kevin/linux
1
Fork 0
Code
839d9f93c9
linux/fs
History
Al Viro 839d9f93c9 [PATCH] namei fixes (6/19) 
mntget(path->mnt) in do_follow_link() moved down to right before the
__do_follow_link() call and rigth after loop: resp.

dput()+mntput() on non-ELOOP branch moved up to right after __do_follow_link()
call.

resulting
loop:
	mntget(path->mnt);
	path_release(nd);
	dput(path->mnt);
	mntput(path->mnt);
replaced with equivalent
	dput(path->mnt);
	path_release(nd);

Equivalent transformations - the reason why we have that mntget() is that
__do_follow_link() can drop a reference to nd->mnt and that's what holds
path->mnt.  So that call can happen at any point prior to __do_follow_link()
touching nd->mnt.  The rest is obvious.

NOTE: current tree relies on symlinks *never* being mounted on anything.  It's
not hard to get rid of that assumption (actually, that will come for free
later in the series).  For now we are just not making the situation worse than
it is.

Signed-off-by: Al Viro <viro@parcelfarce.linux.theplanet.co.uk>
Signed-off-by: Andrew Morton <akpm@osdl.org>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>
2005-06-06 14:42:25 -07:00
..
adfs Linux-2.6.12-rc2 2005-04-16 15:20:36 -07:00
affs Linux-2.6.12-rc2 2005-04-16 15:20:36 -07:00
afs [PATCH] Exterminate PAGE_BUG 2005-05-01 08:59:01 -07:00
autofs Linux-2.6.12-rc2 2005-04-16 15:20:36 -07:00
autofs4 [PATCH] autofs4: tree race fix 2005-05-01 08:59:17 -07:00
befs Linux-2.6.12-rc2 2005-04-16 15:20:36 -07:00
bfs Linux-2.6.12-rc2 2005-04-16 15:20:36 -07:00
cifs [CIFS] fix casts of unicode strings to match function definition 2005-05-17 16:07:23 -05:00
coda Linux-2.6.12-rc2 2005-04-16 15:20:36 -07:00
cramfs Linux-2.6.12-rc2 2005-04-16 15:20:36 -07:00
debugfs Linux-2.6.12-rc2 2005-04-16 15:20:36 -07:00
devfs Linux-2.6.12-rc2 2005-04-16 15:20:36 -07:00
devpts Linux-2.6.12-rc2 2005-04-16 15:20:36 -07:00
efs Linux-2.6.12-rc2 2005-04-16 15:20:36 -07:00
exportfs Linux-2.6.12-rc2 2005-04-16 15:20:36 -07:00
ext2 [PATCH] ext2 corruption - regression between 2.6.9 and 2.6.10 2005-04-16 15:25:45 -07:00
ext3 [PATCH] Avoid console spam with ext3 aborted journal. 2005-05-18 09:10:02 -07:00
fat Linux-2.6.12-rc2 2005-04-16 15:20:36 -07:00
freevxfs Linux-2.6.12-rc2 2005-04-16 15:20:36 -07:00
hfs [PATCH] hfs, hfsplus: don't leak s_fs_info and fix an oops 2005-05-01 08:59:16 -07:00
hfsplus [PATCH] hfs, hfsplus: don't leak s_fs_info and fix an oops 2005-05-01 08:59:16 -07:00
hostfs [PATCH] uml: remove 2_5compat.h 2005-05-28 16:46:11 -07:00
hpfs Linux-2.6.12-rc2 2005-04-16 15:20:36 -07:00
hppfs Linux-2.6.12-rc2 2005-04-16 15:20:36 -07:00
hugetlbfs Linux-2.6.12-rc2 2005-04-16 15:20:36 -07:00
isofs [PATCH] isofs includes sanitized 2005-04-25 18:32:12 -07:00
jbd [PATCH] ext3: fix list scanning in __cleanup_transaction 2005-06-02 15:12:29 -07:00
jffs Linux-2.6.12-rc2 2005-04-16 15:20:36 -07:00
jffs2 [PATCH] make some things static 2005-05-05 16:36:47 -07:00
jfs JFS: Endian errors 2005-05-04 09:11:49 -05:00
lockd Linux-2.6.12-rc2 2005-04-16 15:20:36 -07:00
minix Linux-2.6.12-rc2 2005-04-16 15:20:36 -07:00
msdos Linux-2.6.12-rc2 2005-04-16 15:20:36 -07:00
ncpfs Linux-2.6.12-rc2 2005-04-16 15:20:36 -07:00
nfs [PATCH] make some things static 2005-05-05 16:36:47 -07:00
nfsd [PATCH] nfsd4: fix struct file leak 2005-04-16 15:26:38 -07:00
nls [PATCH] make some things static 2005-05-05 16:36:47 -07:00
ntfs Linux-2.6.12-rc2 2005-04-16 15:20:36 -07:00
openpromfs Linux-2.6.12-rc2 2005-04-16 15:20:36 -07:00
partitions [PATCH] revert msdos partitioning fix 2005-05-06 22:09:27 -07:00
proc [PATCH] ppc32/ppc64: cleanup /proc/device-tree 2005-06-01 07:54:14 -07:00
qnx4 Linux-2.6.12-rc2 2005-04-16 15:20:36 -07:00
ramfs Linux-2.6.12-rc2 2005-04-16 15:20:36 -07:00
reiserfs [PATCH] reiserfs: max_key fix 2005-05-21 16:45:24 -07:00
romfs Linux-2.6.12-rc2 2005-04-16 15:20:36 -07:00
smbfs Linux-2.6.12-rc2 2005-04-16 15:20:36 -07:00
sysfs [PATCH] DocBook: fix some descriptions 2005-05-01 08:59:26 -07:00
sysv Linux-2.6.12-rc2 2005-04-16 15:20:36 -07:00
udf [PATCH] UDF filesystem: array '__mon_yday' declared as not static 2005-05-31 14:54:18 -07:00
ufs Linux-2.6.12-rc2 2005-04-16 15:20:36 -07:00
umsdos Linux-2.6.12-rc2 2005-04-16 15:20:36 -07:00
vfat Linux-2.6.12-rc2 2005-04-16 15:20:36 -07:00
xfs [XFS] remove an over-zealous WARN_ON 2005-05-27 01:17:08 -07:00
aio.c [PATCH] aio: optimize io_submit_one() 2005-05-01 08:59:16 -07:00
attr.c Linux-2.6.12-rc2 2005-04-16 15:20:36 -07:00
bad_inode.c [PATCH] make some things static 2005-05-05 16:36:47 -07:00
binfmt_aout.c Linux-2.6.12-rc2 2005-04-16 15:20:36 -07:00
binfmt_elf_fdpic.c Linux-2.6.12-rc2 2005-04-16 15:20:36 -07:00
binfmt_elf.c [PATCH] fix Linux kernel ELF core dump privilege elevation 2005-05-16 21:07:05 -07:00
binfmt_em86.c Linux-2.6.12-rc2 2005-04-16 15:20:36 -07:00
binfmt_flat.c Linux-2.6.12-rc2 2005-04-16 15:20:36 -07:00
binfmt_misc.c Linux-2.6.12-rc2 2005-04-16 15:20:36 -07:00
binfmt_script.c Linux-2.6.12-rc2 2005-04-16 15:20:36 -07:00
binfmt_som.c Linux-2.6.12-rc2 2005-04-16 15:20:36 -07:00
bio.c [PATCH] DocBook: fix some descriptions 2005-05-01 08:59:26 -07:00
block_dev.c [PATCH] remove do_sync parameter from __invalidate_device 2005-05-05 16:36:44 -07:00
buffer.c [PATCH] block_read_full_page() get_block() error handling fix 2005-05-17 07:59:20 -07:00
char_dev.c [PATCH] make some things static 2005-05-05 16:36:47 -07:00
compat_ioctl.c Linux-2.6.12-rc2 2005-04-16 15:20:36 -07:00
compat.c [PATCH] NFS4: Don't use __user with compat_uptr_t 2005-04-27 15:39:03 -07:00
dcache.c [PATCH] make some things static 2005-05-05 16:36:47 -07:00
dcookies.c Linux-2.6.12-rc2 2005-04-16 15:20:36 -07:00
direct-io.c [PATCH] Direct IO async short read fix 2005-04-16 15:25:50 -07:00
dnotify.c Linux-2.6.12-rc2 2005-04-16 15:20:36 -07:00
dquot.c [PATCH] quota: fix possible oops on quotaoff 2005-04-16 15:25:46 -07:00
eventpoll.c [PATCH] make some things static 2005-05-05 16:36:47 -07:00
exec.c [PATCH] comments on locking of task->comm 2005-05-05 16:36:48 -07:00
fcntl.c [PATCH] convert that currently tests _NSIG directly to use valid_signal() 2005-05-01 08:59:14 -07:00
fifo.c Linux-2.6.12-rc2 2005-04-16 15:20:36 -07:00
file_table.c Linux-2.6.12-rc2 2005-04-16 15:20:36 -07:00
file.c Linux-2.6.12-rc2 2005-04-16 15:20:36 -07:00
filesystems.c Linux-2.6.12-rc2 2005-04-16 15:20:36 -07:00
fs-writeback.c [PATCH] DocBook: fix some descriptions 2005-05-01 08:59:26 -07:00
inode.c [PATCH] remove do_sync parameter from __invalidate_device 2005-05-05 16:36:44 -07:00
ioctl.c Linux-2.6.12-rc2 2005-04-16 15:20:36 -07:00
Kconfig Linux-2.6.12-rc2 2005-04-16 15:20:36 -07:00
Kconfig.binfmt Linux-2.6.12-rc2 2005-04-16 15:20:36 -07:00
libfs.c Linux-2.6.12-rc2 2005-04-16 15:20:36 -07:00
locks.c [PATCH] make some things static 2005-05-05 16:36:47 -07:00
Makefile Linux-2.6.12-rc2 2005-04-16 15:20:36 -07:00
mbcache.c [PATCH] make some things static 2005-05-05 16:36:47 -07:00
mpage.c [PATCH] mpage_end_io_write() I/O error handling fix 2005-06-04 17:12:59 -07:00
namei.c [PATCH] namei fixes (6/19) 2005-06-06 14:42:25 -07:00
namespace.c Linux-2.6.12-rc2 2005-04-16 15:20:36 -07:00
nfsctl.c Linux-2.6.12-rc2 2005-04-16 15:20:36 -07:00
open.c Linux-2.6.12-rc2 2005-04-16 15:20:36 -07:00
pipe.c Linux-2.6.12-rc2 2005-04-16 15:20:36 -07:00
posix_acl.c Linux-2.6.12-rc2 2005-04-16 15:20:36 -07:00
quota_v1.c Linux-2.6.12-rc2 2005-04-16 15:20:36 -07:00
quota_v2.c [PATCH] quota: possible bug in quota format v2 support 2005-04-16 15:25:47 -07:00
quota.c Linux-2.6.12-rc2 2005-04-16 15:20:36 -07:00
read_write.c [PATCH] undo do_readv_writev() behavior change 2005-04-16 15:25:49 -07:00
readdir.c Linux-2.6.12-rc2 2005-04-16 15:20:36 -07:00
select.c [PATCH] make some things static 2005-05-05 16:36:47 -07:00
seq_file.c [PATCH] DocBook: fix some descriptions 2005-05-01 08:59:26 -07:00
stat.c Linux-2.6.12-rc2 2005-04-16 15:20:36 -07:00
super.c Linux-2.6.12-rc2 2005-04-16 15:20:36 -07:00
xattr_acl.c Linux-2.6.12-rc2 2005-04-16 15:20:36 -07:00
xattr.c Linux-2.6.12-rc2 2005-04-16 15:20:36 -07:00