David Howells 1fd36adcd9 Replace the fd_sets in struct fdtable with an array of unsigned longs ...

Replace the fd_sets in struct fdtable with an array of unsigned longs and then
use the standard non-atomic bit operations rather than the FD_* macros.

This:

 (1) Removes the abuses of struct fd_set:

     (a) Since we don't want to allocate a full fd_set the vast majority of the
     	 time, we actually, in effect, just allocate a just-big-enough array of
     	 unsigned longs and cast it to an fd_set type - so why bother with the
     	 fd_set at all?

     (b) Some places outside of the core fdtable handling code (such as
     	 SELinux) want to look inside the array of unsigned longs hidden inside
     	 the fd_set struct for more efficient iteration over the entire set.

 (2) Eliminates the use of FD_*() macros in the kernel completely.

 (3) Permits the __FD_*() macros to be deleted entirely where not exposed to
     userspace.

Signed-off-by: David Howells <dhowells@redhat.com>
Link: http://lkml.kernel.org/r/20120216174954.23314.48147.stgit@warthog.procyon.org.uk
Signed-off-by: H. Peter Anvin <hpa@zytor.com>
Cc: Al Viro <viro@zeniv.linux.org.uk>

2012-02-19 10:30:57 -08:00

..

9p

Merge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/ericvh/v9fs

2012-01-10 15:09:01 -08:00

adfs

vfs: switch ->show_options() to struct dentry *

2012-01-06 23:19:54 -05:00

affs

affs: propagate umode_t

2012-01-03 22:55:04 -05:00

afs

switch ->create() to umode_t

2012-01-03 22:54:53 -05:00

autofs4

Wrap accesses to the fd_sets in struct fdtable

2012-02-19 10:30:52 -08:00

befs

vfs: fix the stupidity with i_dentry in inode destructors

2012-01-03 22:52:40 -05:00

bfs

switch ->create() to umode_t

2012-01-03 22:54:53 -05:00

btrfs

Merge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/mason/linux-btrfs

2012-01-28 17:00:19 -08:00

cachefiles

fs: move code out of buffer.c

2012-01-03 22:54:07 -05:00

ceph

Merge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/sage/ceph-client

2012-02-02 15:47:33 -08:00

cifs

cifs: Fix oops in session setup code for null user mounts

2012-02-02 16:59:09 -06:00

coda

coda: switch coda_cnode_make() to sane API as well, clean coda_lookup()

2012-01-10 11:13:16 -05:00

configfs

configfs: convert to umode_t

2012-01-03 22:54:57 -05:00

cramfs

Merge branches 'vfsmount-guts', 'umode_t' and 'partitions' into Z

2012-01-06 23:15:54 -05:00

debugfs

kernel-doc: fix new warnings in debugfs

2012-01-24 10:47:41 -08:00

devpts

devpts: fix double-free on mount failure

2012-01-08 20:19:03 -05:00

dlm

Merge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/teigland/linux-dlm

2012-01-10 14:55:55 -08:00

ecryptfs

eCryptfs: move misleading function comments

2012-01-25 15:10:53 -08:00

efs

vfs: fix the stupidity with i_dentry in inode destructors

2012-01-03 22:52:40 -05:00

exofs

Merge branch 'for-linus' of git://git.open-osd.org/linux-open-osd

2012-01-09 12:51:01 -08:00

exportfs

…

ext2

ext2: protect inode changes in the SETVERSION and SETFLAGS ioctls

2012-01-11 13:39:02 +01:00

ext3

Merge branch 'for_linus' of git://git.kernel.org/pub/scm/linux/kernel/git/jack/linux-fs

2012-01-09 12:51:21 -08:00

ext4

Merge branch 'for_linus' into for_linus_merged

2012-01-10 11:54:07 -05:00

fat

Merge branch 'usb-next' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/usb

2012-01-09 12:09:47 -08:00

freevxfs

fs: propagate umode_t, misc bits

2012-01-03 22:55:10 -05:00

fscache

…

fuse

Merge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/mszeredi/fuse

2012-01-12 12:39:21 -08:00

gfs2

GFS2: Fix nlink setting on inode creation

2012-01-11 12:35:05 +00:00

hfs

vfs: switch ->show_options() to struct dentry *

2012-01-06 23:19:54 -05:00

hfsplus

hfsplus: creation of hidden dir on mount can fail

2012-01-10 17:48:52 -05:00

hostfs

vfs: switch ->show_options() to struct dentry *

2012-01-06 23:19:54 -05:00

hpfs

switch ->mknod() to umode_t

2012-01-03 22:54:54 -05:00

hppfs

vfs: for usbfs, etc. internal vfsmounts ->mnt_sb->s_root == ->mnt_root

2012-01-03 22:52:41 -05:00

hugetlbfs

mm: compaction: introduce sync-light migration for use by compaction

2012-01-12 20:13:09 -08:00

isofs

isofs: inode leak on mount failure

2012-01-09 10:48:11 -05:00

jbd

jbd: Issue cache flush after checkpointing

2012-01-11 13:36:57 +01:00

jbd2

Merge branch 'for_linus' into for_linus_merged

2012-01-10 11:54:07 -05:00

jffs2

jffs2: do not initialize variable unnecessarily

2012-01-11 09:53:51 +00:00

jfs

Merge branch 'pm-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/rafael/linux-pm

2012-01-08 13:10:57 -08:00

lockd

module_param: make bool parameters really bool (drivers & misc)

2012-01-13 09:32:20 +10:30

logfs

mtd: fix merge conflict resolution breakage

2012-02-01 11:10:24 -08:00

minix

Merge branch 'for-linus2' of git://git.kernel.org/pub/scm/linux/kernel/git/viro/vfs

2012-01-08 12:19:57 -08:00

ncpfs

vfs: switch ->show_options() to struct dentry *

2012-01-06 23:19:54 -05:00

nfs

NFS client bugfixes and cleanups for Linux 3.3 (pull 2)

2012-01-16 15:08:13 -08:00

nfs_common

…

nfsd

Merge branch 'for-3.3' of git://linux-nfs.org/~bfields/linux

2012-01-14 12:26:41 -08:00

nilfs2

nilfs2: avoid overflowing segment numbers in nilfs_ioctl_clean_segments()

2012-02-08 19:03:51 -08:00

nls

NLS: raname "maxlen" to "maxout" in UTF conversion routines

2011-11-26 19:58:47 -08:00

notify

fsnotify: don't BUG in fsnotify_destroy_mark()

2012-01-14 18:01:42 -08:00

ntfs

module_param: avoid bool abuse, add bint for special cases.

2012-01-13 09:32:17 +10:30

ocfs2

Merge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/teigland/linux-dlm

2012-01-10 14:55:55 -08:00

omfs

omfs: propagate umode_t

2012-01-03 22:55:01 -05:00

openpromfs

vfs: fix the stupidity with i_dentry in inode destructors

2012-01-03 22:52:40 -05:00

proc

Wrap accesses to the fd_sets in struct fdtable

2012-02-19 10:30:52 -08:00

pstore

pstore: gracefully handle NULL pstore_info functions

2011-11-18 13:49:00 -08:00

qnx4

qnx4: don't leak ->BitMap on late failure exits

2012-01-19 13:54:36 -05:00

quota

quota: Pass information that quota is stored in system file to userspace

2012-01-12 13:09:09 +01:00

ramfs

pohmelfs: propagate umode_t

2012-01-03 22:55:07 -05:00

reiserfs

reiserfs: don't lock root inode searching

2012-01-10 16:30:54 -08:00

romfs

MTD pull for 3.3

2012-01-10 13:45:22 -08:00

squashfs

Merge git://git.kernel.org/pub/scm/linux/kernel/git/pkl/squashfs-next

2012-01-13 10:34:57 -08:00

sysfs

sysfs: Complain bitterly about attempts to remove files from nonexistent directories.

2012-01-24 12:12:32 -08:00

sysv

vfs: prefer ->dentry->d_sb to ->mnt->mnt_sb

2012-01-06 23:16:53 -05:00

ubifs

UBIFS: fix non-debug configuration build

2012-01-15 13:46:02 +02:00

udf

Merge branch 'for_linus' of git://git.kernel.org/pub/scm/linux/kernel/git/jack/linux-fs

2012-01-09 12:51:21 -08:00

ufs

vfs: switch ->show_options() to struct dentry *

2012-01-06 23:19:54 -05:00

xfs

xfs: Fix missing xfs_iunlock() on error recovery path in xfs_readlink()

2012-01-25 11:01:31 -06:00

aio.c

Unused iocbs in a batch should not be accounted as active.

2012-01-13 20:39:44 -08:00

anon_inodes.c

…

attr.c

switch is_sxid() to umode_t

2012-01-03 22:55:11 -05:00

bad_inode.c

switch ->mknod() to umode_t

2012-01-03 22:54:54 -05:00

binfmt_aout.c

…

binfmt_elf_fdpic.c

…

binfmt_elf.c

fs: binfmt_elf: create Kconfig variable for PIE randomization

2012-01-10 16:30:51 -08:00

binfmt_em86.c

…

binfmt_flat.c

…

binfmt_misc.c

vfs: prefer ->dentry->d_sb to ->mnt->mnt_sb

2012-01-06 23:16:53 -05:00

binfmt_script.c

…

binfmt_som.c

…

bio-integrity.c

fs: add export.h to files using EXPORT_SYMBOL/THIS_MODULE macros

2011-10-31 19:30:31 -04:00

bio.c

bio: change some signed vars to unsigned

2011-11-16 09:21:50 +01:00

block_dev.c

vfs: cache request_queue in struct block_device

2012-01-12 20:13:12 -08:00

buffer.c

fs: move code out of buffer.c

2012-01-03 22:54:07 -05:00

char_dev.c

char_dev.c: fix up some whitespace errors

2011-12-13 11:18:17 -08:00

compat_binfmt_elf.c

…

compat_ioctl.c

Merge branch 'v4l_for_linus' of git://git.kernel.org/pub/scm/linux/kernel/git/mchehab/linux-media

2012-01-15 12:49:56 -08:00

compat.c

switch open and mkdir syscalls to umode_t

2012-01-03 22:55:19 -05:00

dcache.c

Merge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/sage/ceph-client

2012-01-13 10:29:21 -08:00

dcookies.c

…

direct-io.c

dio: optimize cache misses in the submission path

2012-01-12 20:13:12 -08:00

drop_caches.c

…

eventfd.c

…

eventpoll.c

epoll: limit paths

2012-01-12 20:13:04 -08:00

exec.c

Replace the fd_sets in struct fdtable with an array of unsigned longs

2012-02-19 10:30:57 -08:00

fcntl.c

Wrap accesses to the fd_sets in struct fdtable

2012-02-19 10:30:52 -08:00

fhandle.c

vfs: prefer ->dentry->d_sb to ->mnt->mnt_sb

2012-01-06 23:16:53 -05:00

fifo.c

…

file_table.c

vfs: prevent remount read-only if pending removes

2012-01-06 23:20:13 -05:00

file.c

Replace the fd_sets in struct fdtable with an array of unsigned longs

2012-02-19 10:30:57 -08:00

filesystems.c

vfs: convert fs_supers to hlist

2012-01-03 22:52:39 -05:00

fs_struct.c

…

fs-writeback.c

Merge branch 'writeback-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/wfg/linux

2012-01-10 16:59:59 -08:00

generic_acl.c

…

inode.c

vfs: remove printk from set_nlink()

2012-01-17 16:39:47 -05:00

internal.h

vfs: protect remounting superblock read-only

2012-01-06 23:20:12 -05:00

ioctl.c

vfs: fix up ENOIOCTLCMD error handling

2012-01-05 15:40:12 -08:00

ioprio.c

block, cfq: unlink cfq_io_context's immediately

2011-12-14 00:33:39 +01:00

Kconfig

Merge branch 'for-linus' of git://git.open-osd.org/linux-open-osd

2012-01-09 12:51:01 -08:00

Kconfig.binfmt

fs: binfmt_elf: create Kconfig variable for PIE randomization

2012-01-10 16:30:51 -08:00

libfs.c

fs: move code out of buffer.c

2012-01-03 22:54:07 -05:00

locks.c

vfs: fix handling of lock allocation failure in lease-break case

2011-12-26 10:25:26 -08:00

Makefile

Merge branches 'vfsmount-guts', 'umode_t' and 'partitions' into Z

2012-01-06 23:15:54 -05:00

mbcache.c

…

mount.h

vfs: keep list of mounts for each superblock

2012-01-06 23:20:12 -05:00

mpage.c

fs: remove unneeded plug in mpage_readpages()

2012-01-12 09:19:54 +01:00

namei.c

audit: do not call audit_getname on error

2012-01-17 16:17:01 -05:00

namespace.c

Merge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/jikos/trivial

2012-01-08 13:21:22 -08:00

no-block.c

…

open.c

Wrap accesses to the fd_sets in struct fdtable

2012-02-19 10:30:52 -08:00

pipe.c

pipe: fail cleanly when root tries F_SETPIPE_SZ with big size

2012-01-12 20:13:04 -08:00

pnode.c

vfs: switch pnode.h macros to struct mount *

2012-01-03 22:57:11 -05:00

pnode.h

vfs: switch pnode.h macros to struct mount *

2012-01-03 22:57:11 -05:00

posix_acl.c

vfs: pass all mask flags check_acl and posix_acl_permission

2011-10-28 14:58:54 +02:00

proc_namespace.c

vfs: switch ->show_options() to struct dentry *

2012-01-06 23:19:54 -05:00

read_write.c

Cross Memory Attach

2011-10-31 17:30:44 -07:00

read_write.h

…

readdir.c

…

select.c

Replace the fd_sets in struct fdtable with an array of unsigned longs

2012-02-19 10:30:57 -08:00

seq_file.c

constify seq_file stuff

2012-01-03 22:52:40 -05:00

signalfd.c

…

splice.c

fs: move code out of buffer.c

2012-01-03 22:54:07 -05:00

stack.c

filesystems: add set_nlink()

2011-11-02 12:53:43 +01:00

stat.c

readlinkat: ensure we return ENOENT for the empty pathname for normal lookups

2011-11-02 12:53:42 +01:00

statfs.c

vfs: new helper - vfs_ustat()

2012-01-03 22:53:07 -05:00

super.c

wake up s_wait_unfrozen when ->freeze_fs fails

2012-01-17 16:38:47 -05:00

sync.c

fs: move code out of buffer.c

2012-01-03 22:54:07 -05:00

timerfd.c

…

utimes.c

…

xattr_acl.c

…

xattr.c

vfs: mnt_drop_write_file()

2012-01-03 22:52:40 -05:00