diff options
author | Arnd Bergmann <arnd@arndb.de> | 2010-02-24 13:25:33 +0100 |
---|---|---|
committer | Arnd Bergmann <arnd@arndb.de> | 2010-10-04 21:10:51 +0200 |
commit | 60056794127a25d641465b706e8828186f7a2e1f (patch) | |
tree | d325fbc91d9eb5f1373d2a6c90dfe5bd34c4cc7d /fs | |
parent | 3dbc4b32d0b39701cbec65582e196a20889155fb (diff) |
BKL: Remove BKL from OCFS2
The BKL in ocfs2/dlmfs is used in put_super, fill_super and remount_fs
that are all three protected by the superblocks s_umount rw_semaphore.
The use in ocfs2_control_open is evidently unrelated and the function
is protected by ocfs2_control_lock.
Therefore it is safe to remove the BKL entirely.
Signed-off-by: Arnd Bergmann <arnd@arndb.de>
Cc: Mark Fasheh <mfasheh@suse.com>
Cc: Joel Becker <joel.becker@oracle.com>
Diffstat (limited to 'fs')
-rw-r--r-- | fs/ocfs2/dlmfs/dlmfs.c | 9 | ||||
-rw-r--r-- | fs/ocfs2/stack_user.c | 3 | ||||
-rw-r--r-- | fs/ocfs2/super.c | 12 |
3 files changed, 1 insertions, 23 deletions
diff --git a/fs/ocfs2/dlmfs/dlmfs.c b/fs/ocfs2/dlmfs/dlmfs.c index 667d7ceba8c..c2903b84bb7 100644 --- a/fs/ocfs2/dlmfs/dlmfs.c +++ b/fs/ocfs2/dlmfs/dlmfs.c @@ -44,7 +44,6 @@ #include <linux/string.h> #include <linux/backing-dev.h> #include <linux/poll.h> -#include <linux/smp_lock.h> #include <asm/uaccess.h> @@ -589,27 +588,21 @@ static int dlmfs_fill_super(struct super_block * sb, struct inode * inode; struct dentry * root; - lock_kernel(); - sb->s_maxbytes = MAX_LFS_FILESIZE; sb->s_blocksize = PAGE_CACHE_SIZE; sb->s_blocksize_bits = PAGE_CACHE_SHIFT; sb->s_magic = DLMFS_MAGIC; sb->s_op = &dlmfs_ops; inode = dlmfs_get_root_inode(sb); - if (!inode) { - unlock_kernel(); + if (!inode) return -ENOMEM; - } root = d_alloc_root(inode); if (!root) { iput(inode); - unlock_kernel(); return -ENOMEM; } sb->s_root = root; - unlock_kernel(); return 0; } diff --git a/fs/ocfs2/stack_user.c b/fs/ocfs2/stack_user.c index 2dc57bca068..0e68f542ef2 100644 --- a/fs/ocfs2/stack_user.c +++ b/fs/ocfs2/stack_user.c @@ -22,7 +22,6 @@ #include <linux/miscdevice.h> #include <linux/mutex.h> #include <linux/slab.h> -#include <linux/smp_lock.h> #include <linux/reboot.h> #include <asm/uaccess.h> @@ -612,12 +611,10 @@ static int ocfs2_control_open(struct inode *inode, struct file *file) return -ENOMEM; p->op_this_node = -1; - lock_kernel(); mutex_lock(&ocfs2_control_lock); file->private_data = p; list_add(&p->op_list, &ocfs2_control_private_list); mutex_unlock(&ocfs2_control_lock); - unlock_kernel(); return 0; } diff --git a/fs/ocfs2/super.c b/fs/ocfs2/super.c index b7e4f2d19d4..b7d724393b5 100644 --- a/fs/ocfs2/super.c +++ b/fs/ocfs2/super.c @@ -609,8 +609,6 @@ static int ocfs2_remount(struct super_block *sb, int *flags, char *data) struct mount_options parsed_options; struct ocfs2_super *osb = OCFS2_SB(sb); - lock_kernel(); - if (!ocfs2_parse_options(sb, data, &parsed_options, 1) || !ocfs2_check_set_options(sb, &parsed_options)) { ret = -EINVAL; @@ -717,7 +715,6 @@ unlock_osb: MS_POSIXACL : 0); } out: - unlock_kernel(); return ret; } @@ -1002,8 +999,6 @@ static int ocfs2_fill_super(struct super_block *sb, void *data, int silent) char nodestr[8]; struct ocfs2_blockcheck_stats stats; - lock_kernel(); - mlog_entry("%p, %p, %i", sb, data, silent); if (!ocfs2_parse_options(sb, data, &parsed_options, 0)) { @@ -1181,7 +1176,6 @@ static int ocfs2_fill_super(struct super_block *sb, void *data, int silent) atomic_set(&osb->vol_state, VOLUME_DISABLED); wake_up(&osb->osb_mount_event); mlog_exit(status); - unlock_kernel(); return status; } } @@ -1196,7 +1190,6 @@ static int ocfs2_fill_super(struct super_block *sb, void *data, int silent) ocfs2_orphan_scan_start(osb); mlog_exit(status); - unlock_kernel(); return status; read_super_error: @@ -1212,7 +1205,6 @@ read_super_error: } mlog_exit(status); - unlock_kernel(); return status; } @@ -1645,13 +1637,9 @@ 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(); } |