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[PATCH] sem2mutex: fs/

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Semaphore to mutex conversion.

The conversion was generated via scripts, and the result was validated
automatically via a script as well.

Signed-off-by: Ingo Molnar <mingo@elte.hu>
Cc: Eric Van Hensbergen <ericvh@ericvh.myip.org>
Cc: Robert Love <rml@tech9.net>
Cc: Thomas Gleixner <tglx@linutronix.de>
Cc: David Woodhouse <dwmw2@infradead.org>
Cc: Neil Brown <neilb@cse.unsw.edu.au>
Cc: Trond Myklebust <trond.myklebust@fys.uio.no>
Cc: Dave Kleikamp <shaggy@austin.ibm.com>
Signed-off-by: Andrew Morton <akpm@osdl.org>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>
This commit is contained in:
Ingo Molnar 2006-03-26 01:37:12 -08:00 • committed by Linus Torvalds
parent e655a250d5
commit 353ab6e97b
11 changed files with 99 additions and 89 deletions
Download patch file Download diff file Expand all files Collapse all files

31
fs/cramfs/inode.c
View file

@ -22,6 +22,7 @@
#include <linux/cramfs_fs_sb.h>
#include <linux/buffer_head.h>
#include <linux/vfs.h>
#include <linux/mutex.h>
#include <asm/semaphore.h>
#include <asm/uaccess.h>
@ -31,7 +32,7 @@ static struct inode_operations cramfs_dir_inode_operations;
static struct file_operations cramfs_directory_operations;
static struct address_space_operations cramfs_aops;
static DECLARE_MUTEX(read_mutex);
static DEFINE_MUTEX(read_mutex);
/* These two macros may change in future, to provide better st_ino
@ -250,20 +251,20 @@ static int cramfs_fill_super(struct super_block *sb, void *data, int silent)
memset(sbi, 0, sizeof(struct cramfs_sb_info));
/* Invalidate the read buffers on mount: think disk change.. */
down(&read_mutex);
mutex_lock(&read_mutex);
for (i = 0; i < READ_BUFFERS; i++)
buffer_blocknr[i] = -1;
/* Read the first block and get the superblock from it */
memcpy(&super, cramfs_read(sb, 0, sizeof(super)), sizeof(super));
up(&read_mutex);
mutex_unlock(&read_mutex);
/* Do sanity checks on the superblock */
if (super.magic != CRAMFS_MAGIC) {
/* check at 512 byte offset */
down(&read_mutex);
mutex_lock(&read_mutex);
memcpy(&super, cramfs_read(sb, 512, sizeof(super)), sizeof(super));
up(&read_mutex);
mutex_unlock(&read_mutex);
if (super.magic != CRAMFS_MAGIC) {
if (!silent)
printk(KERN_ERR "cramfs: wrong magic\n");
@ -366,7 +367,7 @@ static int cramfs_readdir(struct file *filp, void *dirent, filldir_t filldir)
mode_t mode;
int namelen, error;
down(&read_mutex);
mutex_lock(&read_mutex);
de = cramfs_read(sb, OFFSET(inode) + offset, sizeof(*de)+256);
name = (char *)(de+1);
@ -379,7 +380,7 @@ static int cramfs_readdir(struct file *filp, void *dirent, filldir_t filldir)
memcpy(buf, name, namelen);
ino = CRAMINO(de);
mode = de->mode;
up(&read_mutex);
mutex_unlock(&read_mutex);
nextoffset = offset + sizeof(*de) + namelen;
for (;;) {
if (!namelen) {
@ -410,7 +411,7 @@ static struct dentry * cramfs_lookup(struct inode *dir, struct dentry *dentry, s
unsigned int offset = 0;
int sorted;
down(&read_mutex);
mutex_lock(&read_mutex);
sorted = CRAMFS_SB(dir->i_sb)->flags & CRAMFS_FLAG_SORTED_DIRS;
while (offset < dir->i_size) {
struct cramfs_inode *de;
@ -433,7 +434,7 @@ static struct dentry * cramfs_lookup(struct inode *dir, struct dentry *dentry, s
for (;;) {
if (!namelen) {
up(&read_mutex);
mutex_unlock(&read_mutex);
return ERR_PTR(-EIO);
}
if (name[namelen-1])
@ -447,7 +448,7 @@ static struct dentry * cramfs_lookup(struct inode *dir, struct dentry *dentry, s
continue;
if (!retval) {
struct cramfs_inode entry = *de;
up(&read_mutex);
mutex_unlock(&read_mutex);
d_add(dentry, get_cramfs_inode(dir->i_sb, &entry));
return NULL;
}
@ -455,7 +456,7 @@ static struct dentry * cramfs_lookup(struct inode *dir, struct dentry *dentry, s
if (sorted)
break;
}
up(&read_mutex);
mutex_unlock(&read_mutex);
d_add(dentry, NULL);
return NULL;
}
@ -474,21 +475,21 @@ static int cramfs_readpage(struct file *file, struct page * page)
u32 start_offset, compr_len;
start_offset = OFFSET(inode) + maxblock*4;
down(&read_mutex);
mutex_lock(&read_mutex);
if (page->index)
start_offset = *(u32 *) cramfs_read(sb, blkptr_offset-4, 4);
compr_len = (*(u32 *) cramfs_read(sb, blkptr_offset, 4) - start_offset);
up(&read_mutex);
mutex_unlock(&read_mutex);
pgdata = kmap(page);
if (compr_len == 0)
; /* hole */
else {
down(&read_mutex);
mutex_lock(&read_mutex);
bytes_filled = cramfs_uncompress_block(pgdata,
PAGE_CACHE_SIZE,
cramfs_read(sb, start_offset, compr_len),
compr_len);
up(&read_mutex);
mutex_unlock(&read_mutex);
}
} else
pgdata = kmap(page);