AuxXxilium/linux_dsm_epyc7002
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e91f90bb0b
linux_dsm_epyc7002/fs
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Roland Dreier e91f90bb0b aio: wake all waiters when destroying ctx 
The test program below will hang because io_getevents() uses
add_wait_queue_exclusive(), which means the wake_up() in io_destroy() only
wakes up one of the threads.  Fix this by using wake_up_all() in the aio
code paths where we want to make sure no one gets stuck.

	// t.c -- compile with gcc -lpthread -laio t.c

	#include <libaio.h>
	#include <pthread.h>
	#include <stdio.h>
	#include <unistd.h>

	static const int nthr = 2;

	void *getev(void *ctx)
	{
		struct io_event ev;
		io_getevents(ctx, 1, 1, &ev, NULL);
		printf("io_getevents returned\n");
		return NULL;
	}

	int main(int argc, char *argv[])
	{
		io_context_t ctx = 0;
		pthread_t thread[nthr];
		int i;

		io_setup(1024, &ctx);

		for (i = 0; i < nthr; ++i)
			pthread_create(&thread[i], NULL, getev, ctx);

		sleep(1);

		io_destroy(ctx);

		for (i = 0; i < nthr; ++i)
			pthread_join(thread[i], NULL);

		return 0;
	}

Signed-off-by: Roland Dreier <roland@purestorage.com>
Reviewed-by: Jeff Moyer <jmoyer@redhat.com>
Cc: <stable@kernel.org>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2011-03-22 17:44:17 -07:00
..
9p 9p: use the updated offset given by generic_write_checks 2011-03-22 16:32:49 -05:00
adfs adfs: add hexadecimal filetype suffix option 2011-03-22 17:44:17 -07:00
affs fs: change to new flag variable 2011-03-17 14:02:57 +01:00
afs afs: Fix oops in afs_unlink_writeback 2011-02-25 11:12:37 -08:00
autofs4 lose 'mounting_here' argument in ->d_manage() 2011-03-18 10:01:59 -04:00
befs befs: don't pass huge structs by value 2011-01-13 08:03:15 -08:00
bfs bfs: fix bitmap size argument to find_first_zero_bit() 2011-03-21 08:35:12 -04:00
btrfs Merge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/jikos/trivial 2011-03-18 10:37:40 -07:00
cachefiles CacheFiles: Add calls to path-based security hooks 2011-01-24 10:49:45 +11:00
ceph ceph: rename dentry_release -> d_release, fix comment 2011-03-21 12:24:26 -07:00
cifs [CIFS] update cifs version 2011-02-21 22:31:47 +00:00
coda codafs: fix compile warning when CONFIG_SYSCTL=n 2011-03-22 17:44:16 -07:00
configfs configfs: change depends -> select SYSFS 2011-01-16 21:22:29 +00:00
cramfs cramfs: generate unique inode number for better inode cache usage 2011-01-13 08:03:23 -08:00
debugfs debugfs: Fix filesystem reference counting on debugfs_remove() failure 2011-02-18 08:07:18 -08:00
devpts fs: devpts_pty_new() return -ENOMEM if dentry allocation failed 2011-03-21 00:59:24 -04:00
dlm dlm: use alloc_workqueue function 2011-03-10 13:22:34 -06:00
ecryptfs eCryptfs: Copy up lower inode attrs in getattr 2011-02-21 14:46:36 -06:00
efs fs: icache RCU free inodes 2011-01-07 17:50:26 +11:00
exofs exofs: i_nlink races in rename() 2011-03-03 01:28:17 -05:00
exportfs vfs: Add open by file handle support 2011-03-15 02:21:44 -04:00
ext2 Merge branch 'master' of git://git.infradead.org/users/eparis/selinux into next 2011-03-08 11:38:10 +11:00
ext3 Merge branch 'for_linus' of git://git.kernel.org/pub/scm/linux/kernel/git/jack/linux-fs-2.6 2011-03-17 17:41:19 -07:00
ext4 Merge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/jikos/trivial 2011-03-18 10:37:40 -07:00
fat exportfs: Return the minimum required handle size 2011-03-14 09:15:28 -04:00
freevxfs fs: icache RCU free inodes 2011-01-07 17:50:26 +11:00
fscache FS-Cache: Fix operation handling 2011-01-14 09:23:36 -08:00
fuse mm: add replace_page_cache_page() function 2011-03-22 17:44:02 -07:00
gfs2 Merge branch 'trivial' of git://git.kernel.org/pub/scm/linux/kernel/git/mmarek/kbuild-2.6 2011-03-20 18:14:55 -07:00
hfs hfs: fix rename() over non-empty directory 2011-03-03 01:28:40 -05:00
hfsplus hfsplus: fix up a comparism in hfsplus_file_extend 2011-02-03 16:34:18 -07:00
hostfs switch hostfs 2011-01-12 20:03:42 -05:00
hpfs hpfs: remove the BKL 2011-03-02 22:27:36 +01:00
hppfs fs: icache RCU free inodes 2011-01-07 17:50:26 +11:00
hugetlbfs mm: hugetlbfs: change remove_from_page_cache 2011-03-22 17:44:02 -07:00
isofs exportfs: Return the minimum required handle size 2011-03-14 09:15:28 -04:00
jbd jbd: Remove one to many n's in a word. 2011-02-28 21:55:58 +01:00
jbd2 jbd: Remove one to many n's in a word. 2011-02-28 21:55:58 +01:00
jffs2 Merge branch 'master' of git://git.infradead.org/users/eparis/selinux into next 2011-03-08 11:38:10 +11:00
jfs Merge branch 'trivial' of git://git.kernel.org/pub/scm/linux/kernel/git/mmarek/kbuild-2.6 2011-03-20 18:14:55 -07:00
lockd NLM: Fix "kernel BUG at fs/lockd/host.c:417!" or ".../host.c:283!" 2011-01-25 15:24:47 -05:00
logfs Merge branch 'for-2.6.38/core' of git://git.kernel.dk/linux-2.6-block 2011-01-13 10:45:01 -08:00
minix minix: i_nlink races in rename() 2011-03-03 01:28:16 -05:00
ncpfs fs: change to new flag variable 2011-03-17 14:02:57 +01:00
nfs nfs: lock() vs unlock() typo 2011-03-21 00:45:50 -04:00
nfs_common NFS: Prevent memory allocation failure in nfsacl_encode() 2011-01-25 15:24:47 -05:00
nfsd don't pass 'mounting_here' flag to follow_down() 2011-03-18 09:04:20 -04:00
nilfs2 nilfs2: get rid of nilfs_sb_info structure 2011-03-09 11:54:26 +09:00
nls
notify Remove one to many n's in a word 2011-03-01 15:47:58 +01:00
ntfs fs: change to new flag variable 2011-03-17 14:02:57 +01:00
ocfs2 Merge branch 'trivial' of git://git.kernel.org/pub/scm/linux/kernel/git/mmarek/kbuild-2.6 2011-03-20 18:14:55 -07:00
omfs omfs: make readdir stop when filldir says so 2011-03-05 16:24:12 -05:00
openpromfs fs: icache RCU free inodes 2011-01-07 17:50:26 +11:00
partitions Increase OSF partition limit from 8 to 18 2011-03-16 08:04:07 -07:00
proc smaps: have smaps show transparent huge pages 2011-03-22 17:44:04 -07:00
pstore pstore: use mount option instead sysfs to tweak kmsg_bytes 2011-03-21 13:50:05 -07:00
qnx4 fs: icache RCU free inodes 2011-01-07 17:50:26 +11:00
quota quota: return -ENOMEM when memory allocation fails 2011-02-24 11:42:44 +01:00
ramfs convert get_sb_nodev() users 2010-10-29 04:16:31 -04:00
reiserfs Merge branch 'trivial' of git://git.kernel.org/pub/scm/linux/kernel/git/mmarek/kbuild-2.6 2011-03-20 18:14:55 -07:00
romfs fs: icache RCU free inodes 2011-01-07 17:50:26 +11:00
squashfs squashfs: fix use of uninitialised variable in zlib & xz decompressors 2011-01-26 10:50:05 +10:00
sysfs kconfig: rename CONFIG_EMBEDDED to CONFIG_EXPERT 2011-01-20 17:02:05 -08:00
sysv sysv: i_nlink races in rename() 2011-03-03 01:28:16 -05:00
ubifs Merge branch 'linux-next' of git://git.infradead.org/ubifs-2.6 2011-03-18 10:50:27 -07:00
udf Merge branch 'for_linus' of git://git.kernel.org/pub/scm/linux/kernel/git/jack/linux-udf-2.6 2011-03-17 17:29:38 -07:00
ufs Merge branch 'config' of git://git.kernel.org/pub/scm/linux/kernel/git/arnd/bkl 2011-03-16 17:21:00 -07:00
xfs Merge branch 'for-linus' of git://oss.sgi.com/xfs/xfs 2011-03-21 14:24:56 -07:00
aio.c aio: wake all waiters when destroying ctx 2011-03-22 17:44:17 -07:00
anon_inodes.c sanitize vfsmount refcounting changes 2011-01-16 13:47:07 -05:00
attr.c
bad_inode.c fs: provide rcu-walk aware permission i_ops 2011-01-07 17:50:29 +11:00
binfmt_aout.c Don't dump task struct in a.out core-dumps 2010-10-14 10:57:40 -07:00
binfmt_elf_fdpic.c
binfmt_elf.c binfmt_elf: quiet GCC-4.6 'set but not used' warning in load_elf_binary() 2011-03-22 17:44:15 -07:00
binfmt_em86.c
binfmt_flat.c
binfmt_misc.c convert get_sb_single() users 2010-10-29 04:16:28 -04:00
binfmt_script.c
binfmt_som.c
bio-integrity.c bio-integrity: mark kintegrityd_wq highpri and CPU intensive 2011-01-03 15:01:48 +01:00
bio.c fs: use appropriate printk priority levels 2011-03-22 17:44:10 -07:00
block_dev.c fs/block_dev.c: fix new kernel-doc warning 2011-02-28 18:08:31 -08:00
buffer.c fs: Use this_cpu_inc_return in buffer.c 2010-12-17 15:18:05 +01:00
char_dev.c Merge branch 'for-2.6.38/core' of git://git.kernel.dk/linux-2.6-block 2011-01-13 10:45:01 -08:00
compat_binfmt_elf.c
compat_ioctl.c Merge branch 'tty-next' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/tty-2.6 2011-01-07 14:39:20 -08:00
compat.c select: remove unused MAX_SELECT_SECONDS 2011-03-21 00:16:08 -04:00
dcache.c Merge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/viro/vfs-2.6 2011-03-18 10:51:11 -07:00
dcookies.c
direct-io.c Merge branch 'master' into for-next 2011-02-15 10:24:31 +01:00
drop_caches.c
eventfd.c Docbook: add fs/eventfd.c and fix typos in it 2011-02-21 15:07:04 -08:00
eventpoll.c epoll: fix compiler warning and optimize the non-blocking path 2011-03-22 17:44:15 -07:00
exec.c Small typo fix... 2011-03-21 00:16:09 -04:00
fcntl.c New kind of open files - "location only". 2011-03-15 02:21:45 -04:00
fhandle.c vfs: Add open by file handle support 2011-03-15 02:21:44 -04:00
fifo.c Filesystem: fifo: Fixed coding style issue. 2011-03-21 00:16:09 -04:00
file_table.c Merge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/viro/vfs-2.6 2011-03-16 13:26:17 -07:00
file.c
filesystems.c fs: rcu-walk for path lookup 2011-01-07 17:50:27 +11:00
fs_struct.c sanitize vfsmount refcounting changes 2011-01-16 13:47:07 -05:00
fs-writeback.c fs/fs-writeback.c: fix sync_inodes_sb() return value kernel-doc 2011-01-13 17:32:48 -08:00
generic_acl.c fs: provide simple rcu-walk generic_check_acl implementation 2011-01-07 17:50:29 +11:00
inode.c fs/inode: Fix kernel-doc format for inode_init_owner 2011-03-21 00:16:08 -04:00
internal.h FS: lookup_mnt() is only used in the core fs routines now 2011-03-21 12:13:10 -04:00
ioctl.c vfs: cleanup do_vfs_ioctl() 2011-03-21 00:16:08 -04:00
ioprio.c ioprio: grab rcu_read_lock in sys_ioprio_{set,get}() 2010-11-15 10:23:31 +01:00
Kconfig Merge branch 'release' of git://git.kernel.org/pub/scm/linux/kernel/git/aegl/linux-2.6 2011-03-16 19:01:29 -07:00
Kconfig.binfmt coredump: default CONFIG_CORE_DUMP_DEFAULT_ELF_HEADERS=y 2010-10-27 18:03:12 -07:00
libfs.c pass default dentry_operations to mount_pseudo() 2011-01-12 20:03:43 -05:00
locks.c fs/locks.c: Remove stale FIXME left over from BKL conversion 2011-03-05 10:55:59 +01:00
Makefile Merge branch 'release' of git://git.kernel.org/pub/scm/linux/kernel/git/aegl/linux-2.6 2011-03-16 19:01:29 -07:00
mbcache.c ext2: Resolve 'dereferencing pointer to incomplete type' when enabling EXT2_XATTR_DEBUG 2011-01-10 19:04:08 +01:00
mpage.c fs/mpage.c: consolidate code 2011-01-13 17:32:32 -08:00
namei.c lose 'mounting_here' argument in ->d_manage() 2011-03-18 10:01:59 -04:00
namespace.c fs: use appropriate printk priority levels 2011-03-22 17:44:10 -07:00
nfsctl.c open-style analog of vfs_path_lookup() 2011-03-14 09:15:28 -04:00
no-block.c llseek: automatically add .llseek fop 2010-10-15 15:53:27 +02:00
open.c fs: Use BUG_ON(!mnt) at dentry_open(). 2011-03-21 01:10:41 -04:00
pipe.c Fix broken "pipe: use event aware wakeups" optimization 2011-01-20 16:21:59 -08:00
pnode.c fs: scale mntget/mntput 2011-01-07 17:50:33 +11:00
pnode.h
posix_acl.c NFS: Prevent memory allocation failure in nfsacl_encode() 2011-01-25 15:24:47 -05:00
read_write.c fix signedness mess in rw_verify_area() on 64bit architectures 2011-01-12 20:06:58 -05:00
read_write.h
readdir.c
select.c select: remove unused MAX_SELECT_SECONDS 2011-03-21 00:16:08 -04:00
seq_file.c fs: take dcache_lock inside __d_path 2010-10-25 21:26:12 -04:00
signalfd.c Merge branch 'hwpoison' of git://git.kernel.org/pub/scm/linux/kernel/git/ak/linux-mce-2.6 2010-10-26 10:13:10 -07:00
splice.c Merge branch 'for-2.6.38/core' of git://git.kernel.dk/linux-2.6-block 2011-01-13 10:45:01 -08:00
stack.c
stat.c readlinkat(), fchownat() and fstatat() with empty relative pathnames 2011-03-15 02:21:45 -04:00
statfs.c clean statfs-like syscalls up 2011-03-14 09:15:28 -04:00
super.c vfs: split off vfsmount-related parts of vfs_kern_mount() 2011-03-17 22:10:41 -04:00
sync.c introduce sys_syncfs to sync a single file system 2011-03-21 00:40:29 -04:00
timerfd.c llseek: automatically add .llseek fop 2010-10-15 15:53:27 +02:00
utimes.c
xattr_acl.c
xattr.c