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| author | Alessio Igor Bogani <abogani@texware.it> | 2009-04-24 09:06:53 +0200 |
|---|---|---|
| committer | Al Viro <viro@zeniv.linux.org.uk> | 2009-05-09 10:49:38 -0400 |
| commit | 67e55205ec55cc7899f1d783f217961596798419 (patch) | |
| tree | 45dd7351f9721a46ecb448f0571fb10db3259147 | |
| parent | 091bf7624d1c90cec9e578a18529f615213ff847 (diff) | |
| download | linux-stable-67e55205ec55cc7899f1d783f217961596798419.tar.gz linux-stable-67e55205ec55cc7899f1d783f217961596798419.tar.bz2 linux-stable-67e55205ec55cc7899f1d783f217961596798419.zip | |
vfs: umount_begin BKL pushdown
Push BKL down into ->umount_begin()
Signed-off-by: Alessio Igor Bogani <abogani@texware.it>
Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
| -rw-r--r-- | fs/9p/vfs_super.c | 6 | ||||
| -rw-r--r-- | fs/cifs/cifsfs.c | 3 | ||||
| -rw-r--r-- | fs/fuse/inode.c | 3 | ||||
| -rw-r--r-- | fs/namespace.c | 2 | ||||
| -rw-r--r-- | fs/nfs/super.c | 7 |
5 files changed, 17 insertions, 4 deletions
diff --git a/fs/9p/vfs_super.c b/fs/9p/vfs_super.c index 5f8ab8adb5f5..7d23214e5599 100644 --- a/fs/9p/vfs_super.c +++ b/fs/9p/vfs_super.c @@ -37,6 +37,7 @@ #include <linux/mount.h> #include <linux/idr.h> #include <linux/sched.h> +#include <linux/smp_lock.h> #include <net/9p/9p.h> #include <net/9p/client.h> @@ -230,9 +231,12 @@ static int v9fs_show_options(struct seq_file *m, struct vfsmount *mnt) static void v9fs_umount_begin(struct super_block *sb) { - struct v9fs_session_info *v9ses = sb->s_fs_info; + struct v9fs_session_info *v9ses; + lock_kernel(); + v9ses = sb->s_fs_info; v9fs_session_cancel(v9ses); + unlock_kernel(); } static const struct super_operations v9fs_super_ops = { diff --git a/fs/cifs/cifsfs.c b/fs/cifs/cifsfs.c index 0d6d8b573652..355e0efec0cf 100644 --- a/fs/cifs/cifsfs.c +++ b/fs/cifs/cifsfs.c @@ -35,6 +35,7 @@ #include <linux/delay.h> #include <linux/kthread.h> #include <linux/freezer.h> +#include <linux/smp_lock.h> #include "cifsfs.h" #include "cifspdu.h" #define DECLARE_GLOBALS_HERE @@ -530,6 +531,7 @@ static void cifs_umount_begin(struct super_block *sb) if (tcon == NULL) return; + lock_kernel(); read_lock(&cifs_tcp_ses_lock); if (tcon->tc_count == 1) tcon->tidStatus = CifsExiting; @@ -548,6 +550,7 @@ static void cifs_umount_begin(struct super_block *sb) } /* BB FIXME - finish add checks for tidStatus BB */ + unlock_kernel(); return; } diff --git a/fs/fuse/inode.c b/fs/fuse/inode.c index 459b73dd45e1..d1bc4d33ccbc 100644 --- a/fs/fuse/inode.c +++ b/fs/fuse/inode.c @@ -19,6 +19,7 @@ #include <linux/random.h> #include <linux/sched.h> #include <linux/exportfs.h> +#include <linux/smp_lock.h> MODULE_AUTHOR("Miklos Szeredi <miklos@szeredi.hu>"); MODULE_DESCRIPTION("Filesystem in Userspace"); @@ -259,7 +260,9 @@ struct inode *fuse_iget(struct super_block *sb, u64 nodeid, static void fuse_umount_begin(struct super_block *sb) { + lock_kernel(); fuse_abort_conn(get_fuse_conn_super(sb)); + unlock_kernel(); } static void fuse_send_destroy(struct fuse_conn *fc) diff --git a/fs/namespace.c b/fs/namespace.c index 41196209a906..0d2003fb4377 100644 --- a/fs/namespace.c +++ b/fs/namespace.c @@ -1073,9 +1073,7 @@ static int do_umount(struct vfsmount *mnt, int flags) */ if (flags & MNT_FORCE && sb->s_op->umount_begin) { - lock_kernel(); sb->s_op->umount_begin(sb); - unlock_kernel(); } /* diff --git a/fs/nfs/super.c b/fs/nfs/super.c index 6717200923fe..1679a164c8c9 100644 --- a/fs/nfs/super.c +++ b/fs/nfs/super.c @@ -683,9 +683,12 @@ static int nfs_show_stats(struct seq_file *m, struct vfsmount *mnt) */ static void nfs_umount_begin(struct super_block *sb) { - struct nfs_server *server = NFS_SB(sb); + struct nfs_server *server; struct rpc_clnt *rpc; + lock_kernel(); + + server = NFS_SB(sb); /* -EIO all pending I/O */ rpc = server->client_acl; if (!IS_ERR(rpc)) @@ -693,6 +696,8 @@ static void nfs_umount_begin(struct super_block *sb) rpc = server->client; if (!IS_ERR(rpc)) rpc_killall_tasks(rpc); + + unlock_kernel(); } /* |