remove ->write_super call in generic_shutdown_super

[safe/jmp/linux-2.6] / fs / sysv / dir.c

diff --git a/fs/sysv/dir.c b/fs/sysv/dir.c
index f2bef96..56f6552 100644 (file)
--- a/fs/sysv/dir.c
+++ b/fs/sysv/dir.c
@@ -16,6 +16,7 @@
 #include <linux/pagemap.h>
 #include <linux/highmem.h>
 #include <linux/smp_lock.h>
+#include <linux/swap.h>
 #include "sysv.h"
 
 static int sysv_readdir(struct file *, void *, filldir_t);
@@ -37,12 +38,17 @@ static inline unsigned long dir_pages(struct inode *inode)
        return (inode->i_size+PAGE_CACHE_SIZE-1)>>PAGE_CACHE_SHIFT;
 }
 
-static int dir_commit_chunk(struct page *page, unsigned from, unsigned to)
+static int dir_commit_chunk(struct page *page, loff_t pos, unsigned len)
 {
-       struct inode *dir = (struct inode *)page->mapping->host;
+       struct address_space *mapping = page->mapping;
+       struct inode *dir = mapping->host;
        int err = 0;
 
-       page->mapping->a_ops->commit_write(NULL, page, from, to);
+       block_write_end(NULL, mapping, pos, len, len, page, NULL);
+       if (pos+len > dir->i_size) {
+               i_size_write(dir, pos+len);
+               mark_inode_dirty(dir);
+       }
        if (IS_DIRSYNC(dir))
                err = write_one_page(page, 1);
        else
@@ -54,23 +60,15 @@ static struct page * dir_get_page(struct inode *dir, unsigned long n)
 {
        struct address_space *mapping = dir->i_mapping;
        struct page *page = read_mapping_page(mapping, n, NULL);
-       if (!IS_ERR(page)) {
-               wait_on_page_locked(page);
+       if (!IS_ERR(page))
                kmap(page);
-               if (!PageUptodate(page))
-                       goto fail;
-       }
        return page;
-
-fail:
-       dir_put_page(page);
-       return ERR_PTR(-EIO);
 }
 
 static int sysv_readdir(struct file * filp, void * dirent, filldir_t filldir)
 {
        unsigned long pos = filp->f_pos;
-       struct inode *inode = filp->f_dentry->d_inode;
+       struct inode *inode = filp->f_path.dentry->d_inode;
        struct super_block *sb = inode->i_sb;
        unsigned offset = pos & ~PAGE_CACHE_MASK;
        unsigned long n = pos >> PAGE_CACHE_SHIFT;
@@ -194,7 +192,7 @@ int sysv_add_link(struct dentry *dentry, struct inode *inode)
        unsigned long npages = dir_pages(dir);
        unsigned long n;
        char *kaddr;
-       unsigned from, to;
+       loff_t pos;
        int err;
 
        /* We take care of directory expansion in the same loop */
@@ -220,16 +218,17 @@ int sysv_add_link(struct dentry *dentry, struct inode *inode)
        return -EINVAL;
 
 got_it:
-       from = (char*)de - (char*)page_address(page);
-       to = from + SYSV_DIRSIZE;
+       pos = page_offset(page) +
+                       (char*)de - (char*)page_address(page);
        lock_page(page);
-       err = page->mapping->a_ops->prepare_write(NULL, page, from, to);
+       err = __sysv_write_begin(NULL, page->mapping, pos, SYSV_DIRSIZE,
+                               AOP_FLAG_UNINTERRUPTIBLE, &page, NULL);
        if (err)
                goto out_unlock;
        memcpy (de->name, name, namelen);
        memset (de->name + namelen, 0, SYSV_DIRSIZE - namelen - 2);
        de->inode = cpu_to_fs16(SYSV_SB(inode->i_sb), inode->i_ino);
-       err = dir_commit_chunk(page, from, to);
+       err = dir_commit_chunk(page, pos, SYSV_DIRSIZE);
        dir->i_mtime = dir->i_ctime = CURRENT_TIME_SEC;
        mark_inode_dirty(dir);
 out_page:
@@ -246,15 +245,15 @@ int sysv_delete_entry(struct sysv_dir_entry *de, struct page *page)
        struct address_space *mapping = page->mapping;
        struct inode *inode = (struct inode*)mapping->host;
        char *kaddr = (char*)page_address(page);
-       unsigned from = (char*)de - kaddr;
-       unsigned to = from + SYSV_DIRSIZE;
+       loff_t pos = page_offset(page) + (char *)de - kaddr;
        int err;
 
        lock_page(page);
-       err = mapping->a_ops->prepare_write(NULL, page, from, to);
+       err = __sysv_write_begin(NULL, mapping, pos, SYSV_DIRSIZE,
+                               AOP_FLAG_UNINTERRUPTIBLE, &page, NULL);
        BUG_ON(err);
        de->inode = 0;
-       err = dir_commit_chunk(page, from, to);
+       err = dir_commit_chunk(page, pos, SYSV_DIRSIZE);
        dir_put_page(page);
        inode->i_ctime = inode->i_mtime = CURRENT_TIME_SEC;
        mark_inode_dirty(inode);
@@ -271,12 +270,13 @@ int sysv_make_empty(struct inode *inode, struct inode *dir)
 
        if (!page)
                return -ENOMEM;
-       kmap(page);
-       err = mapping->a_ops->prepare_write(NULL, page, 0, 2 * SYSV_DIRSIZE);
+       err = __sysv_write_begin(NULL, mapping, 0, 2 * SYSV_DIRSIZE,
+                               AOP_FLAG_UNINTERRUPTIBLE, &page, NULL);
        if (err) {
                unlock_page(page);
                goto fail;
        }
+       kmap(page);
 
        base = (char*)page_address(page);
        memset(base, 0, PAGE_CACHE_SIZE);
@@ -288,9 +288,9 @@ int sysv_make_empty(struct inode *inode, struct inode *dir)
        de->inode = cpu_to_fs16(SYSV_SB(inode->i_sb), dir->i_ino);
        strcpy(de->name,"..");
 
+       kunmap(page);
        err = dir_commit_chunk(page, 0, 2 * SYSV_DIRSIZE);
 fail:
-       kunmap(page);
        page_cache_release(page);
        return err;
 }
@@ -344,16 +344,18 @@ not_empty:
 void sysv_set_link(struct sysv_dir_entry *de, struct page *page,
        struct inode *inode)
 {
-       struct inode *dir = (struct inode*)page->mapping->host;
-       unsigned from = (char *)de-(char*)page_address(page);
-       unsigned to = from + SYSV_DIRSIZE;
+       struct address_space *mapping = page->mapping;
+       struct inode *dir = mapping->host;
+       loff_t pos = page_offset(page) +
+                       (char *)de-(char*)page_address(page);
        int err;
 
        lock_page(page);
-       err = page->mapping->a_ops->prepare_write(NULL, page, from, to);
+       err = __sysv_write_begin(NULL, mapping, pos, SYSV_DIRSIZE,
+                               AOP_FLAG_UNINTERRUPTIBLE, &page, NULL);
        BUG_ON(err);
        de->inode = cpu_to_fs16(SYSV_SB(inode->i_sb), inode->i_ino);
-       err = dir_commit_chunk(page, from, to);
+       err = dir_commit_chunk(page, pos, SYSV_DIRSIZE);
        dir_put_page(page);
        dir->i_mtime = dir->i_ctime = CURRENT_TIME_SEC;
        mark_inode_dirty(dir);