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01f2705daf
kernel-ark/fs
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Nate Diller 01f2705daf fs: convert core functions to zero_user_page 
It's very common for file systems to need to zero part or all of a page,
the simplist way is just to use kmap_atomic() and memset().  There's
actually a library function in include/linux/highmem.h that does exactly
that, but it's confusingly named memclear_highpage_flush(), which is
descriptive of *how* it does the work rather than what the *purpose* is.
So this patchset renames the function to zero_user_page(), and calls it
from the various places that currently open code it.

This first patch introduces the new function call, and converts all the
core kernel callsites, both the open-coded ones and the old
memclear_highpage_flush() ones.  Following this patch is a series of
conversions for each file system individually, per AKPM, and finally a
patch deprecating the old call.  The diffstat below shows the entire
patchset.

[akpm@linux-foundation.org: fix a few things]
Signed-off-by: Nate Diller <nate.diller@gmail.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2007-05-09 12:30:55 -07:00
..
9p header cleaning: don't include smp_lock.h when not used 2007-05-08 11:15:07 -07:00
adfs slab allocators: Remove SLAB_DEBUG_INITIAL flag 2007-05-07 12:12:57 -07:00
affs slab allocators: Remove SLAB_DEBUG_INITIAL flag 2007-05-07 12:12:57 -07:00
afs AFS: implement basic file write support 2007-05-09 12:30:50 -07:00
autofs
autofs4 header cleaning: don't include smp_lock.h when not used 2007-05-08 11:15:07 -07:00
befs slab allocators: Remove SLAB_DEBUG_INITIAL flag 2007-05-07 12:12:57 -07:00
bfs slab allocators: Remove SLAB_DEBUG_INITIAL flag 2007-05-07 12:12:57 -07:00
cifs header cleaning: don't include smp_lock.h when not used 2007-05-08 11:15:07 -07:00
coda slab allocators: Remove SLAB_DEBUG_INITIAL flag 2007-05-07 12:12:57 -07:00
configfs use simple_read_from_buffer() in fs/ 2007-05-09 12:30:49 -07:00
cramfs mm: make read_cache_page synchronous 2007-05-07 12:12:51 -07:00
debugfs remove "struct subsystem" as it is no longer needed 2007-05-02 18:57:59 -07:00
devpts devpts: add fsnotify create event 2007-05-08 11:14:59 -07:00
dlm Merge git://git.kernel.org/pub/scm/linux/kernel/git/steve/gfs2-2.6-nmw 2007-05-07 12:26:27 -07:00
ecryptfs header cleaning: don't include smp_lock.h when not used 2007-05-08 11:15:07 -07:00
efs slab allocators: Remove SLAB_DEBUG_INITIAL flag 2007-05-07 12:12:57 -07:00
exportfs header cleaning: don't include smp_lock.h when not used 2007-05-08 11:15:07 -07:00
ext2 ext3: copy i_flags to inode flags on write 2007-05-08 11:15:13 -07:00
ext3 ext3: copy i_flags to inode flags on write 2007-05-08 11:15:12 -07:00
ext4 header cleaning: don't include smp_lock.h when not used 2007-05-08 11:15:07 -07:00
fat fat: fix VFAT compat ioctls on 64-bit systems 2007-05-08 11:15:14 -07:00
freevxfs freevxfs: possible null pointer dereference fix 2007-05-08 11:14:59 -07:00
fuse add filesystem subtype support 2007-05-08 11:15:01 -07:00
gfs2 header cleaning: don't include smp_lock.h when not used 2007-05-08 11:15:07 -07:00
hfs is_power_of_2 in fs/hfs 2007-05-08 11:14:59 -07:00
hfsplus is_power_of_2 in fs/hfs 2007-05-08 11:14:59 -07:00
hostfs uml: hostfs style fixes 2007-05-08 11:14:57 -07:00
hpfs slab allocators: Remove SLAB_DEBUG_INITIAL flag 2007-05-07 12:12:57 -07:00
hppfs
hugetlbfs hugetlbfs: add NULL check in hugetlb_zero_setup() 2007-05-07 12:12:57 -07:00
isofs slab allocators: Remove SLAB_DEBUG_INITIAL flag 2007-05-07 12:12:57 -07:00
jbd jbd: check for error returned by kthread_create on creating journal thread 2007-05-08 11:15:13 -07:00
jbd2 jbd: check for error returned by kthread_create on creating journal thread 2007-05-08 11:15:13 -07:00
jffs2 slab allocators: Remove SLAB_DEBUG_INITIAL flag 2007-05-07 12:12:57 -07:00
jfs Merge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/shaggy/jfs-2.6 2007-05-08 11:32:30 -07:00
lockd header cleaning: don't include smp_lock.h when not used 2007-05-08 11:15:07 -07:00
minix slab allocators: Remove SLAB_DEBUG_INITIAL flag 2007-05-07 12:12:57 -07:00
msdos
ncpfs header cleaning: don't include smp_lock.h when not used 2007-05-08 11:15:07 -07:00
nfs nfs: fix congestion control: use atomic_longs 2007-05-08 11:15:21 -07:00
nfs_common
nfsd knfsd: avoid Oops if buggy userspace performs confusing filehandle->dentry mapping 2007-05-09 12:30:54 -07:00
nls
ntfs header cleaning: don't include smp_lock.h when not used 2007-05-08 11:15:07 -07:00
ocfs2 header cleaning: don't include smp_lock.h when not used 2007-05-08 11:15:07 -07:00
openpromfs slab allocators: Remove SLAB_DEBUG_INITIAL flag 2007-05-07 12:12:57 -07:00
partitions partition: add support for sysv68 partitions 2007-05-08 11:15:09 -07:00
proc smaps: only define clear_refs for CONFIG_MMU 2007-05-08 20:41:14 -07:00
qnx4 slab allocators: Remove SLAB_DEBUG_INITIAL flag 2007-05-07 12:12:57 -07:00
ramfs header cleaning: don't include smp_lock.h when not used 2007-05-08 11:15:07 -07:00
reiserfs reiserfs: use __set_current_state() 2007-05-08 11:15:13 -07:00
romfs slab allocators: Remove SLAB_DEBUG_INITIAL flag 2007-05-07 12:12:57 -07:00
smbfs smbfs: remove unnecessary allow_signal 2007-05-08 11:15:11 -07:00
sysfs use simple_read_from_buffer() in fs/ 2007-05-09 12:30:49 -07:00
sysv header cleaning: don't include smp_lock.h when not used 2007-05-08 11:15:07 -07:00
udf udf: possible null pointer dereference while load_partition 2007-05-08 11:15:22 -07:00
ufs header cleaning: don't include smp_lock.h when not used 2007-05-08 11:15:07 -07:00
vfat
xfs Merge git://oss.sgi.com:8090/xfs/xfs-2.6 2007-05-08 11:59:33 -07:00
aio.c unify flush_work/flush_work_keventd and rename it to cancel_work_sync 2007-05-09 12:30:53 -07:00
attr.c header cleaning: don't include smp_lock.h when not used 2007-05-08 11:15:07 -07:00
bad_inode.c header cleaning: don't include smp_lock.h when not used 2007-05-08 11:15:07 -07:00
binfmt_aout.c
binfmt_elf_fdpic.c header cleaning: don't include smp_lock.h when not used 2007-05-08 11:15:07 -07:00
binfmt_elf.c Invalid return value of execve() resulting in oopses 2007-05-08 11:15:15 -07:00
binfmt_em86.c header cleaning: don't include smp_lock.h when not used 2007-05-08 11:15:07 -07:00
binfmt_flat.c
binfmt_misc.c use simple_read_from_buffer() in fs/ 2007-05-09 12:30:49 -07:00
binfmt_script.c header cleaning: don't include smp_lock.h when not used 2007-05-08 11:15:07 -07:00
binfmt_som.c
bio.c KMEM_CACHE(): simplify slab cache creation 2007-05-07 12:12:55 -07:00
block_dev.c is_power_of_2 in fs/block_dev.c 2007-05-08 11:14:59 -07:00
buffer.c fs: convert core functions to zero_user_page 2007-05-09 12:30:55 -07:00
char_dev.c
compat_ioctl.c Fix error handling in HDIO_GETGEO compat wrapper 2007-05-08 11:15:14 -07:00
compat.c utimensat implementation 2007-05-08 11:15:18 -07:00
dcache.c header cleaning: don't include smp_lock.h when not used 2007-05-08 11:15:07 -07:00
dcookies.c
direct-io.c fs: convert core functions to zero_user_page 2007-05-09 12:30:55 -07:00
dnotify.c
dquot.c Introduce a handy list_first_entry macro 2007-05-08 11:15:11 -07:00
drop_caches.c
eventpoll.c Introduce a handy list_first_entry macro 2007-05-08 11:15:11 -07:00
exec.c (re)register_binfmt returns with -EBUSY 2007-05-08 11:15:08 -07:00
fcntl.c
fifo.c header cleaning: don't include smp_lock.h when not used 2007-05-08 11:15:07 -07:00
file_table.c header cleaning: don't include smp_lock.h when not used 2007-05-08 11:15:07 -07:00
file.c
filesystems.c add filesystem subtype support 2007-05-08 11:15:01 -07:00
fs-writeback.c
generic_acl.c
inode.c inode numbering: make static counters in new_inode and iunique be 32 bits 2007-05-08 11:15:16 -07:00
inotify_user.c
inotify.c Introduce a handy list_first_entry macro 2007-05-08 11:15:11 -07:00
internal.h cleanup compat ioctl handling 2007-05-08 11:15:09 -07:00
ioctl.c vfs: remove superflous sb == NULL checks 2007-05-08 11:15:02 -07:00
ioprio.c
Kconfig reiserfs: proc support requires PROC_FS 2007-05-08 11:15:04 -07:00
Kconfig.binfmt blackfin architecture 2007-05-07 12:12:58 -07:00
libfs.c inode numbering: change libfs sb creation routines to avoid collisions with their root inodes 2007-05-08 11:15:16 -07:00
locks.c Merge branch 'server-cluster-locking-api' of git://linux-nfs.org/~bfields/linux 2007-05-07 12:34:24 -07:00
Makefile
mbcache.c
mpage.c fs: convert core functions to zero_user_page 2007-05-09 12:30:55 -07:00
namei.c fs: use path_walk in do_path_lookup 2007-05-09 12:30:50 -07:00
namespace.c check privileges before setting mount propagation 2007-05-08 11:15:12 -07:00
nfsctl.c
no-block.c
open.c Remove suid/sgid bits on [f]truncate() 2007-05-08 20:10:00 -07:00
pipe.c VFS: delay the dentry name generation on sockets and pipes 2007-05-08 11:15:03 -07:00
pnode.c Introduce a handy list_first_entry macro 2007-05-08 11:15:11 -07:00
pnode.h
posix_acl.c
quota_v1.c
quota_v2.c
quota.c header cleaning: don't include smp_lock.h when not used 2007-05-08 11:15:07 -07:00
read_write.c use use SEEK_MAX to validate user lseek arguments 2007-05-08 11:14:59 -07:00
read_write.h
readdir.c ROUND_UP macro cleanup in fs/(select|compat|readdir).c 2007-05-08 11:15:09 -07:00
select.c ROUND_UP macro cleanup in fs/(select|compat|readdir).c 2007-05-08 11:15:09 -07:00
seq_file.c
splice.c [PATCH] splice: always call into page_cache_readahead() 2007-05-08 08:46:19 +02:00
stack.c
stat.c header cleaning: don't include smp_lock.h when not used 2007-05-08 11:15:07 -07:00
super.c add filesystem subtype support 2007-05-08 11:15:01 -07:00
sync.c Remove do_sync_file_range() 2007-05-08 11:15:04 -07:00
utimes.c utimensat implementation 2007-05-08 11:15:18 -07:00
xattr_acl.c
xattr.c header cleaning: don't include smp_lock.h when not used 2007-05-08 11:15:07 -07:00