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Anatol Pomozov 39b6525274 fs: Preserve error code in get_empty_filp(), part 2 
Allocating a file structure in function get_empty_filp() might fail because
of several reasons:
 - not enough memory for file structures
 - operation is not allowed
 - user is over its limit

Currently the function returns NULL in all cases and we loose the exact
reason of the error. All callers of get_empty_filp() assume that the function
can fail with ENFILE only.

Return error through pointer. Change all callers to preserve this error code.

[AV: cleaned up a bit, carved the get_empty_filp() part out into a separate commit
(things remaining here deal with alloc_file()), removed pipe(2) behaviour change]

Signed-off-by: Anatol Pomozov <anatol.pomozov@gmail.com>
Reviewed-by: "Theodore Ts'o" <tytso@mit.edu>
Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
2013-02-22 23:31:32 -05:00
..
9p
new helper: file_inode(file)
2013-02-22 23:31:31 -05:00
adfs
new helper: file_inode(file)
2013-02-22 23:31:31 -05:00
affs
new helper: file_inode(file)
2013-02-22 23:31:31 -05:00
afs
new helper: file_inode(file)
2013-02-22 23:31:31 -05:00
autofs4
new helper: file_inode(file)
2013-02-22 23:31:31 -05:00
befs
new helper: file_inode(file)
2013-02-22 23:31:31 -05:00
bfs
new helper: file_inode(file)
2013-02-22 23:31:31 -05:00
btrfs
new helper: file_inode(file)
2013-02-22 23:31:31 -05:00
cachefiles
FS-Cache: Mark cancellation of in-progress operation
2012-12-20 22:34:00 +00:00
ceph
new helper: file_inode(file)
2013-02-22 23:31:31 -05:00
cifs
new helper: file_inode(file)
2013-02-22 23:31:31 -05:00
coda
new helper: file_inode(file)
2013-02-22 23:31:31 -05:00
configfs
new helper: file_inode(file)
2013-02-22 23:31:31 -05:00
cramfs
new helper: file_inode(file)
2013-02-22 23:31:31 -05:00
debugfs
debugfs: convert gid= argument from decimal, not octal
2013-01-11 05:56:01 -08:00
devpts
TTY: devpts, document devpts inode operations
2012-10-22 16:50:13 -07:00
dlm
dlm: fix lvb invalidation conditions
2012-11-16 11:20:42 -06:00
ecryptfs
new helper: file_inode(file)
2013-02-22 23:31:31 -05:00
efs
new helper: file_inode(file)
2013-02-22 23:31:31 -05:00
exofs
new helper: file_inode(file)
2013-02-22 23:31:31 -05:00
exportfs
Merge branch 'for-3.8' of git://linux-nfs.org/~bfields/linux
2012-12-20 14:04:11 -08:00
ext2
new helper: file_inode(file)
2013-02-22 23:31:31 -05:00
ext3
new helper: file_inode(file)
2013-02-22 23:31:31 -05:00
ext4
new helper: file_inode(file)
2013-02-22 23:31:31 -05:00
f2fs
new helper: file_inode(file)
2013-02-22 23:31:31 -05:00
fat
new helper: file_inode(file)
2013-02-22 23:31:31 -05:00
freevxfs
new helper: file_inode(file)
2013-02-22 23:31:31 -05:00
fscache
FS-Cache: Clear remaining page count on retrieval cancellation
2012-12-20 22:35:15 +00:00
fuse
new helper: file_inode(file)
2013-02-22 23:31:31 -05:00
gfs2
new helper: file_inode(file)
2013-02-22 23:31:31 -05:00
hfs
new helper: file_inode(file)
2013-02-22 23:31:31 -05:00
hfsplus
new helper: file_inode(file)
2013-02-22 23:31:31 -05:00
hostfs
new helper: file_inode(file)
2013-02-22 23:31:31 -05:00
hpfs
new helper: file_inode(file)
2013-02-22 23:31:31 -05:00
hppfs
new helper: file_inode(file)
2013-02-22 23:31:31 -05:00
hugetlbfs
fs: Preserve error code in get_empty_filp(), part 2
2013-02-22 23:31:32 -05:00
isofs
new helper: file_inode(file)
2013-02-22 23:31:31 -05:00
jbd
jbd: don't wake kjournald unnecessarily
2013-01-14 22:50:45 +01:00
jbd2
Various bug fixes for ext4. Perhaps the most serious bug fixed is one
2013-01-02 09:57:34 -08:00
jffs2
new helper: file_inode(file)
2013-02-22 23:31:31 -05:00
jfs
new helper: file_inode(file)
2013-02-22 23:31:31 -05:00
lockd
new helper: file_inode(file)
2013-02-22 23:31:31 -05:00
logfs
new helper: file_inode(file)
2013-02-22 23:31:31 -05:00
minix
new helper: file_inode(file)
2013-02-22 23:31:31 -05:00
ncpfs
new helper: file_inode(file)
2013-02-22 23:31:31 -05:00
nfs
new helper: file_inode(file)
2013-02-22 23:31:31 -05:00
nfs_common
…
nfsd
new helper: file_inode(file)
2013-02-22 23:31:31 -05:00
nilfs2
new helper: file_inode(file)
2013-02-22 23:31:31 -05:00
nls
…
notify
new helper: file_inode(file)
2013-02-22 23:31:31 -05:00
ntfs
new helper: file_inode(file)
2013-02-22 23:31:31 -05:00
ocfs2
new helper: file_inode(file)
2013-02-22 23:31:31 -05:00
omfs
new helper: file_inode(file)
2013-02-22 23:31:31 -05:00
openpromfs
new helper: file_inode(file)
2013-02-22 23:31:31 -05:00
proc
new helper: file_inode(file)
2013-02-22 23:31:31 -05:00
pstore
pstore: remove __dev* attributes.
2013-01-03 15:57:14 -08:00
qnx4
new helper: file_inode(file)
2013-02-22 23:31:31 -05:00
qnx6
new helper: file_inode(file)
2013-02-22 23:31:31 -05:00
quota
quota: Use the pre-processor to compile out quotactl_cmd_write when !CONFIG_BLOCK
2012-12-13 16:33:24 +01:00
ramfs
new helper: file_inode(file)
2013-02-22 23:31:31 -05:00
reiserfs
new helper: file_inode(file)
2013-02-22 23:31:31 -05:00
romfs
new helper: file_inode(file)
2013-02-22 23:31:31 -05:00
squashfs
new helper: file_inode(file)
2013-02-22 23:31:31 -05:00
sysfs
new helper: file_inode(file)
2013-02-22 23:31:31 -05:00
sysv
new helper: file_inode(file)
2013-02-22 23:31:31 -05:00
ubifs
new helper: file_inode(file)
2013-02-22 23:31:31 -05:00
udf
new helper: file_inode(file)
2013-02-22 23:31:31 -05:00
ufs
new helper: file_inode(file)
2013-02-22 23:31:31 -05:00
xfs
new helper: file_inode(file)
2013-02-22 23:31:31 -05:00
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
fs: Preserve error code in get_empty_filp(), part 2
2013-02-22 23:31:32 -05:00
attr.c
userns: Allow chown and setgid preservation
2012-11-20 04:17:24 -08:00
bad_inode.c
lseek: the "whence" argument is called "whence"
2012-12-17 17:15:12 -08:00
binfmt_aout.c
new helper: file_inode(file)
2013-02-22 23:31:31 -05:00
binfmt_elf_fdpic.c
new helper: file_inode(file)
2013-02-22 23:31:31 -05:00
binfmt_elf.c
new helper: file_inode(file)
2013-02-22 23:31:31 -05:00
binfmt_em86.c
exec: use -ELOOP for max recursion depth
2012-12-17 17:15:23 -08:00
binfmt_flat.c
new helper: file_inode(file)
2013-02-22 23:31:31 -05:00
binfmt_misc.c
new helper: file_inode(file)
2013-02-22 23:31:31 -05:00
binfmt_script.c
exec: do not leave bprm->interp on stack
2012-12-20 17:40:19 -08:00
binfmt_som.c
get rid of pt_regs argument of ->load_binary()
2012-11-28 21:53:38 -05:00
bio-integrity.c
block: Ues bi_pool for bio_integrity_alloc()
2012-09-09 10:35:38 +02:00
bio.c
vfs: fix: don't increase bio_slab_max if krealloc() fails
2012-10-22 22:00:26 +02:00
block_dev.c
new helper: file_inode(file)
2013-02-22 23:31:31 -05:00
buffer.c
new helper: file_inode(file)
2013-02-22 23:31:31 -05:00
char_dev.c
char_dev: pin parent kobject
2012-10-22 08:50:37 +03:00
compat_binfmt_elf.c
coredump: extend core dump note section to contain file names of mapped files
2012-10-06 03:05:17 +09:00
compat_ioctl.c
new helper: file_inode(file)
2013-02-22 23:31:31 -05:00
compat.c
vfs: define struct filename and have getname() return it
2012-10-12 20:14:55 -04:00
coredump.c
new helper: file_inode(file)
2013-02-22 23:31:31 -05:00
coredump.h
coredump: update coredump-related headers
2012-10-06 03:05:15 +09:00
dcache.c
vfs: d_obtain_alias() needs to use "/" as default name.
2012-12-20 18:49:10 -05:00
dcookies.c
…
direct-io.c
direct-io: don't read inode->i_blkbits multiple times
2012-11-29 12:38:44 -08:00
drop_caches.c
…
eventfd.c
fs, eventfd: add procfs fdinfo helper
2012-12-17 17:15:27 -08:00
eventpoll.c
epoll: prevent missed events on EPOLL_CTL_MOD
2013-01-02 09:16:43 -08:00
exec.c
new helper: file_inode(file)
2013-02-22 23:31:31 -05:00
fcntl.c
new helper: file_inode(file)
2013-02-22 23:31:31 -05:00
fhandle.c
Merge branch 'for-3.8' of git://linux-nfs.org/~bfields/linux
2012-12-20 14:04:11 -08:00
fifo.c
fifo: Do not restart open() if it already found a partner
2012-07-16 08:33:14 -07:00
file_table.c
fs: Preserve error code in get_empty_filp(), part 2
2013-02-22 23:31:32 -05:00
file.c
misc: remove __dev* attributes.
2013-01-03 15:57:16 -08:00
filesystems.c
vfs: define struct filename and have getname() return it
2012-10-12 20:14:55 -04:00
fs_struct.c
kill daemonize()
2012-11-28 21:49:02 -05:00
fs-writeback.c
writeback: fix a typo in comment
2012-12-12 17:38:34 -08:00
generic_acl.c
userns: Pass a userns parameter into posix_acl_to_xattr and posix_acl_from_xattr
2012-09-18 01:01:35 -07:00
inode.c
new helper: file_inode(file)
2013-02-22 23:31:31 -05:00
internal.h
writeback: put unused inodes to LRU after writeback completion
2012-11-26 17:41:24 -08:00
ioctl.c
new helper: file_inode(file)
2013-02-22 23:31:31 -05:00
ioprio.c
…
Kconfig
Introduce a new file system, Flash-Friendly File System (F2FS), to Linux 3.8.
2012-12-20 13:54:52 -08:00
Kconfig.binfmt
coredump: make core dump functionality optional
2012-10-06 03:05:15 +09:00
libfs.c
vfs: drop vmtruncate
2012-12-20 18:46:29 -05:00
locks.c
new helper: file_inode(file)
2013-02-22 23:31:31 -05:00
Makefile
f2fs: update Kconfig and Makefile
2012-12-11 13:43:42 +09:00
mbcache.c
…
mount.h
proc: Usable inode numbers for the namespace file descriptors.
2012-11-20 04:19:49 -08:00
mpage.c
…
namei.c
propagate error from get_empty_filp() to its callers
2013-02-22 23:31:32 -05:00
namespace.c
new helper: file_inode(file)
2013-02-22 23:31:31 -05:00
no-block.c
…
open.c
propagate error from get_empty_filp() to its callers
2013-02-22 23:31:32 -05:00
pipe.c
fs: Preserve error code in get_empty_filp(), part 2
2013-02-22 23:31:32 -05:00
pnode.c
VFS: Make clone_mnt()/copy_tree()/collect_mounts() return errors
2012-07-14 16:37:27 +04:00
pnode.h
vfs: Only support slave subtrees across different user namespaces
2012-11-19 05:59:20 -08:00
posix_acl.c
userns: Convert vfs posix_acl support to use kuids and kgids
2012-09-18 01:01:35 -07:00
proc_namespace.c
get rid of magic in proc_namespace.c
2012-07-14 16:32:48 +04:00
read_write.c
new helper: file_inode(file)
2013-02-22 23:31:31 -05:00
read_write.h
compat: fs: Generic compat_sys_sendfile implementation
2012-10-02 21:35:55 -04:00
readdir.c
new helper: file_inode(file)
2013-02-22 23:31:31 -05:00
select.c
switch simple cases of fget_light to fdget
2012-09-26 22:20:08 -04:00
seq_file.c
seq_file: fix new kernel-doc warnings
2013-01-10 14:35:24 -08:00
signalfd.c
fs, epoll: add procfs fdinfo helper
2012-12-17 17:15:27 -08:00
splice.c
new helper: file_inode(file)
2013-02-22 23:31:31 -05:00
stack.c
…
stat.c
vfs: fix readlinkat to retry on ESTALE
2012-12-20 18:50:01 -05:00
statfs.c
vfs: fix user_statfs to retry once on ESTALE errors
2012-12-20 18:50:07 -05:00
super.c
vfs: drop lock/unlock super
2012-10-09 23:33:39 -04:00
sync.c
new helper: file_inode(file)
2013-02-22 23:31:31 -05:00
timerfd.c
switch simple cases of fget_light to fdget
2012-09-26 22:20:08 -04:00
utimes.c
vfs: allow utimensat() calls to retry once on an ESTALE error
2012-12-20 18:50:08 -05:00
xattr_acl.c
userns: Fix posix_acl_file_xattr_userns gid conversion
2012-10-12 13:16:48 -07:00
xattr.c
vfs: make lremovexattr retry once on ESTALE error
2012-12-20 18:50:11 -05:00