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221af7f87b
linux/fs
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Linus Torvalds 221af7f87b Split 'flush_old_exec' into two functions 
'flush_old_exec()' is the point of no return when doing an execve(), and
it is pretty badly misnamed.  It doesn't just flush the old executable
environment, it also starts up the new one.

Which is very inconvenient for things like setting up the new
personality, because we want the new personality to affect the starting
of the new environment, but at the same time we do _not_ want the new
personality to take effect if flushing the old one fails.

As a result, the x86-64 '32-bit' personality is actually done using this
insane "I'm going to change the ABI, but I haven't done it yet" bit
(TIF_ABI_PENDING), with SET_PERSONALITY() not actually setting the
personality, but just the "pending" bit, so that "flush_thread()" can do
the actual personality magic.

This patch in no way changes any of that insanity, but it does split the
'flush_old_exec()' function up into a preparatory part that can fail
(still called flush_old_exec()), and a new part that will actually set
up the new exec environment (setup_new_exec()).  All callers are changed
to trivially comply with the new world order.

Signed-off-by: H. Peter Anvin <hpa@zytor.com>
Cc: stable@kernel.org
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2010-01-29 08:22:01 -08:00
..
9p fix oops in fs/9p late mount failure 2010-01-26 22:22:27 -05:00
adfs
affs fix affs parse_options() 2010-01-26 22:22:25 -05:00
afs afs: remove manual O_SYNC handling 2009-12-10 15:02:50 +01:00
autofs
autofs4 autofs4: always use lookup for lookup 2009-12-16 07:19:58 -08:00
befs
bfs Fix failure exits in bfs_fill_super() 2010-01-26 22:22:25 -05:00
btrfs Merge git://git.kernel.org/pub/scm/linux/kernel/git/mason/btrfs-unstable 2010-01-21 07:28:05 -08:00
cachefiles Untangling ima mess, part 2: deal with counters 2009-12-16 12:16:47 -05:00
cifs CIFS shouldn't make mountpoints shrinkable 2010-01-16 13:06:32 -05:00
coda sysctl: Drop & in front of every proc_handler. 2009-11-18 08:37:40 -08:00
configfs Fix configfs leak 2010-01-14 09:05:42 -05:00
cramfs
debugfs get rid of pointless checks after simple_pin_fs() 2010-01-26 22:22:26 -05:00
devpts devpts_get_tty() should validate inode 2009-12-11 15:18:05 -08:00
dlm Merge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/teigland/dlm 2009-12-10 09:33:59 -08:00
ecryptfs ecryptfs: use after free 2010-01-19 22:36:06 -06:00
efs
exofs exofs: simple_write_end does not mark_inode_dirty 2010-01-05 09:14:32 +02:00
exportfs nfs: new subdir Documentation/filesystems/nfs 2009-10-27 19:34:04 -04:00
ext2 Merge branch 'master' of git://git.kernel.org/pub/scm/linux/kernel/git/viro/vfs-2.6 2009-12-16 12:04:02 -08:00
ext3 ext3: Replace lock/unlock_super() with an explicit lock for resizing 2009-12-23 13:44:12 +01:00
ext4 ext4: Fix quota accounting error with fallocate 2010-01-25 04:00:31 -05:00
fat Merge git://git.kernel.org/pub/scm/linux/kernel/git/hirofumi/fatfs-2.6 2009-12-16 10:29:26 -08:00
freevxfs
fscache FS-Cache: Avoid maybe-used-uninitialised warning on variable 2009-12-16 07:20:13 -08:00
fuse fuse: reject O_DIRECT flag also in fuse_create 2009-11-27 16:37:13 +01:00
gfs2 GFS2: Use MAX_LFS_FILESIZE for meta inode size 2010-01-11 08:57:55 +00:00
hfs hfs: fix a potential buffer overflow 2009-12-15 08:53:10 -08:00
hfsplus hfsplus: refuse to mount volumes larger than 2TB 2009-10-29 07:39:27 -07:00
hostfs
hpfs hpfs: use bitmap_weight() 2009-12-16 07:20:06 -08:00
hppfs hppfs: handle ->put_link() 2010-01-14 09:05:25 -05:00
hugetlbfs Untangling ima mess, part 1: alloc_file() 2009-12-16 12:16:47 -05:00
isofs Merge branch 'for-2.6.33' of git://linux-nfs.org/~bfields/linux 2009-12-16 10:43:34 -08:00
jbd jbd: jbd-debug and jbd2-debug should be writable 2009-12-23 13:44:13 +01:00
jbd2 jbd2: don't use __GFP_NOFAIL in journal_init_common() 2009-12-23 08:05:15 -05:00
jffs2 Merge branch 'master' of git://git.kernel.org/pub/scm/linux/kernel/git/viro/vfs-2.6 2009-12-16 12:04:02 -08:00
jfs jfs: Fix 32bit build warning 2009-12-22 12:27:35 -05:00
lockd Merge branch 'for-2.6.33' of git://linux-nfs.org/~bfields/linux 2009-12-16 10:43:34 -08:00
minix
ncpfs tree-wide: fix assorted typos all over the place 2009-12-04 15:39:55 +01:00
nfs nfs: fix oops in nfs_rename() 2010-01-06 18:48:26 -05:00
nfs_common
nfsd Merge branch 'for-2.6.33' of git://linux-nfs.org/~bfields/linux 2010-01-06 18:10:15 -08:00
nilfs2 nilfs2: Storage class should be before const qualifier 2009-12-25 13:01:50 +09:00
nls
notify inotify: only warn once for inotify problems 2010-01-15 14:49:23 -08:00
ntfs kill I_LOCK 2009-12-17 11:03:25 -05:00
ocfs2 ocfs2: Handle O_DIRECT when writing to a refcounted cluster. 2009-12-30 19:53:35 -08:00
omfs tree-wide: fix assorted typos all over the place 2009-12-04 15:39:55 +01:00
openpromfs
partitions partitions: read whole sector with EFI GPT header 2009-11-23 09:29:58 +01:00
proc fix autofs/afs/etc. magic mountpoint breakage 2010-01-14 09:05:25 -05:00
qnx4 qnx4: use hweight8 2009-12-16 07:20:18 -08:00
quota quota: Fix dquot_transfer for filesystems different from ext4 2010-01-11 13:06:41 +01:00
ramfs nommu: fix shared mmap after truncate shrinkage problems 2010-01-16 12:15:40 -08:00
reiserfs Merge branch 'reiserfs/kill-bkl' of git://git.kernel.org/pub/scm/linux/kernel/git/frederic/random-tracing 2010-01-08 14:03:55 -08:00
romfs fix leak in romfs_fill_super() 2010-01-26 22:22:26 -05:00
smbfs
squashfs
sysfs sysfs: Add lockdep annotations for the sysfs active reference 2010-01-04 12:34:46 -08:00
sysv
ubifs lib: Introduce generic list_sort function 2010-01-12 21:02:00 -08:00
udf udf: Avoid IO in udf_clear_inode 2009-12-14 21:40:04 +01:00
ufs ufs: NFS support 2009-12-16 07:20:06 -08:00
xfs xfs: xfs_swap_extents needs to handle dynamic fork offsets 2010-01-15 13:49:07 -06:00
aio.c aio: remove unused field 2009-12-16 07:20:13 -08:00
anon_inodes.c Sanitize f_flags helpers 2009-12-22 12:27:34 -05:00
attr.c
bad_inode.c
binfmt_aout.c Split 'flush_old_exec' into two functions 2010-01-29 08:22:01 -08:00
binfmt_elf_fdpic.c Split 'flush_old_exec' into two functions 2010-01-29 08:22:01 -08:00
binfmt_elf.c Split 'flush_old_exec' into two functions 2010-01-29 08:22:01 -08:00
binfmt_em86.c
binfmt_flat.c Split 'flush_old_exec' into two functions 2010-01-29 08:22:01 -08:00
binfmt_misc.c
binfmt_script.c
binfmt_som.c Split 'flush_old_exec' into two functions 2010-01-29 08:22:01 -08:00
bio-integrity.c
bio.c fs/bio.c: fix shadows sparse warning 2010-01-19 14:07:09 +01:00
block_dev.c Merge branch 'for-linus' into for-2.6.33 2009-11-03 21:14:39 +01:00
buffer.c
char_dev.c
compat_binfmt_elf.c
compat_ioctl.c compat_ioctl: Supress "unknown cmd" message on serial /dev/console 2010-01-20 15:03:26 -08:00
compat.c compat.c: Remove dependence on nfsd private headers 2009-12-14 18:12:10 -05:00
dcache.c libfs: move EXPORT_SYMBOL for d_alloc_name 2009-12-16 12:16:48 -05:00
dcookies.c
direct-io.c dio: fix use-after-free 2009-12-17 04:52:13 -05:00
drop_caches.c
eventfd.c eventfd - allow atomic read and waitqueue remove 2010-01-25 12:26:38 -02:00
eventpoll.c anonfd: Allow making anon files read-only 2009-12-22 12:27:34 -05:00
exec.c Split 'flush_old_exec' into two functions 2010-01-29 08:22:01 -08:00
fcntl.c fnctl: f_modown should call write_lock_irqsave/restore 2010-01-26 17:25:38 -08:00
fifo.c
file_table.c alloc_file(): simplify handling of mnt_clone_write() errors 2009-12-22 12:27:33 -05:00
file.c headers: remove sched.h from interrupt.h 2009-10-11 11:20:58 -07:00
filesystems.c
fs_struct.c
fs-writeback.c writeback: add missing kernel-doc notation 2010-01-02 10:09:44 -08:00
generic_acl.c make generic_acl slightly more generic 2009-12-16 12:16:49 -05:00
inode.c kill I_LOCK 2009-12-17 11:03:25 -05:00
internal.h Fix f_flags/f_mode in case of lookup_instantiate_filp() from open(pathname, 3) 2009-12-22 12:27:34 -05:00
ioctl.c __generic_block_fiemap(): fix for files bigger than 4GB 2009-11-12 07:26:01 -08:00
ioprio.c
Kconfig Revert "task_struct: make journal_info conditional" 2009-12-17 13:23:24 -08:00
Kconfig.binfmt
libfs.c libfs: move EXPORT_SYMBOL for d_alloc_name 2009-12-16 12:16:48 -05:00
locks.c
Makefile
mbcache.c
mpage.c
namei.c Fix the -ESTALE handling in do_filp_open() 2010-01-14 09:05:26 -05:00
namespace.c do_add_mount() should sanitize mnt_flags 2010-01-16 13:07:36 -05:00
nfsctl.c vfs: nfsctl.c un-used nfsd #includes 2009-12-14 18:12:11 -05:00
no-block.c
open.c Sanitize f_flags helpers 2009-12-22 12:27:34 -05:00
pipe.c fs: no games with DCACHE_UNHASHED 2009-12-17 10:51:40 -05:00
pnode.c
pnode.h
posix_acl.c
read_write.c sendfile(): check f_op.splice_write() rather than f_op.sendpage() 2009-11-04 09:09:52 +01:00
read_write.h
readdir.c
select.c
seq_file.c
signalfd.c anonfd: Allow making anon files read-only 2009-12-22 12:27:34 -05:00
splice.c sendfile(): check f_op.splice_write() rather than f_op.sendpage() 2009-11-04 09:09:52 +01:00
stack.c VFS/fsstack: handle 32-bit smp + preempt + large files in fsstack_copy_inode_size 2009-12-17 10:58:17 -05:00
stat.c Add unlocked version of inode_add_bytes() function 2009-12-23 13:33:54 +01:00
super.c vfs: get_sb_single() - do not pass options twice 2009-12-23 11:23:43 -08:00
sync.c fold do_sync_file_range into sys_sync_file_range 2009-12-17 11:03:25 -05:00
timerfd.c anonfd: Allow making anon files read-only 2009-12-22 12:27:34 -05:00
utimes.c
xattr_acl.c VFS: Use GFP_NOFS in posix_acl_from_xattr() 2009-12-03 11:48:07 +00:00
xattr.c sanitize xattr handler prototypes 2009-12-16 12:16:49 -05:00