diff options
| -rw-r--r-- | fs/ufs/dir.c | 55 | ||||
| -rw-r--r-- | fs/ufs/inode.c | 23 | ||||
| -rw-r--r-- | fs/ufs/util.h | 3 |
3 files changed, 58 insertions, 23 deletions
diff --git a/fs/ufs/dir.c b/fs/ufs/dir.c index 154452172f4..2410ec6002d 100644 --- a/fs/ufs/dir.c +++ b/fs/ufs/dir.c @@ -19,6 +19,7 @@ #include <linux/time.h> #include <linux/fs.h> #include <linux/ufs_fs.h> +#include <linux/swap.h> #include "swab.h" #include "util.h" @@ -38,12 +39,18 @@ static inline int ufs_match(struct super_block *sb, int len, return !memcmp(name, de->d_name, len); } -static int ufs_commit_chunk(struct page *page, unsigned from, unsigned to) +static int ufs_commit_chunk(struct page *page, loff_t pos, unsigned len) { - struct inode *dir = page->mapping->host; + struct address_space *mapping = page->mapping; + struct inode *dir = mapping->host; int err = 0; + dir->i_version++; - 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 @@ -81,16 +88,20 @@ ino_t ufs_inode_by_name(struct inode *dir, struct dentry *dentry) void ufs_set_link(struct inode *dir, struct ufs_dir_entry *de, struct page *page, struct inode *inode) { - unsigned from = (char *) de - (char *) page_address(page); - unsigned to = from + fs16_to_cpu(dir->i_sb, de->d_reclen); + loff_t pos = page_offset(page) + + (char *) de - (char *) page_address(page); + unsigned len = fs16_to_cpu(dir->i_sb, de->d_reclen); int err; lock_page(page); - err = page->mapping->a_ops->prepare_write(NULL, page, from, to); + err = __ufs_write_begin(NULL, page->mapping, pos, len, + AOP_FLAG_UNINTERRUPTIBLE, &page, NULL); BUG_ON(err); + de->d_ino = cpu_to_fs32(dir->i_sb, inode->i_ino); ufs_set_de_type(dir->i_sb, de, inode->i_mode); - err = ufs_commit_chunk(page, from, to); + + err = ufs_commit_chunk(page, pos, len); ufs_put_page(page); dir->i_mtime = dir->i_ctime = CURRENT_TIME_SEC; mark_inode_dirty(dir); @@ -312,7 +323,7 @@ int ufs_add_link(struct dentry *dentry, struct inode *inode) unsigned long npages = ufs_dir_pages(dir); unsigned long n; char *kaddr; - unsigned from, to; + loff_t pos; int err; UFSD("ENTER, name %s, namelen %u\n", name, namelen); @@ -367,9 +378,10 @@ int ufs_add_link(struct dentry *dentry, struct inode *inode) return -EINVAL; got_it: - from = (char*)de - (char*)page_address(page); - to = from + rec_len; - err = page->mapping->a_ops->prepare_write(NULL, page, from, to); + pos = page_offset(page) + + (char*)de - (char*)page_address(page); + err = __ufs_write_begin(NULL, page->mapping, pos, rec_len, + AOP_FLAG_UNINTERRUPTIBLE, &page, NULL); if (err) goto out_unlock; if (de->d_ino) { @@ -386,7 +398,7 @@ got_it: de->d_ino = cpu_to_fs32(sb, inode->i_ino); ufs_set_de_type(sb, de, inode->i_mode); - err = ufs_commit_chunk(page, from, to); + err = ufs_commit_chunk(page, pos, rec_len); dir->i_mtime = dir->i_ctime = CURRENT_TIME_SEC; mark_inode_dirty(dir); @@ -509,6 +521,7 @@ int ufs_delete_entry(struct inode *inode, struct ufs_dir_entry *dir, char *kaddr = page_address(page); unsigned from = ((char*)dir - kaddr) & ~(UFS_SB(sb)->s_uspi->s_dirblksize - 1); unsigned to = ((char*)dir - kaddr) + fs16_to_cpu(sb, dir->d_reclen); + loff_t pos; struct ufs_dir_entry *pde = NULL; struct ufs_dir_entry *de = (struct ufs_dir_entry *) (kaddr + from); int err; @@ -532,13 +545,16 @@ int ufs_delete_entry(struct inode *inode, struct ufs_dir_entry *dir, } if (pde) from = (char*)pde - (char*)page_address(page); + + pos = page_offset(page) + from; lock_page(page); - err = mapping->a_ops->prepare_write(NULL, page, from, to); + err = __ufs_write_begin(NULL, mapping, pos, to - from, + AOP_FLAG_UNINTERRUPTIBLE, &page, NULL); BUG_ON(err); if (pde) - pde->d_reclen = cpu_to_fs16(sb, to-from); + pde->d_reclen = cpu_to_fs16(sb, to - from); dir->d_ino = 0; - err = ufs_commit_chunk(page, from, to); + err = ufs_commit_chunk(page, pos, to - from); inode->i_ctime = inode->i_mtime = CURRENT_TIME_SEC; mark_inode_dirty(inode); out: @@ -559,14 +575,15 @@ int ufs_make_empty(struct inode * inode, struct inode *dir) if (!page) return -ENOMEM; - kmap(page); - err = mapping->a_ops->prepare_write(NULL, page, 0, chunk_size); + + err = __ufs_write_begin(NULL, mapping, 0, chunk_size, + 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); @@ -584,10 +601,10 @@ int ufs_make_empty(struct inode * inode, struct inode *dir) de->d_reclen = cpu_to_fs16(sb, chunk_size - UFS_DIR_REC_LEN(1)); ufs_set_de_namlen(sb, de, 2); strcpy (de->d_name, ".."); + kunmap(page); err = ufs_commit_chunk(page, 0, chunk_size); fail: - kunmap(page); page_cache_release(page); return err; } diff --git a/fs/ufs/inode.c b/fs/ufs/inode.c index f18b79122fa..d84d4b0f477 100644 --- a/fs/ufs/inode.c +++ b/fs/ufs/inode.c @@ -558,24 +558,39 @@ static int ufs_writepage(struct page *page, struct writeback_control *wbc) { return block_write_full_page(page,ufs_getfrag_block,wbc); } + static int ufs_readpage(struct file *file, struct page *page) { return block_read_full_page(page,ufs_getfrag_block); } -static int ufs_prepare_write(struct file *file, struct page *page, unsigned from, unsigned to) + +int __ufs_write_begin(struct file *file, struct address_space *mapping, + loff_t pos, unsigned len, unsigned flags, + struct page **pagep, void **fsdata) { - return block_prepare_write(page,from,to,ufs_getfrag_block); + return block_write_begin(file, mapping, pos, len, flags, pagep, fsdata, + ufs_getfrag_block); } + +static int ufs_write_begin(struct file *file, struct address_space *mapping, + loff_t pos, unsigned len, unsigned flags, + struct page **pagep, void **fsdata) +{ + *pagep = NULL; + return __ufs_write_begin(file, mapping, pos, len, flags, pagep, fsdata); +} + static sector_t ufs_bmap(struct address_space *mapping, sector_t block) { return generic_block_bmap(mapping,block,ufs_getfrag_block); } + const struct address_space_operations ufs_aops = { .readpage = ufs_readpage, .writepage = ufs_writepage, .sync_page = block_sync_page, - .prepare_write = ufs_prepare_write, - .commit_write = generic_commit_write, + .write_begin = ufs_write_begin, + .write_end = generic_write_end, .bmap = ufs_bmap }; diff --git a/fs/ufs/util.h b/fs/ufs/util.h index 06d344839c4..79a340a1909 100644 --- a/fs/ufs/util.h +++ b/fs/ufs/util.h @@ -231,6 +231,9 @@ ufs_set_inode_gid(struct super_block *sb, struct ufs_inode *inode, u32 value) extern dev_t ufs_get_inode_dev(struct super_block *, struct ufs_inode_info *); extern void ufs_set_inode_dev(struct super_block *, struct ufs_inode_info *, dev_t); +extern int __ufs_write_begin(struct file *file, struct address_space *mapping, + loff_t pos, unsigned len, unsigned flags, + struct page **pagep, void **fsdata); /* * These functions manipulate ufs buffers |