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Miklos Szeredi d139d7ffd0 VFS: allow filesystems to implement atomic open+truncate 
Add a new attribute flag ATTR_OPEN, with the meaning: "truncation was
initiated by open() due to the O_TRUNC flag".

This way filesystems wanting to implement truncation within their ->open()
method can ignore such truncate requests.

This is a quick & dirty hack, but it comes for free.

Signed-off-by: Miklos Szeredi <mszeredi@suse.cz>
Cc: Christoph Hellwig <hch@lst.de>
Cc: Al Viro <viro@zeniv.linux.org.uk>
Cc: Andreas Dilger <adilger@clusterfs.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2007-10-18 14:37:30 -07:00
..
9p
9p: fix bad kconfig cross-dependency
2007-10-17 14:31:07 -05:00
adfs
Slab API: remove useless ctor parameter and reorder parameters
2007-10-17 08:42:45 -07:00
affs
fs: mark nibblemap const
2007-10-17 08:42:47 -07:00
afs
KEYS: Make request_key() and co fundamentally asynchronous
2007-10-17 08:42:57 -07:00
autofs
Replace pid_t in autofs with struct pid reference
2007-05-11 08:29:36 -07:00
autofs4
fs/autofs4/inode.c: kmalloc + memset conversion to kzalloc
2007-10-17 08:42:50 -07:00
befs
Slab API: remove useless ctor parameter and reorder parameters
2007-10-17 08:42:45 -07:00
bfs
Slab API: remove useless ctor parameter and reorder parameters
2007-10-17 08:42:45 -07:00
cifs
CIFS: ignore mode change if it's just for clearing setuid/setgid bits
2007-10-18 14:37:22 -07:00
coda
Slab API: remove useless ctor parameter and reorder parameters
2007-10-17 08:42:45 -07:00
configfs
r/o bind mounts: filesystem helpers for custom 'struct file's
2007-10-17 08:43:04 -07:00
cramfs
fs/cramfs/inode.c: replace hardcoded value with preprocessor constant
2007-10-18 14:37:29 -07:00
debugfs
docbook: fix filesystems content
2007-10-15 17:56:36 -07:00
devpts
devpts: add fsnotify create event
2007-05-08 11:14:59 -07:00
dlm
menuconfig: transform NLS and DLM menus
2007-10-17 08:43:00 -07:00
ecryptfs
ecryptfs: allow lower fs to interpret ATTR_KILL_S*ID
2007-10-18 14:37:21 -07:00
efs
Slab API: remove useless ctor parameter and reorder parameters
2007-10-17 08:42:45 -07:00
exportfs
knfsd: exportfs: split out reconnecting a dentry from find_exported_dentry
2007-07-17 10:23:06 -07:00
ext2
ext2 reservations
2007-10-17 08:43:02 -07:00
ext3
ext3: fix setup_new_group_blocks locking
2007-10-18 14:37:29 -07:00
ext4
ext4: lighten up resize transaction requirements
2007-10-17 18:50:04 -04:00
fat
Slab API: remove useless ctor parameter and reorder parameters
2007-10-17 08:42:45 -07:00
freevxfs
mm: Remove slab destructors from kmem_cache_create().
2007-07-20 10:11:58 +09:00
fuse
fuse: clean up open file passing in setattr
2007-10-18 14:37:30 -07:00
gfs2
fs: correct SuS compliance for open of large file without options
2007-10-17 08:43:01 -07:00
hfs
Slab API: remove useless ctor parameter and reorder parameters
2007-10-17 08:42:45 -07:00
hfsplus
Slab API: remove useless ctor parameter and reorder parameters
2007-10-17 08:42:45 -07:00
hostfs
uml: fix hostfs style
2007-10-16 09:43:07 -07:00
hpfs
Slab API: remove useless ctor parameter and reorder parameters
2007-10-17 08:42:45 -07:00
hppfs
…
hugetlbfs
r/o bind mounts: filesystem helpers for custom 'struct file's
2007-10-17 08:43:04 -07:00
isofs
fs/isofs/namei.c: Remove uninitialized local vars warning
2007-10-17 08:42:58 -07:00
jbd
JBD: replace jbd_kmalloc with kmalloc directly
2007-10-17 18:49:57 -04:00
jbd2
JBD2: debug code cleanup.
2007-10-17 18:49:59 -04:00
jffs2
Slab API: remove useless ctor parameter and reorder parameters
2007-10-17 08:42:45 -07:00
jfs
introduce I_SYNC
2007-10-17 08:43:02 -07:00
lockd
NFS/SUNRPC: use transport protocol naming
2007-10-09 17:17:53 -04:00
minix
limit minixfs printks on corrupted dir i_size
2007-10-17 08:42:53 -07:00
msdos
…
ncpfs
Slab API: remove useless ctor parameter and reorder parameters
2007-10-17 08:42:45 -07:00
nfs
NFS: if ATTR_KILL_S*ID bits are set, then skip mode change
2007-10-18 14:37:22 -07:00
nfs_common
…
nfsd
knfsd: only set ATTR_KILL_S*ID if ATTR_MODE isn't being explicitly set
2007-10-18 14:37:22 -07:00
nls
menuconfig: transform NLS and DLM menus
2007-10-17 08:43:00 -07:00
ntfs
writeback: fix ntfs with sb_has_dirty_inodes()
2007-10-17 08:43:02 -07:00
ocfs2
Fix f_version type: should be u64 instead of unsigned long
2007-10-17 08:42:53 -07:00
openpromfs
Slab API: remove useless ctor parameter and reorder parameters
2007-10-17 08:42:45 -07:00
partitions
fs/partitions/sun.c endianness annotations
2007-10-14 12:41:51 -07:00
proc
Don't truncate /proc/PID/environ at 4096 characters
2007-10-17 08:43:00 -07:00
qnx4
Slab API: remove useless ctor parameter and reorder parameters
2007-10-17 08:42:45 -07:00
ramfs
Remove valueless definition of hard-selected RAMFS option
2007-10-17 08:42:56 -07:00
reiserfs
reiserfs: turn of ATTR_KILL_S*ID at beginning of reiserfs_setattr
2007-10-18 14:37:22 -07:00
romfs
fs/romfs/inode.c: trivial improvements
2007-10-17 08:42:47 -07:00
smbfs
Slab API: remove useless ctor parameter and reorder parameters
2007-10-17 08:42:45 -07:00
sysfs
spin_lock_unlocked cleanups
2007-10-17 08:43:01 -07:00
sysv
Slab API: remove useless ctor parameter and reorder parameters
2007-10-17 08:42:45 -07:00
udf
fs/udf/balloc.c: mark a variable as uninitialized_var()
2007-10-17 08:43:00 -07:00
ufs
ufs: Fix mount check in ufs_fill_super()
2007-10-17 08:42:51 -07:00
vfat
…
xfs
Merge branch 'for-linus' of git://oss.sgi.com:8090/xfs/xfs-2.6
2007-10-17 09:04:11 -07:00
aio.c
Remove struct task_struct::io_wait
2007-10-18 14:37:20 -07:00
anon_inodes.c
anon-inodes use open coded atomic_inc for the shared inode
2007-10-17 08:43:00 -07:00
attr.c
VFS: make notify_change pass ATTR_KILL_S*ID to setattr operations
2007-10-18 14:37:22 -07:00
bad_inode.c
sendfile: remove bad_sendfile() from bad_file_ops
2007-07-10 08:04:15 +02:00
binfmt_aout.c
core_pattern: ignore RLIMIT_CORE if core_pattern is a pipe
2007-10-17 08:42:50 -07:00
binfmt_elf_fdpic.c
core_pattern: ignore RLIMIT_CORE if core_pattern is a pipe
2007-10-17 08:42:50 -07:00
binfmt_elf.c
Break ELF_PLATFORM and stack pointer randomization dependency
2007-10-17 08:43:01 -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_flat: warning fixes
2007-10-17 08:42:54 -07:00
binfmt_misc.c
mm: variable length argument support
2007-07-19 10:04:45 -07:00
binfmt_script.c
mm: variable length argument support
2007-07-19 10:04:45 -07:00
binfmt_som.c
core_pattern: ignore RLIMIT_CORE if core_pattern is a pipe
2007-10-17 08:42:50 -07:00
bio.c
bio: make freeing of ->bi_io_vec conditional in bio_free()
2007-10-16 11:03:52 +02:00
block_dev.c
Slab API: remove useless ctor parameter and reorder parameters
2007-10-17 08:42:45 -07:00
buffer.c
writeback: remove pages_skipped accounting in __block_write_full_page()
2007-10-17 08:43:02 -07:00
char_dev.c
mm: bdi init hooks
2007-10-17 08:42:45 -07:00
compat_ioctl.c
Clean up duplicate includes in fs/
2007-10-17 08:42:48 -07:00
compat.c
mm: variable length argument support
2007-07-19 10:04:45 -07:00
dcache.c
vfs: use the predefined d_unhashed inline function instead
2007-10-17 08:43:00 -07:00
dcookies.c
Remove fs.h from mm.h
2007-07-29 17:09:29 -07:00
direct-io.c
remove ZERO_PAGE
2007-10-16 09:42:53 -07:00
dnotify.c
mm: Remove slab destructors from kmem_cache_create().
2007-07-20 10:11:58 +09:00
dquot.c
quota: send messages via netlink
2007-10-17 08:42:56 -07:00
drop_caches.c
invalidate_mapping_pages(): add cond_resched
2007-07-16 09:05:36 -07:00
eventfd.c
eventfd use waitqueue lock ...
2007-05-18 13:09:34 -07:00
eventpoll.c
mm: Remove slab destructors from kmem_cache_create().
2007-07-20 10:11:58 +09:00
exec.c
security/ cleanups
2007-10-17 08:43:07 -07:00
fcntl.c
F_DUPFD_CLOEXEC implementation
2007-10-17 08:43:01 -07:00
fifo.c
Detach sched.h from mm.h
2007-05-21 09:18:19 -07:00
file_table.c
r/o bind mounts: filesystem helpers for custom 'struct file's
2007-10-17 08:43:04 -07:00
file.c
…
filesystems.c
add filesystem subtype support
2007-05-08 11:15:01 -07:00
fs-writeback.c
introduce I_SYNC
2007-10-17 08:43:02 -07:00
generic_acl.c
Introduce is_owner_or_cap() to wrap CAP_FOWNER use with fsuid check
2007-07-17 12:00:03 -07:00
inode.c
introduce I_SYNC
2007-10-17 08:43:02 -07:00
inotify_user.c
change inotifyfs magic as the same magic is used for futexfs
2007-10-17 08:43:00 -07:00
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
drop obsolete sys_ioctl export
2007-07-16 09:05:48 -07:00
ioprio.c
…
Kconfig
Ext4: Uninitialized Block Groups
2007-10-17 18:50:00 -04:00
Kconfig.binfmt
fs: Kill sh dependency for binfmt_flat.
2007-05-21 14:34:00 +09:00
libfs.c
make fs/libfs.c:simple_commit_write() static
2007-10-17 08:42:53 -07:00
locks.c
Slab API: remove useless ctor parameter and reorder parameters
2007-10-17 08:42:45 -07:00
Makefile
Remove valueless definition of hard-selected RAMFS option
2007-10-17 08:42:56 -07:00
mbcache.c
mm: Remove slab destructors from kmem_cache_create().
2007-07-20 10:11:58 +09:00
mpage.c
mm: buffered write cleanup
2007-10-16 09:42:54 -07:00
namei.c
VFS: allow filesystems to implement atomic open+truncate
2007-10-18 14:37:30 -07:00
namespace.c
fs: remove the unused mempages parameter
2007-10-17 08:42:49 -07:00
nfsctl.c
nfsctl: use vfs_path_lookup
2007-07-19 10:04:45 -07:00
no-block.c
…
open.c
Implement file posix capabilities
2007-10-17 08:43:07 -07:00
pipe.c
sched: affine sync wakeups
2007-10-15 17:00:19 +02:00
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
[IA64] Fix build failure in fs/quota.c
2007-07-27 15:40:13 -07:00
read_write.c
Cleanup macros for distinguishing mandatory locks
2007-10-09 18:32:46 -04:00
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
Use ERESTART_RESTARTBLOCK if poll() is interrupted by a signal
2007-10-17 08:42:53 -07:00
seq_file.c
[FS] seq_file: Introduce the seq_open_private()
2007-10-10 16:55:33 -07:00
signalfd.c
rename signalfd_siginfo fields
2007-10-17 08:43:01 -07:00
splice.c
Implement file posix capabilities
2007-10-17 08:43:07 -07:00
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
writeback: fix periodic superblock dirty inode flushing
2007-10-17 08:43:02 -07:00
sync.c
Introduce fixed sys_sync_file_range2() syscall, implement on PowerPC and ARM
2007-06-28 11:38:30 -07:00
timerfd.c
make timerfd return a u64 and fix the __put_user
2007-07-26 11:35:17 -07:00
utimes.c
VFS: check nanoseconds in utimensat
2007-10-17 08:42:52 -07:00
xattr_acl.c
…
xattr.c
Introduce is_owner_or_cap() to wrap CAP_FOWNER use with fsuid check
2007-07-17 12:00:03 -07:00