protected]> Cc: <[email protected]> Signed-off-by: Andrew Morton <[email protected]> Signed-off-by: Linus Torvalds <[email protected]>
2006-03-28[PATCH] Make most file operations structs in fs/ constArjan van de Ven3-6/+6
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 <[email protected]> Signed-off-by: Andrew Morton <[email protected]> Signed-off-by: Linus Torvalds <[email protected]>
2006-03-26[PATCH] bitops: ntfs: remove generic_ffs()Akinobu Mita3-3/+32
Now the only user who are using generic_ffs() is ntfs filesystem. This patch isolates generic_ffs() as ntfs_ffs() for ntfs. Signed-off-by: Akinobu Mita <[email protected]> Cc: Anton Altaparmakov <[email protected]> Signed-off-by: Andrew Morton <[email protected]> Signed-off-by: Linus Torvalds <[email protected]>
2006-03-24[PATCH] cpuset memory spread: slab cache filesystemsPaul Jackson1-2/+2
Mark file system inode and similar slab caches subject to SLAB_MEM_SPREAD memory spreading. If a slab cache is marked SLAB_MEM_SPREAD, then anytime that a task that's in a cpuset with the 'memory_spread_slab' option enabled goes to allocate from such a slab cache, the allocations are spread evenly over all the memory nodes (task->mems_allowed) allowed to that task, instead of favoring allocation on the node local to the current cpu. The following inode and similar caches are marked SLAB_MEM_SPREAD: file cache ==== ===== fs/adfs/super.c adfs_inode_cache fs/affs/super.c affs_inode_cache fs/befs/linuxvfs.c befs_inode_cache fs/bfs/inode.c bfs_inode_cache fs/block_dev.c bdev_cache fs/cifs/cifsfs.c cifs_inode_cache fs/coda/inode.c coda_inode_cache fs/dquot.c dquot fs/efs/super.c efs_inode_cache fs/ext2/super.c ext2_inode_cache fs/ext2/xattr.c (fs/mbcache.c) ext2_xattr fs/ext3/super.c ext3_inode_cache fs/ext3/xattr.c (fs/mbcache.c) ext3_xattr fs/fat/cache.c fat_cache fs/fat/inode.c fat_inode_cache fs/freevxfs/vxfs_super.c vxfs_inode fs/hpfs/super.c hpfs_inode_cache fs/isofs/inode.c isofs_inode_cache fs/jffs/inode-v23.c jffs_fm fs/jffs2/super.c jffs2_i fs/jfs/super.c jfs_ip fs/minix/inode.c minix_inode_cache fs/ncpfs/inode.c ncp_inode_cache fs/nfs/direct.c nfs_direct_cache fs/nfs/inode.c nfs_inode_cache fs/ntfs/super.c ntfs_big_inode_cache_name fs/ntfs/super.c ntfs_inode_cache fs/ocfs2/dlm/dlmfs.c dlmfs_inode_cache fs/ocfs2/super.c ocfs2_inode_cache fs/proc/inode.c proc_inode_cache fs/qnx4/inode.c qnx4_inode_cache fs/reiserfs/super.c reiser_inode_cache fs/romfs/inode.c romfs_inode_cache fs/smbfs/inode.c smb_inode_cache fs/sysv/inode.c sysv_inode_cache fs/udf/super.c udf_inode_cache fs/ufs/super.c ufs_inode_cache net/socket.c sock_inode_cache net/sunrpc/rpc_pipe.c rpc_inode_cache The choice of which slab caches to so mark was quite simple. I marked those already marked SLAB_RECLAIM_ACCOUNT, except for fs/xfs, dentry_cache, inode_cache, and buffer_head, which were marked in a previous patch. Even though SLAB_RECLAIM_ACCOUNT is for a different purpose, it marks the same potentially large file system i/o related slab caches as we need for memory spreading. Given that the rule now becomes "wherever you would have used a SLAB_RECLAIM_ACCOUNT slab cache flag before (usually the inode cache), use the SLAB_MEM_SPREAD flag too", this should be easy enough to maintain. Future file system writers will just copy one of the existing file system slab cache setups and tend to get it right without thinking. Signed-off-by: Paul Jackson <[email protected]> Signed-off-by: Andrew Morton <[email protected]> Signed-off-by: Linus Torvalds <[email protected]>
2006-03-23NTFS: 2.1.27 - Various bug fixes and cleanups.Anton Altaparmakov1-1/+1
Signed-off-by: Anton Altaparmakov <[email protected]>
2006-03-23NTFS: Semaphore to mutex conversion.Ingo Molnar8-69/+71
The conversion was generated via scripts, and the result was validated automatically via a script as well. Signed-off-by: Ingo Molnar <[email protected]> Signed-off-by: Andrew Morton <[email protected]> Signed-off-by: Anton Altaparmakov <[email protected]>
2006-03-23NTFS: Handle the recently introduced -ENAMETOOLONG return value fromAnton Altaparmakov2-5/+6
fs/ntfs/unistr.c::ntfs_nlstoucs() in fs/ntfs/namei.c::ntfs_lookup(). Signed-off-by: Anton Altaparmakov <[email protected]>
2006-03-23NTFS: Add a missing call to flush_dcache_mft_record_page() inAnton Altaparmakov2-3/+8
fs/ntfs/inode.c::ntfs_write_inode(). Signed-off-by: Anton Altaparmakov <[email protected]>
2006-03-23NTFS: Fix a bug in fs/ntfs/inode.c::ntfs_read_locked_index_inode() where weAnton Altaparmakov3-19/+15
forgot to update a temporary variable so loading index inodes which have an index allocation attribute failed. Signed-off-by: Anton Altaparmakov <[email protected]>
2006-03-23NTFS: Improve comments on file attribute flags in fs/ntfs/layout.h.Anton Altaparmakov2-13/+13
Signed-off-by: Anton Altaparmakov <[email protected]>
2006-03-23NTFS: Limit name length in fs/ntfs/unistr.c::ntfs_nlstoucs() to maximumAnton Altaparmakov2-19/+35
allowed by NTFS, i.e. 255 Unicode characters, not including the terminating NULL (which is not stored on disk). Signed-off-by: Anton Altaparmakov <[email protected]>
2006-03-23NTFS: Remove all the make_bad_inode() calls. This should only be calledAnton Altaparmakov6-23/+5
from read inode and new inode code paths. Signed-off-by: Anton Altaparmakov <[email protected]>
2006-03-23NTFS: Add support for sparse files which have a compression unit of 0.Anton Altaparmakov4-38/+75
Signed-off-by: Anton Altaparmakov <[email protected]>
2006-03-23NTFS: Fix comparison of $MFT and $MFTMirr to not bail out when there areAnton Altaparmakov2-13/+28
unused, invalid mft records which are the same in both $MFT and $MFTMirr. Signed-off-by: Anton Altaparmakov <[email protected]>
2006-03-23NTFS: Use buffer_migrate_page() for the ->migratepage function of all ntfsAnton Altaparmakov2-1/+10
address space operations. Signed-off-by: Anton Altaparmakov <[email protected]>
2006-03-23NTFS: Fix a buggette in an "should be impossible" case handling where weAnton Altaparmakov2-2/+4
continued the attribute lookup loop instead of aborting it. Signed-off-by: Anton Altaparmakov <[email protected]>