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64894cf843278c7b2653a6fac2cd1a697ff930dc
linux/fs
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Al Viro 64894cf843 simplify lookup_open()/atomic_open() - do the temporary mnt_want_write() early 
The write ref to vfsmount taken in lookup_open()/atomic_open() is going to
be dropped; we take the one to stay in dentry_open().  Just grab the temporary
in caller if it looks like we are going to need it (create/truncate/writable open)
and pass (by value) "has it succeeded" flag.  Instead of doing mnt_want_write()
inside, check that flag and treat "false" as "mnt_want_write() has just failed".
mnt_want_write() is cheap and the things get considerably simpler and more robust
that way - we get it and drop it in the same function, to start with, rather
than passing a "has something in the guts of really scary functions taken it"
back to caller.

Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
2012-07-31 00:53:35 +04:00
..
9p
VFS: Pass mount flags to sget()
2012-07-14 16:38:34 +04:00
adfs
stop passing nameidata to ->lookup()
2012-07-14 16:34:32 +04:00
affs
don't pass nameidata to ->create()
2012-07-14 16:34:47 +04:00
afs
VFS: Pass mount flags to sget()
2012-07-14 16:38:34 +04:00
autofs4
switch dentry_open() to struct path, make it grab references itself
2012-07-23 00:01:29 +04:00
befs
stop passing nameidata to ->lookup()
2012-07-14 16:34:32 +04:00
bfs
don't pass nameidata to ->create()
2012-07-14 16:34:47 +04:00
btrfs
btrfs: switch btrfs_ioctl_balance() to mnt_want_write_file()
2012-07-23 00:01:43 +04:00
cachefiles
switch dentry_open() to struct path, make it grab references itself
2012-07-23 00:01:29 +04:00
ceph
VFS: Pass mount flags to sget()
2012-07-14 16:38:34 +04:00
cifs
VFS: Pass mount flags to sget()
2012-07-14 16:38:34 +04:00
coda
don't pass nameidata to ->create()
2012-07-14 16:34:47 +04:00
configfs
stop passing nameidata to ->lookup()
2012-07-14 16:34:32 +04:00
cramfs
stop passing nameidata to ->lookup()
2012-07-14 16:34:32 +04:00
debugfs
debugfs: get rid of useless arguments to debugfs_{mkdir,symlink}
2012-07-14 16:35:30 +04:00
devpts
VFS: Pass mount flags to sget()
2012-07-14 16:38:34 +04:00
dlm
dlm: NULL dereference on failure in kmem_cache_create()
2012-05-15 10:39:28 -05:00
ecryptfs
ecryptfs_lookup_interpose(): allocate dentry_info first
2012-07-29 21:24:17 +04:00
efs
stop passing nameidata to ->lookup()
2012-07-14 16:34:32 +04:00
exofs
don't pass nameidata to ->create()
2012-07-14 16:34:47 +04:00
exportfs
switch dentry_open() to struct path, make it grab references itself
2012-07-23 00:01:29 +04:00
ext2
don't expose I_NEW inodes via dentry->d_inode
2012-07-23 00:00:58 +04:00
ext3
don't expose I_NEW inodes via dentry->d_inode
2012-07-23 00:00:58 +04:00
ext4
ext4: switch EXT4_IOC_RESIZE_FS to mnt_want_write_file()
2012-07-23 00:01:55 +04:00
fat
don't pass nameidata to ->create()
2012-07-14 16:34:47 +04:00
freevxfs
stop passing nameidata to ->lookup()
2012-07-14 16:34:32 +04:00
fscache
…
fuse
don't pass nameidata to ->create()
2012-07-14 16:34:47 +04:00
gfs2
quota: Move quota syncing to ->sync_fs method
2012-07-22 23:58:34 +04:00
hfs
hfs: get rid of hfs_sync_super
2012-07-22 23:58:09 +04:00
hfsplus
hfsplus: get rid of write_super
2012-07-22 23:58:04 +04:00
hostfs
don't pass nameidata to ->create()
2012-07-14 16:34:47 +04:00
hpfs
don't pass nameidata to ->create()
2012-07-14 16:34:47 +04:00
hppfs
switch dentry_open() to struct path, make it grab references itself
2012-07-23 00:01:29 +04:00
hugetlbfs
don't pass nameidata to ->create()
2012-07-14 16:34:47 +04:00
isofs
stop passing nameidata to ->lookup()
2012-07-14 16:34:32 +04:00
jbd
jbd: Write journal superblock with WRITE_FUA after checkpointing
2012-05-15 23:34:37 +02:00
jbd2
jbd2: use kmem_cache_zalloc wrapper instead of flag
2012-06-01 00:10:32 -04:00
jffs2
don't expose I_NEW inodes via dentry->d_inode
2012-07-23 00:00:58 +04:00
jfs
don't expose I_NEW inodes via dentry->d_inode
2012-07-23 00:00:58 +04:00
lockd
lockd: handle lockowner allocation failure in nlmclnt_proc()
2012-07-29 23:17:39 +04:00
logfs
VFS: Pass mount flags to sget()
2012-07-14 16:38:34 +04:00
minix
don't pass nameidata to ->create()
2012-07-14 16:34:47 +04:00
ncpfs
don't pass nameidata to ->create()
2012-07-14 16:34:47 +04:00
nfs
VFS: Pass mount flags to sget()
2012-07-14 16:38:34 +04:00
nfs_common
…
nfsd
switch dentry_open() to struct path, make it grab references itself
2012-07-23 00:01:29 +04:00
nilfs2
VFS: Pass mount flags to sget()
2012-07-14 16:38:34 +04:00
nls
nls: fix (and rename) mac NLS table files and config options
2012-06-01 19:51:22 -07:00
notify
switch dentry_open() to struct path, make it grab references itself
2012-07-23 00:01:29 +04:00
ntfs
stop passing nameidata to ->lookup()
2012-07-14 16:34:32 +04:00
ocfs2
pull mnt_want_write()/mnt_drop_write() into kern_path_create()/done_path_create() resp.
2012-07-29 21:24:15 +04:00
omfs
don't pass nameidata to ->create()
2012-07-14 16:34:47 +04:00
openpromfs
stop passing nameidata to ->lookup()
2012-07-14 16:34:32 +04:00
proc
VFS: Pass mount flags to sget()
2012-07-14 16:38:34 +04:00
pstore
Merge tag 'staging-3.5-rc4' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/staging
2012-06-20 15:15:03 -07:00
qnx4
stop passing nameidata to ->lookup()
2012-07-14 16:34:32 +04:00
qnx6
stop passing nameidata to ->lookup()
2012-07-14 16:34:32 +04:00
quota
quota: Split dquot_quota_sync() to writeback and cache flushing part
2012-07-22 23:58:19 +04:00
ramfs
don't pass nameidata to ->create()
2012-07-14 16:34:47 +04:00
reiserfs
don't expose I_NEW inodes via dentry->d_inode
2012-07-23 00:00:58 +04:00
romfs
stop passing nameidata to ->lookup()
2012-07-14 16:34:32 +04:00
squashfs
stop passing nameidata to ->lookup()
2012-07-14 16:34:32 +04:00
sysfs
VFS: Pass mount flags to sget()
2012-07-14 16:38:34 +04:00
sysv
fs/sysv: stop using write_super and s_dirt
2012-07-22 23:58:12 +04:00
ubifs
VFS: Pass mount flags to sget()
2012-07-14 16:38:34 +04:00
udf
don't pass nameidata to ->create()
2012-07-14 16:34:47 +04:00
ufs
fs/ufs: get rid of write_super
2012-07-22 23:58:16 +04:00
xfs
switch dentry_open() to struct path, make it grab references itself
2012-07-23 00:01:29 +04:00
aio.c
aio: now fput() is OK from interrupt context; get rid of manual delayed __fput()
2012-07-22 23:57:59 +04:00
anon_inodes.c
…
attr.c
notify_change(): check that i_mutex is held
2012-07-14 16:35:42 +04:00
bad_inode.c
don't pass nameidata to ->create()
2012-07-14 16:34:47 +04:00
binfmt_aout.c
VM: add "vm_mmap()" helper function
2012-04-20 17:29:13 -07:00
binfmt_elf_fdpic.c
Merge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/ebiederm/user-namespace
2012-05-23 17:42:39 -07:00
binfmt_elf.c
binfmt_elf: switch elf_map() to vm_mmap/vm_munmap
2012-05-30 21:04:55 -04:00
binfmt_em86.c
…
binfmt_flat.c
binfmt_flat: use vm_munmap, we are missing ->mmap_sem there
2012-05-30 21:04:56 -04:00
binfmt_misc.c
vfs: Rename end_writeback() to clear_inode()
2012-05-06 13:43:41 +08:00
binfmt_script.c
…
binfmt_som.c
VM: add "vm_mmap()" helper function
2012-04-20 17:29:13 -07:00
bio-integrity.c
…
bio.c
Merge branch 'for-3.5/core' of git://git.kernel.dk/linux-block
2012-05-30 08:52:42 -07:00
block_dev.c
vfs: Create function for iterating over block devices
2012-07-22 23:58:45 +04:00
buffer.c
block: fix infinite loop in __getblk_slow
2012-07-13 08:36:35 -07:00
char_dev.c
…
compat_binfmt_elf.c
…
compat_ioctl.c
Merge tag 'module-for-3.4' of git://git.kernel.org/pub/scm/linux/kernel/git/paulg/linux
2012-03-24 10:24:31 -07:00
compat.c
Merge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/viro/signal
2012-06-01 11:53:44 -07:00
dcache.c
__d_unalias() should refuse to move mountpoints
2012-07-14 16:35:15 +04:00
dcookies.c
…
direct-io.c
fs/direct-io.c: adjust suspicious bit operation
2012-07-14 16:32:46 +04:00
drop_caches.c
…
eventfd.c
eventfd: change int to __u64 in eventfd_signal()
2012-05-31 17:49:32 -07:00
eventpoll.c
HAVE_RESTORE_SIGMASK is defined on all architectures now
2012-06-01 12:58:46 -04:00
exec.c
consolidate pipe file creation
2012-07-29 21:24:19 +04:00
fcntl.c
switch fcntl to fget_raw_light/fput_light
2012-05-29 23:28:30 -04:00
fhandle.c
…
fifo.c
…
file_table.c
uninline file_free_rcu()
2012-07-29 21:24:17 +04:00
file.c
Merge branch 'x86-x32-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip
2012-03-29 18:12:23 -07:00
filesystems.c
…
fs_struct.c
get rid of ->mnt_longterm
2012-07-14 16:32:47 +04:00
fs-writeback.c
vfs: Move noop_backing_dev_info check from sync into writeback
2012-07-22 23:58:18 +04:00
generic_acl.c
…
inode.c
vfs: switch i_dentry/d_alias to hlist
2012-07-14 16:32:55 +04:00
internal.h
VFS: Split inode_permission()
2012-07-14 16:38:36 +04:00
ioctl.c
…
ioprio.c
Merge branch 'for-3.5/core' of git://git.kernel.dk/linux-block
2012-05-30 08:52:42 -07:00
Kconfig
Merge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/viro/vfs
2012-03-21 13:36:41 -07:00
Kconfig.binfmt
C6X: add support to build with BINFMT_ELF_FDPIC
2012-05-15 09:17:34 -04:00
libfs.c
VFS: Pass mount flags to sget()
2012-07-14 16:38:34 +04:00
locks.c
Remove easily user-triggerable BUG from generic_setlease
2012-07-13 10:50:23 -07:00
Makefile
…
mbcache.c
…
mount.h
get rid of magic in proc_namespace.c
2012-07-14 16:32:48 +04:00
mpage.c
…
namei.c
simplify lookup_open()/atomic_open() - do the temporary mnt_want_write() early
2012-07-31 00:53:35 +04:00
namespace.c
VFS: Comment mount following code
2012-07-14 16:38:32 +04:00
no-block.c
…
open.c
take grabbing f->f_path to do_dentry_open()
2012-07-29 21:24:18 +04:00
pipe.c
consolidate pipe file creation
2012-07-29 21:24:19 +04:00
pnode.c
VFS: Make clone_mnt()/copy_tree()/collect_mounts() return errors
2012-07-14 16:37:27 +04:00
pnode.h
…
posix_acl.c
…
proc_namespace.c
get rid of magic in proc_namespace.c
2012-07-14 16:32:48 +04:00
read_write.c
vfs: allow custom EOF in generic_file_llseek code
2012-07-23 00:00:15 +04:00
read_write.h
…
readdir.c
switch readdir/getdents to fget_light/fput_light
2012-05-29 23:28:29 -04:00
select.c
HAVE_RESTORE_SIGMASK is defined on all architectures now
2012-06-01 12:58:46 -04:00
seq_file.c
Merge tag 'module-for-3.4' of git://git.kernel.org/pub/scm/linux/kernel/git/paulg/linux
2012-03-24 10:24:31 -07:00
signalfd.c
switch signalfd4() to fget_light/fput_light
2012-05-29 23:28:30 -04:00
splice.c
splice: fix racy pipe->buffers uses
2012-06-13 21:16:42 +02:00
stack.c
…
stat.c
Merge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/ebiederm/user-namespace
2012-05-23 17:42:39 -07:00
statfs.c
switch statfs to fget_light/fput_light
2012-05-29 23:28:31 -04:00
super.c
VFS: Pass mount flags to sget()
2012-07-14 16:38:34 +04:00
sync.c
vfs: Avoid unnecessary WB_SYNC_NONE writeback during sys_sync and reorder sync passes
2012-07-22 23:59:01 +04:00
timerfd.c
…
utimes.c
switch utimes() to fget_light/fput_light
2012-05-29 23:28:32 -04:00
xattr_acl.c
…
xattr.c
switch xattr syscalls to fget_light/fput_light
2012-05-29 23:28:30 -04:00