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authorAl Viro <viro@zeniv.linux.org.uk>2009-06-16 23:47:45 -0400
committerAl Viro <viro@zeniv.linux.org.uk>2009-06-17 00:36:37 -0400
commitcc46759a8c0ac4c6f13aa4b0f470305c05f600e1 (patch)
tree040decb4fb0625527ea882fb069385fb9be0cdaf /fs/minix
parente7ec952f6aa6ac1649ac49eb5e4de5b92c829d1e (diff)
downloadlinux-linaro-cc46759a8c0ac4c6f13aa4b0f470305c05f600e1.tar.gz
get rid of BKL in fs/minix
Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
Diffstat (limited to 'fs/minix')
-rw-r--r--fs/minix/bitmap.c25
-rw-r--r--fs/minix/dir.c5
-rw-r--r--fs/minix/inode.c4
3 files changed, 14 insertions, 20 deletions
diff --git a/fs/minix/bitmap.c b/fs/minix/bitmap.c
index 3aebe322271..6ac693faae4 100644
--- a/fs/minix/bitmap.c
+++ b/fs/minix/bitmap.c
@@ -12,13 +12,14 @@
/* bitmap.c contains the code that handles the inode and block bitmaps */
#include "minix.h"
-#include <linux/smp_lock.h>
#include <linux/buffer_head.h>
#include <linux/bitops.h>
#include <linux/sched.h>
static const int nibblemap[] = { 4,3,3,2,3,2,2,1,3,2,2,1,2,1,1,0 };
+static DEFINE_SPINLOCK(bitmap_lock);
+
static unsigned long count_free(struct buffer_head *map[], unsigned numblocks, __u32 numbits)
{
unsigned i, j, sum = 0;
@@ -69,11 +70,11 @@ void minix_free_block(struct inode *inode, unsigned long block)
return;
}
bh = sbi->s_zmap[zone];
- lock_kernel();
+ spin_lock(&bitmap_lock);
if (!minix_test_and_clear_bit(bit, bh->b_data))
printk("minix_free_block (%s:%lu): bit already cleared\n",
sb->s_id, block);
- unlock_kernel();
+ spin_unlock(&bitmap_lock);
mark_buffer_dirty(bh);
return;
}
@@ -88,18 +89,18 @@ int minix_new_block(struct inode * inode)
struct buffer_head *bh = sbi->s_zmap[i];
int j;
- lock_kernel();
+ spin_lock(&bitmap_lock);
j = minix_find_first_zero_bit(bh->b_data, bits_per_zone);
if (j < bits_per_zone) {
minix_set_bit(j, bh->b_data);
- unlock_kernel();
+ spin_unlock(&bitmap_lock);
mark_buffer_dirty(bh);
j += i * bits_per_zone + sbi->s_firstdatazone-1;
if (j < sbi->s_firstdatazone || j >= sbi->s_nzones)
break;
return j;
}
- unlock_kernel();
+ spin_unlock(&bitmap_lock);
}
return 0;
}
@@ -211,10 +212,10 @@ void minix_free_inode(struct inode * inode)
minix_clear_inode(inode); /* clear on-disk copy */
bh = sbi->s_imap[ino];
- lock_kernel();
+ spin_lock(&bitmap_lock);
if (!minix_test_and_clear_bit(bit, bh->b_data))
printk("minix_free_inode: bit %lu already cleared\n", bit);
- unlock_kernel();
+ spin_unlock(&bitmap_lock);
mark_buffer_dirty(bh);
out:
clear_inode(inode); /* clear in-memory copy */
@@ -237,7 +238,7 @@ struct inode * minix_new_inode(const struct inode * dir, int * error)
j = bits_per_zone;
bh = NULL;
*error = -ENOSPC;
- lock_kernel();
+ spin_lock(&bitmap_lock);
for (i = 0; i < sbi->s_imap_blocks; i++) {
bh = sbi->s_imap[i];
j = minix_find_first_zero_bit(bh->b_data, bits_per_zone);
@@ -245,17 +246,17 @@ struct inode * minix_new_inode(const struct inode * dir, int * error)
break;
}
if (!bh || j >= bits_per_zone) {
- unlock_kernel();
+ spin_unlock(&bitmap_lock);
iput(inode);
return NULL;
}
if (minix_test_and_set_bit(j, bh->b_data)) { /* shouldn't happen */
- unlock_kernel();
+ spin_unlock(&bitmap_lock);
printk("minix_new_inode: bit already set\n");
iput(inode);
return NULL;
}
- unlock_kernel();
+ spin_unlock(&bitmap_lock);
mark_buffer_dirty(bh);
j += i * bits_per_zone;
if (!j || j > sbi->s_ninodes) {
diff --git a/fs/minix/dir.c b/fs/minix/dir.c
index e5f206467e4..d407e7a0b6f 100644
--- a/fs/minix/dir.c
+++ b/fs/minix/dir.c
@@ -11,7 +11,6 @@
#include "minix.h"
#include <linux/buffer_head.h>
#include <linux/highmem.h>
-#include <linux/smp_lock.h>
#include <linux/swap.h>
typedef struct minix_dir_entry minix_dirent;
@@ -20,6 +19,7 @@ typedef struct minix3_dir_entry minix3_dirent;
static int minix_readdir(struct file *, void *, filldir_t);
const struct file_operations minix_dir_operations = {
+ .llseek = generic_file_llseek,
.read = generic_read_dir,
.readdir = minix_readdir,
.fsync = simple_fsync,
@@ -102,8 +102,6 @@ static int minix_readdir(struct file * filp, void * dirent, filldir_t filldir)
char *name;
__u32 inumber;
- lock_kernel();
-
pos = (pos + chunk_size-1) & ~(chunk_size-1);
if (pos >= inode->i_size)
goto done;
@@ -146,7 +144,6 @@ static int minix_readdir(struct file * filp, void * dirent, filldir_t filldir)
done:
filp->f_pos = (n << PAGE_CACHE_SHIFT) | offset;
- unlock_kernel();
return 0;
}
diff --git a/fs/minix/inode.c b/fs/minix/inode.c
index f91a2369359..74ea82d7216 100644
--- a/fs/minix/inode.c
+++ b/fs/minix/inode.c
@@ -35,8 +35,6 @@ 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;
@@ -50,8 +48,6 @@ static void minix_put_super(struct super_block *sb)
kfree(sbi->s_imap);
sb->s_fs_info = NULL;
kfree(sbi);
-
- unlock_kernel();
}
static struct kmem_cache * minix_inode_cachep;