push BKL down into ->put_super

Move BKL into ->put_super from the only caller.  A couple of
filesystems had trivial enough ->put_super (only kfree and NULLing of
s_fs_info + stuff in there) to not get any locking: coda, cramfs, efs,
hugetlbfs, omfs, qnx4, shmem, all others got the full treatment.  Most
of them probably don't need it, but I'd rather sort that out individually.
Preferably after all the other BKL pushdowns in that area.

[AV: original used to move lock_super() down as well; these changes are
removed since we don't do lock_super() at all in generic_shutdown_super()
now]
[AV: fuse, btrfs and xfs are known to need no damn BKL, exempt]

Signed-off-by: Christoph Hellwig <hch@lst.de>
Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>

diff --git a/fs/adfs/super.c b/fs/adfs/super.c
index dd9becc..0ec5aaf 100644 (file)
--- a/fs/adfs/super.c
+++ b/fs/adfs/super.c
@@ -132,11 +132,15 @@ static void adfs_put_super(struct super_block *sb)
        int i;
        struct adfs_sb_info *asb = ADFS_SB(sb);
 
+       lock_kernel();
+
        for (i = 0; i < asb->s_map_size; i++)
                brelse(asb->s_map[i].dm_bh);
        kfree(asb->s_map);
        kfree(asb);
        sb->s_fs_info = NULL;
+
+       unlock_kernel();
 }
 
 static int adfs_show_options(struct seq_file *seq, struct vfsmount *mnt)

diff --git a/fs/affs/super.c b/fs/affs/super.c
index 63f5183..d738646 100644 (file)
--- a/fs/affs/super.c
+++ b/fs/affs/super.c
@@ -29,6 +29,8 @@ affs_put_super(struct super_block *sb)
        struct affs_sb_info *sbi = AFFS_SB(sb);
        pr_debug("AFFS: put_super()\n");
 
+       lock_kernel();
+
        if (!(sb->s_flags & MS_RDONLY)) {
                AFFS_ROOT_TAIL(sb, sbi->s_root_bh)->bm_flag = cpu_to_be32(1);
                secs_to_datestamp(get_seconds(),
@@ -42,7 +44,8 @@ affs_put_super(struct super_block *sb)
        affs_brelse(sbi->s_root_bh);
        kfree(sbi);
        sb->s_fs_info = NULL;
-       return;
+
+       unlock_kernel();
 }
 
 static void

diff --git a/fs/afs/super.c b/fs/afs/super.c
index 76828e5..ad0514d 100644 (file)
--- a/fs/afs/super.c
+++ b/fs/afs/super.c
@@ -440,8 +440,12 @@ static void afs_put_super(struct super_block *sb)
 
        _enter("");
 
+       lock_kernel();
+
        afs_put_volume(as->volume);
 
+       unlock_kernel();
+
        _leave("");
 }
 

diff --git a/fs/befs/linuxvfs.c b/fs/befs/linuxvfs.c
index 76afd0d..9367b62 100644 (file)
--- a/fs/befs/linuxvfs.c
+++ b/fs/befs/linuxvfs.c
@@ -737,6 +737,8 @@ parse_options(char *options, befs_mount_options * opts)
 static void
 befs_put_super(struct super_block *sb)
 {
+       lock_kernel();
+
        kfree(BEFS_SB(sb)->mount_opts.iocharset);
        BEFS_SB(sb)->mount_opts.iocharset = NULL;
 
@@ -747,7 +749,8 @@ befs_put_super(struct super_block *sb)
 
        kfree(sb->s_fs_info);
        sb->s_fs_info = NULL;
-       return;
+
+       unlock_kernel();
 }
 
 /* Allocate private field of the superblock, fill it.

diff --git a/fs/bfs/inode.c b/fs/bfs/inode.c
index 4cf3d26..3a9a136 100644 (file)
--- a/fs/bfs/inode.c
+++ b/fs/bfs/inode.c
@@ -217,6 +217,8 @@ static void bfs_put_super(struct super_block *s)
        if (!info)
                return;
 
+       lock_kernel();
+
        if (s->s_dirt)
                bfs_write_super(s);
 
@@ -225,6 +227,8 @@ static void bfs_put_super(struct super_block *s)
        kfree(info->si_imap);
        kfree(info);
        s->s_fs_info = NULL;
+
+       unlock_kernel();
 }
 
 static int bfs_statfs(struct dentry *dentry, struct kstatfs *buf)

diff --git a/fs/cifs/cifsfs.c b/fs/cifs/cifsfs.c
index 0a10a59..0d92114 100644 (file)
--- a/fs/cifs/cifsfs.c
+++ b/fs/cifs/cifsfs.c
@@ -204,6 +204,9 @@ cifs_put_super(struct super_block *sb)
                cFYI(1, ("Empty cifs superblock info passed to unmount"));
                return;
        }
+
+       lock_kernel();
+
        rc = cifs_umount(sb, cifs_sb);
        if (rc)
                cERROR(1, ("cifs_umount failed with return code %d", rc));
@@ -216,7 +219,8 @@ cifs_put_super(struct super_block *sb)
 
        unload_nls(cifs_sb->local_nls);
        kfree(cifs_sb);
-       return;
+
+       unlock_kernel();
 }
 
 static int

diff --git a/fs/ecryptfs/super.c b/fs/ecryptfs/super.c
index fa4c7e7..12d6496 100644 (file)
--- a/fs/ecryptfs/super.c
+++ b/fs/ecryptfs/super.c
@@ -27,6 +27,7 @@
 #include <linux/mount.h>
 #include <linux/key.h>
 #include <linux/seq_file.h>
+#include <linux/smp_lock.h>
 #include <linux/file.h>
 #include <linux/crypto.h>
 #include "ecryptfs_kernel.h"
@@ -120,9 +121,13 @@ static void ecryptfs_put_super(struct super_block *sb)
 {
        struct ecryptfs_sb_info *sb_info = ecryptfs_superblock_to_private(sb);
 
+       lock_kernel();
+
        ecryptfs_destroy_mount_crypt_stat(&sb_info->mount_crypt_stat);
        kmem_cache_free(ecryptfs_sb_info_cache, sb_info);
        ecryptfs_set_superblock_private(sb, NULL);
+
+       unlock_kernel();
 }
 
 /**

diff --git a/fs/exofs/super.c b/fs/exofs/super.c
index 3cdb761..cd1f8b1 100644 (file)
--- a/fs/exofs/super.c
+++ b/fs/exofs/super.c
@@ -258,6 +258,8 @@ static void exofs_put_super(struct super_block *sb)
        int num_pend;
        struct exofs_sb_info *sbi = sb->s_fs_info;
 
+       lock_kernel();
+
        if (sb->s_dirt)
                exofs_write_super(sb);
 
@@ -274,6 +276,8 @@ static void exofs_put_super(struct super_block *sb)
        osduld_put_device(sbi->s_dev);
        kfree(sb->s_fs_info);
        sb->s_fs_info = NULL;
+
+       unlock_kernel();
 }
 
 /*

diff --git a/fs/ext2/super.c b/fs/ext2/super.c
index 932a2bc..a44963d 100644 (file)
--- a/fs/ext2/super.c
+++ b/fs/ext2/super.c
@@ -114,6 +114,8 @@ static void ext2_put_super (struct super_block * sb)
        int i;
        struct ext2_sb_info *sbi = EXT2_SB(sb);
 
+       lock_kernel();
+
        if (sb->s_dirt)
                ext2_write_super(sb);
 
@@ -138,7 +140,7 @@ static void ext2_put_super (struct super_block * sb)
        kfree(sbi->s_blockgroup_lock);
        kfree(sbi);
 
-       return;
+       unlock_kernel();
 }
 
 static struct kmem_cache * ext2_inode_cachep;

diff --git a/fs/ext3/super.c b/fs/ext3/super.c
index 1efd958..546b8d7 100644 (file)
--- a/fs/ext3/super.c
+++ b/fs/ext3/super.c
@@ -398,6 +398,8 @@ static void ext3_put_super (struct super_block * sb)
        struct ext3_super_block *es = sbi->s_es;
        int i, err;
 
+       lock_kernel();
+
        ext3_xattr_put_super(sb);
        err = journal_destroy(sbi->s_journal);
        sbi->s_journal = NULL;
@@ -446,7 +448,8 @@ static void ext3_put_super (struct super_block * sb)
        sb->s_fs_info = NULL;
        kfree(sbi->s_blockgroup_lock);
        kfree(sbi);
-       return;
+
+       unlock_kernel();
 }
 
 static struct kmem_cache *ext3_inode_cachep;

diff --git a/fs/ext4/super.c b/fs/ext4/super.c
index 0d3034c..1d4180b 100644 (file)
--- a/fs/ext4/super.c
+++ b/fs/ext4/super.c
@@ -577,6 +577,7 @@ static void ext4_put_super(struct super_block *sb)
        int i, err;
 
        lock_super(sb);
+       lock_kernel();
        if (sb->s_dirt)
                ext4_write_super(sb);
 
@@ -646,7 +647,6 @@ static void ext4_put_super(struct super_block *sb)
        unlock_super(sb);
        kobject_put(&sbi->s_kobj);
        wait_for_completion(&sbi->s_kobj_unregister);
-       lock_kernel();
        kfree(sbi->s_blockgroup_lock);
        kfree(sbi);
 }

diff --git a/fs/fat/inode.c b/fs/fat/inode.c
index 4978621..2b88c93 100644 (file)
--- a/fs/fat/inode.c
+++ b/fs/fat/inode.c
@@ -451,6 +451,8 @@ static void fat_put_super(struct super_block *sb)
 {
        struct msdos_sb_info *sbi = MSDOS_SB(sb);
 
+       lock_kernel();
+
        if (sb->s_dirt)
                fat_write_super(sb);
 
@@ -470,6 +472,8 @@ static void fat_put_super(struct super_block *sb)
 
        sb->s_fs_info = NULL;
        kfree(sbi);
+
+       unlock_kernel();
 }
 
 static struct kmem_cache *fat_inode_cachep;

diff --git a/fs/freevxfs/vxfs_super.c b/fs/freevxfs/vxfs_super.c
index 1dacda8..cdbd165 100644 (file)
--- a/fs/freevxfs/vxfs_super.c
+++ b/fs/freevxfs/vxfs_super.c
@@ -80,12 +80,16 @@ vxfs_put_super(struct super_block *sbp)
 {
        struct vxfs_sb_info     *infp = VXFS_SBI(sbp);
 
+       lock_kernel();
+
        vxfs_put_fake_inode(infp->vsi_fship);
        vxfs_put_fake_inode(infp->vsi_ilist);
        vxfs_put_fake_inode(infp->vsi_stilist);
 
        brelse(infp->vsi_bp);
        kfree(infp);
+
+       unlock_kernel();
 }
 
 /**

diff --git a/fs/gfs2/super.c b/fs/gfs2/super.c
index 0a68013..c8930b3 100644 (file)
--- a/fs/gfs2/super.c
+++ b/fs/gfs2/super.c
@@ -719,6 +719,8 @@ static void gfs2_put_super(struct super_block *sb)
        int error;
        struct gfs2_jdesc *jd;
 
+       lock_kernel();
+
        /*  Unfreeze the filesystem, if we need to  */
 
        mutex_lock(&sdp->sd_freeze_lock);
@@ -785,6 +787,8 @@ restart:
 
        /*  At this point, we're through participating in the lockspace  */
        gfs2_sys_fs_del(sdp);
+
+       unlock_kernel();
 }
 
 /**

diff --git a/fs/hfs/super.c b/fs/hfs/super.c
index e071e6d..9f5eaa0 100644 (file)
--- a/fs/hfs/super.c
+++ b/fs/hfs/super.c
@@ -65,11 +65,15 @@ static void hfs_write_super(struct super_block *sb)
  */
 static void hfs_put_super(struct super_block *sb)
 {
+       lock_kernel();
+
        if (sb->s_dirt)
                hfs_write_super(sb);
        hfs_mdb_close(sb);
        /* release the MDB's resources */
        hfs_mdb_put(sb);
+
+       unlock_kernel();
 }
 
 /*

diff --git a/fs/hfsplus/super.c b/fs/hfsplus/super.c
index 40bdab7..9b292dc 100644 (file)
--- a/fs/hfsplus/super.c
+++ b/fs/hfsplus/super.c
@@ -199,6 +199,9 @@ static void hfsplus_put_super(struct super_block *sb)
        dprint(DBG_SUPER, "hfsplus_put_super\n");
        if (!sb->s_fs_info)
                return;
+
+       lock_kernel();
+
        if (sb->s_dirt)
                hfsplus_write_super(sb);
        if (!(sb->s_flags & MS_RDONLY) && HFSPLUS_SB(sb).s_vhdr) {
@@ -220,6 +223,8 @@ static void hfsplus_put_super(struct super_block *sb)
                unload_nls(HFSPLUS_SB(sb).nls);
        kfree(sb->s_fs_info);
        sb->s_fs_info = NULL;
+
+       unlock_kernel();
 }
 
 static int hfsplus_statfs(struct dentry *dentry, struct kstatfs *buf)

diff --git a/fs/hpfs/super.c b/fs/hpfs/super.c
index fc77965..437a32e 100644 (file)
--- a/fs/hpfs/super.c
+++ b/fs/hpfs/super.c
@@ -99,11 +99,16 @@ int hpfs_stop_cycles(struct super_block *s, int key, int *c1, int *c2,
 static void hpfs_put_super(struct super_block *s)
 {
        struct hpfs_sb_info *sbi = hpfs_sb(s);
+
+       lock_kernel();
+
        kfree(sbi->sb_cp_table);
        kfree(sbi->sb_bmp_dir);
        unmark_dirty(s);
        s->s_fs_info = NULL;
        kfree(sbi);
+
+       unlock_kernel();
 }
 
 unsigned hpfs_count_one_bitmap(struct super_block *s, secno secno)

diff --git a/fs/isofs/inode.c b/fs/isofs/inode.c
index b4cbe96..068b34b 100644 (file)
--- a/fs/isofs/inode.c
+++ b/fs/isofs/inode.c
@@ -42,11 +42,16 @@ static int isofs_dentry_cmp_ms(struct dentry *dentry, struct qstr *a, struct qst
 static void isofs_put_super(struct super_block *sb)
 {
        struct isofs_sb_info *sbi = ISOFS_SB(sb);
+
 #ifdef CONFIG_JOLIET
+       lock_kernel();
+
        if (sbi->s_nls_iocharset) {
                unload_nls(sbi->s_nls_iocharset);
                sbi->s_nls_iocharset = NULL;
        }
+
+       unlock_kernel();
 #endif
 
        kfree(sbi);

diff --git a/fs/jffs2/super.c b/fs/jffs2/super.c
index 5059e96..37b1212 100644 (file)
--- a/fs/jffs2/super.c
+++ b/fs/jffs2/super.c
@@ -174,6 +174,8 @@ static void jffs2_put_super (struct super_block *sb)
 
        D2(printk(KERN_DEBUG "jffs2: jffs2_put_super()\n"));
 
+       lock_kernel();
+
        if (sb->s_dirt)
                jffs2_write_super(sb);
 
@@ -195,6 +197,8 @@ static void jffs2_put_super (struct super_block *sb)
        if (c->mtd->sync)
                c->mtd->sync(c->mtd);
 
+       unlock_kernel();
+
        D1(printk(KERN_DEBUG "jffs2_put_super returning\n"));
 }
 

diff --git a/fs/jfs/super.c b/fs/jfs/super.c
index d9b0e92..3eb13ad 100644 (file)
--- a/fs/jfs/super.c
+++ b/fs/jfs/super.c
@@ -183,6 +183,9 @@ static void jfs_put_super(struct super_block *sb)
        int rc;
 
        jfs_info("In jfs_put_super");
+
+       lock_kernel();
+
        rc = jfs_umount(sb);
        if (rc)
                jfs_err("jfs_umount failed with return code %d", rc);
@@ -195,6 +198,8 @@ static void jfs_put_super(struct super_block *sb)
        sbi->direct_inode = NULL;
 
        kfree(sbi);
+
+       unlock_kernel();
 }
 
 enum {

diff --git a/fs/minix/inode.c b/fs/minix/inode.c
index daad3c2..7eb5397 100644 (file)
--- a/fs/minix/inode.c
+++ b/fs/minix/inode.c
@@ -35,6 +35,8 @@ static void minix_put_super(struct super_block *sb)
        int i;
        struct minix_sb_info *sbi = minix_sb(sb);
 
+       lock_kernel();
+
        if (!(sb->s_flags & MS_RDONLY)) {
                if (sbi->s_version != MINIX_V3)  /* s_state is now out from V3 sb */
                        sbi->s_ms->s_state = sbi->s_mount_state;
@@ -49,7 +51,7 @@ static void minix_put_super(struct super_block *sb)
        sb->s_fs_info = NULL;
        kfree(sbi);
 
-       return;
+       unlock_kernel();
 }
 
 static struct kmem_cache * minix_inode_cachep;

diff --git a/fs/ncpfs/inode.c b/fs/ncpfs/inode.c
index d642f0e..b99ce20 100644 (file)
--- a/fs/ncpfs/inode.c
+++ b/fs/ncpfs/inode.c
@@ -736,6 +736,8 @@ static void ncp_put_super(struct super_block *sb)
 {
        struct ncp_server *server = NCP_SBP(sb);
 
+       lock_kernel();
+
        ncp_lock_server(server);
        ncp_disconnect(server);
        ncp_unlock_server(server);
@@ -769,6 +771,8 @@ static void ncp_put_super(struct super_block *sb)
        vfree(server->packet);
        sb->s_fs_info = NULL;
        kfree(server);
+
+       unlock_kernel();
 }
 
 static int ncp_statfs(struct dentry *dentry, struct kstatfs *buf)

diff --git a/fs/nilfs2/super.c b/fs/nilfs2/super.c
index 7901d8c..7262e84 100644 (file)
--- a/fs/nilfs2/super.c
+++ b/fs/nilfs2/super.c
@@ -316,6 +316,8 @@ static void nilfs_put_super(struct super_block *sb)
        struct nilfs_sb_info *sbi = NILFS_SB(sb);
        struct the_nilfs *nilfs = sbi->s_nilfs;
 
+       lock_kernel();
+
        if (sb->s_dirt)
                nilfs_write_super(sb);
 
@@ -333,6 +335,8 @@ static void nilfs_put_super(struct super_block *sb)
        sbi->s_super = NULL;
        sb->s_fs_info = NULL;
        kfree(sbi);
+
+       unlock_kernel();
 }
 
 /**

diff --git a/fs/ntfs/super.c b/fs/ntfs/super.c
index 6aa7c47..a9ec4e1 100644 (file)
--- a/fs/ntfs/super.c
+++ b/fs/ntfs/super.c
@@ -2246,6 +2246,9 @@ static void ntfs_put_super(struct super_block *sb)
        ntfs_volume *vol = NTFS_SB(sb);
 
        ntfs_debug("Entering.");
+
+       lock_kernel();
+
 #ifdef NTFS_RW
        /*
         * Commit all inodes while they are still open in case some of them
@@ -2444,7 +2447,8 @@ static void ntfs_put_super(struct super_block *sb)
        }
        sb->s_fs_info = NULL;
        kfree(vol);
-       return;
+
+       unlock_kernel();
 }
 
 /**

diff --git a/fs/ocfs2/super.c b/fs/ocfs2/super.c
index 3eb076c..0273759 100644 (file)
--- a/fs/ocfs2/super.c
+++ b/fs/ocfs2/super.c
@@ -1536,9 +1536,13 @@ static void ocfs2_put_super(struct super_block *sb)
 {
        mlog_entry("(0x%p)\n", sb);
 
+       lock_kernel();
+
        ocfs2_sync_blockdev(sb);
        ocfs2_dismount_volume(sb, 0);
 
+       unlock_kernel();
+
        mlog_exit_void();
 }
 

diff --git a/fs/reiserfs/super.c b/fs/reiserfs/super.c
index 3da0401..90dcb7b 100644 (file)
--- a/fs/reiserfs/super.c
+++ b/fs/reiserfs/super.c
@@ -465,6 +465,8 @@ static void reiserfs_put_super(struct super_block *s)
        struct reiserfs_transaction_handle th;
        th.t_trans_id = 0;
 
+       lock_kernel();
+
        if (s->s_dirt)
                reiserfs_write_super(s);
 
@@ -500,7 +502,7 @@ static void reiserfs_put_super(struct super_block *s)
        kfree(s->s_fs_info);
        s->s_fs_info = NULL;
 
-       return;
+       unlock_kernel();
 }
 
 static struct kmem_cache *reiserfs_inode_cachep;

diff --git a/fs/smbfs/inode.c b/fs/smbfs/inode.c
index fc27fbf..1402d2d 100644 (file)
--- a/fs/smbfs/inode.c
+++ b/fs/smbfs/inode.c
@@ -474,6 +474,8 @@ smb_put_super(struct super_block *sb)
 {
        struct smb_sb_info *server = SMB_SB(sb);
 
+       lock_kernel();
+
        smb_lock_server(server);
        server->state = CONN_INVALID;
        smbiod_unregister_server(server);
@@ -489,6 +491,8 @@ smb_put_super(struct super_block *sb)
        smb_unlock_server(server);
        put_pid(server->conn_pid);
        kfree(server);
+
+       unlock_kernel();
 }
 
 static int smb_fill_super(struct super_block *sb, void *raw_data, int silent)

diff --git a/fs/squashfs/super.c b/fs/squashfs/super.c
index 0adc624..3b52770 100644 (file)
--- a/fs/squashfs/super.c
+++ b/fs/squashfs/super.c
@@ -338,6 +338,8 @@ static int squashfs_remount(struct super_block *sb, int *flags, char *data)
 
 static void squashfs_put_super(struct super_block *sb)
 {
+       lock_kernel();
+
        if (sb->s_fs_info) {
                struct squashfs_sb_info *sbi = sb->s_fs_info;
                squashfs_cache_delete(sbi->block_cache);
@@ -350,6 +352,8 @@ static void squashfs_put_super(struct super_block *sb)
                kfree(sb->s_fs_info);
                sb->s_fs_info = NULL;
        }
+
+       unlock_kernel();
 }
 
 

diff --git a/fs/super.c b/fs/super.c
index 54fd331..bdd7158 100644 (file)
--- a/fs/super.c
+++ b/fs/super.c
@@ -309,7 +309,6 @@ void generic_shutdown_super(struct super_block *sb)
 
                /* bad name - it should be evict_inodes() */
                invalidate_inodes(sb);
-               lock_kernel();
 
                if (sop->put_super)
                        sop->put_super(sb);
@@ -320,8 +319,6 @@ void generic_shutdown_super(struct super_block *sb)
                           "Self-destruct in 5 seconds.  Have a nice day...\n",
                           sb->s_id);
                }
-
-               unlock_kernel();
                put_fs_excl();
        }
        spin_lock(&sb_lock);

diff --git a/fs/sysv/inode.c b/fs/sysv/inode.c
index cd80316..a818986 100644 (file)
--- a/fs/sysv/inode.c
+++ b/fs/sysv/inode.c
@@ -72,6 +72,8 @@ static void sysv_put_super(struct super_block *sb)
 {
        struct sysv_sb_info *sbi = SYSV_SB(sb);
 
+       lock_kernel();
+
        if (sb->s_dirt)
                sysv_write_super(sb);
 
@@ -87,6 +89,8 @@ static void sysv_put_super(struct super_block *sb)
                brelse(sbi->s_bh2);
 
        kfree(sbi);
+
+       unlock_kernel();
 }
 
 static int sysv_statfs(struct dentry *dentry, struct kstatfs *buf)

diff --git a/fs/ubifs/super.c b/fs/ubifs/super.c
index 84f3c7f..522c3fd 100644 (file)
--- a/fs/ubifs/super.c
+++ b/fs/ubifs/super.c
@@ -1684,6 +1684,9 @@ static void ubifs_put_super(struct super_block *sb)
 
        ubifs_msg("un-mount UBI device %d, volume %d", c->vi.ubi_num,
                  c->vi.vol_id);
+
+       lock_kernel();
+
        /*
         * The following asserts are only valid if there has not been a failure
         * of the media. For example, there will be dirty inodes if we failed
@@ -1750,6 +1753,8 @@ static void ubifs_put_super(struct super_block *sb)
        ubi_close_volume(c->ubi);
        mutex_unlock(&c->umount_mutex);
        kfree(c);
+
+       unlock_kernel();
 }
 
 static int ubifs_remount_fs(struct super_block *sb, int *flags, char *data)

diff --git a/fs/udf/super.c b/fs/udf/super.c
index 0ba4410..04802cc 100644 (file)
--- a/fs/udf/super.c
+++ b/fs/udf/super.c
@@ -2062,6 +2062,9 @@ static void udf_put_super(struct super_block *sb)
        struct udf_sb_info *sbi;
 
        sbi = UDF_SB(sb);
+
+       lock_kernel();
+
        if (sbi->s_vat_inode)
                iput(sbi->s_vat_inode);
        if (sbi->s_partitions)
@@ -2077,6 +2080,8 @@ static void udf_put_super(struct super_block *sb)
        kfree(sbi->s_partmaps);
        kfree(sb->s_fs_info);
        sb->s_fs_info = NULL;
+
+       unlock_kernel();
 }
 
 static int udf_sync_fs(struct super_block *sb, int wait)

diff --git a/fs/ufs/super.c b/fs/ufs/super.c
index 74afb9f..2b4d2b6 100644 (file)
--- a/fs/ufs/super.c
+++ b/fs/ufs/super.c
@@ -594,6 +594,9 @@ static void ufs_put_super_internal(struct super_block *sb)
 
        
        UFSD("ENTER\n");
+
+       lock_kernel();
+
        ufs_put_cstotal(sb);
        size = uspi->s_cssize;
        blks = (size + uspi->s_fsize - 1) >> uspi->s_fshift;
@@ -621,6 +624,9 @@ static void ufs_put_super_internal(struct super_block *sb)
                brelse (sbi->s_ucg[i]);
        kfree (sbi->s_ucg);
        kfree (base);
+
+       unlock_kernel();
+
        UFSD("EXIT\n");
 }