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| author | Jan Blunck <jblunck@infradead.org> | 2010-08-15 22:52:36 +0200 |
|---|---|---|
| committer | Arnd Bergmann <arnd@arndb.de> | 2010-10-04 21:10:34 +0200 |
| commit | 74c41429ae5889933a2b9b9d0d2f687baa410766 (patch) | |
| tree | e102d92f2708bc8a1cf9ade061053621e90d7ff4 | |
| parent | db71922217a214e5c9268448e537b54fc1f301ea (diff) | |
| download | linux-3.10-74c41429ae5889933a2b9b9d0d2f687baa410766.tar.gz linux-3.10-74c41429ae5889933a2b9b9d0d2f687baa410766.tar.bz2 linux-3.10-74c41429ae5889933a2b9b9d0d2f687baa410766.zip | |
BKL: Remove BKL from Amiga FFS
The BKL is only used in put_super, fill_super and remount_fs that are all
three protected by the superblocks s_umount rw_semaphore. Therefore it is
safe to remove the BKL entirely.
Signed-off-by: Jan Blunck <jblunck@infradead.org>
Signed-off-by: Arnd Bergmann <arnd@arndb.de>
| -rw-r--r-- | fs/affs/super.c | 23 |
1 files changed, 5 insertions, 18 deletions
diff --git a/fs/affs/super.c b/fs/affs/super.c index 3a6d1dee4a5..a167f96d79f 100644 --- a/fs/affs/super.c +++ b/fs/affs/super.c @@ -16,7 +16,6 @@ #include <linux/parser.h> #include <linux/magic.h> #include <linux/sched.h> -#include <linux/smp_lock.h> #include <linux/slab.h> #include "affs.h" @@ -46,8 +45,6 @@ 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) && sb->s_dirt) affs_commit_super(sb, 1, 1); @@ -56,8 +53,6 @@ affs_put_super(struct super_block *sb) affs_brelse(sbi->s_root_bh); kfree(sbi); sb->s_fs_info = NULL; - - unlock_kernel(); } static void @@ -291,8 +286,6 @@ static int affs_fill_super(struct super_block *sb, void *data, int silent) u8 sig[4]; int ret = -EINVAL; - lock_kernel(); - save_mount_options(sb, data); pr_debug("AFFS: read_super(%s)\n",data ? (const char *)data : "no options"); @@ -302,10 +295,9 @@ static int affs_fill_super(struct super_block *sb, void *data, int silent) sb->s_flags |= MS_NODIRATIME; sbi = kzalloc(sizeof(struct affs_sb_info), GFP_KERNEL); - if (!sbi) { - unlock_kernel(); + if (!sbi) return -ENOMEM; - } + sb->s_fs_info = sbi; mutex_init(&sbi->s_bmlock); spin_lock_init(&sbi->symlink_lock); @@ -316,7 +308,6 @@ static int affs_fill_super(struct super_block *sb, void *data, int silent) printk(KERN_ERR "AFFS: Error parsing options\n"); kfree(sbi->s_prefix); kfree(sbi); - unlock_kernel(); return -EINVAL; } /* N.B. after this point s_prefix must be released */ @@ -487,7 +478,6 @@ got_root: sb->s_root->d_op = &affs_dentry_operations; pr_debug("AFFS: s_flags=%lX\n",sb->s_flags); - unlock_kernel(); return 0; /* @@ -502,7 +492,6 @@ out_error_noinode: kfree(sbi->s_prefix); kfree(sbi); sb->s_fs_info = NULL; - unlock_kernel(); return ret; } @@ -534,7 +523,7 @@ affs_remount(struct super_block *sb, int *flags, char *data) kfree(new_opts); return -EINVAL; } - lock_kernel(); + replace_mount_options(sb, new_opts); sbi->s_flags = mount_flags; @@ -550,17 +539,15 @@ affs_remount(struct super_block *sb, int *flags, char *data) memcpy(sbi->s_volume, volume, 32); spin_unlock(&sbi->symlink_lock); - if ((*flags & MS_RDONLY) == (sb->s_flags & MS_RDONLY)) { - unlock_kernel(); + if ((*flags & MS_RDONLY) == (sb->s_flags & MS_RDONLY)) return 0; - } + if (*flags & MS_RDONLY) { affs_write_super(sb); affs_free_bitmap(sb); } else res = affs_init_bitmap(sb, flags); - unlock_kernel(); return res; } |