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-rw-r--r--mm/shmem.c34
1 files changed, 11 insertions, 23 deletions
diff --git a/mm/shmem.c b/mm/shmem.c
index 1e43c8a..db21c51 100644
--- a/mm/shmem.c
+++ b/mm/shmem.c
@@ -23,10 +23,8 @@
* which makes it a completely usable filesystem.
*/
-#include <linux/config.h>
#include <linux/module.h>
#include <linux/init.h>
-#include <linux/devfs_fs_kernel.h>
#include <linux/fs.h>
#include <linux/mm.h>
#include <linux/mman.h>
@@ -174,7 +172,7 @@ static inline void shmem_unacct_blocks(unsigned long flags, long pages)
}
static struct super_operations shmem_ops;
-static struct address_space_operations shmem_aops;
+static const struct address_space_operations shmem_aops;
static struct file_operations shmem_file_operations;
static struct inode_operations shmem_inode_operations;
static struct inode_operations shmem_dir_inode_operations;
@@ -1046,12 +1044,12 @@ repeat:
swappage = lookup_swap_cache(swap);
if (!swappage) {
shmem_swp_unmap(entry);
- spin_unlock(&info->lock);
/* here we actually do the io */
if (type && *type == VM_FAULT_MINOR) {
- inc_page_state(pgmajfault);
+ __count_vm_event(PGMAJFAULT);
*type = VM_FAULT_MAJOR;
}
+ spin_unlock(&info->lock);
swappage = shmem_swapin(info, swap, idx);
if (!swappage) {
spin_lock(&info->lock);
@@ -1081,14 +1079,6 @@ repeat:
page_cache_release(swappage);
goto repeat;
}
- if (!PageSwapCache(swappage)) {
- /* Page migration has occured */
- shmem_swp_unmap(entry);
- spin_unlock(&info->lock);
- unlock_page(swappage);
- page_cache_release(swappage);
- goto repeat;
- }
if (PageWriteback(swappage)) {
shmem_swp_unmap(entry);
spin_unlock(&info->lock);
@@ -1654,9 +1644,9 @@ static ssize_t shmem_file_sendfile(struct file *in_file, loff_t *ppos,
return desc.error;
}
-static int shmem_statfs(struct super_block *sb, struct kstatfs *buf)
+static int shmem_statfs(struct dentry *dentry, struct kstatfs *buf)
{
- struct shmem_sb_info *sbinfo = SHMEM_SB(sb);
+ struct shmem_sb_info *sbinfo = SHMEM_SB(dentry->d_sb);
buf->f_type = TMPFS_MAGIC;
buf->f_bsize = PAGE_CACHE_SIZE;
@@ -2170,7 +2160,7 @@ static void destroy_inodecache(void)
printk(KERN_INFO "shmem_inode_cache: not all structures were freed\n");
}
-static struct address_space_operations shmem_aops = {
+static const struct address_space_operations shmem_aops = {
.writepage = shmem_writepage,
.set_page_dirty = __set_page_dirty_nobuffers,
#ifdef CONFIG_TMPFS
@@ -2233,10 +2223,10 @@ static struct vm_operations_struct shmem_vm_ops = {
};
-static struct super_block *shmem_get_sb(struct file_system_type *fs_type,
- int flags, const char *dev_name, void *data)
+static int shmem_get_sb(struct file_system_type *fs_type,
+ int flags, const char *dev_name, void *data, struct vfsmount *mnt)
{
- return get_sb_nodev(fs_type, flags, data, shmem_fill_super);
+ return get_sb_nodev(fs_type, flags, data, shmem_fill_super, mnt);
}
static struct file_system_type tmpfs_fs_type = {
@@ -2260,10 +2250,8 @@ static int __init init_tmpfs(void)
printk(KERN_ERR "Could not register tmpfs\n");
goto out2;
}
-#ifdef CONFIG_TMPFS
- devfs_mk_dir("shm");
-#endif
- shm_mnt = do_kern_mount(tmpfs_fs_type.name, MS_NOUSER,
+
+ shm_mnt = vfs_kern_mount(&tmpfs_fs_type, MS_NOUSER,
tmpfs_fs_type.name, NULL);
if (IS_ERR(shm_mnt)) {
error = PTR_ERR(shm_mnt);
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