Messages in this thread Patch in this message | | | Date | Mon, 10 Sep 2007 18:55:15 +0900 | From | KAMEZAWA Hiroyuki <> | Subject | [PATCH] add page->mapping handling interface [9/35] changes in ECRYPTFS |
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Change page->mapping handling in ecryptfs
Signed-off-by: KAMEZAWA Hiroyuki <kamezawa.hiroyu@jp.fujitsu.com>
--- fs/ecryptfs/crypto.c | 9 ++++----- fs/ecryptfs/mmap.c | 14 +++++++------- 2 files changed, 11 insertions(+), 12 deletions(-)
Index: test-2.6.23-rc4-mm1/fs/ecryptfs/crypto.c =================================================================== --- test-2.6.23-rc4-mm1.orig/fs/ecryptfs/crypto.c +++ test-2.6.23-rc4-mm1/fs/ecryptfs/crypto.c @@ -504,8 +504,8 @@ int ecryptfs_encrypt_page(struct ecryptf #define ECRYPTFS_PAGE_STATE_WRITTEN 3 int page_state; - lower_inode = ecryptfs_inode_to_lower(ctx->page->mapping->host); - inode_info = ecryptfs_inode_to_private(ctx->page->mapping->host); + lower_inode = ecryptfs_inode_to_lower(page_inode(ctx->page)); + inode_info = ecryptfs_inode_to_private(page_inode(ctx->page)); crypt_stat = &inode_info->crypt_stat; if (!(crypt_stat->flags & ECRYPTFS_ENCRYPTED)) { rc = ecryptfs_copy_page_to_lower(ctx->page, lower_inode, @@ -636,9 +636,8 @@ int ecryptfs_decrypt_page(struct file *f int num_extents_per_page; int page_state; - crypt_stat = &(ecryptfs_inode_to_private( - page->mapping->host)->crypt_stat); - lower_inode = ecryptfs_inode_to_lower(page->mapping->host); + crypt_stat = &(ecryptfs_inode_to_private(page_inode(page))->crypt_stat); + lower_inode = ecryptfs_inode_to_lower(page_inode(page)); if (!(crypt_stat->flags & ECRYPTFS_ENCRYPTED)) { rc = ecryptfs_do_readpage(file, page, page->index); if (rc) Index: test-2.6.23-rc4-mm1/fs/ecryptfs/mmap.c =================================================================== --- test-2.6.23-rc4-mm1.orig/fs/ecryptfs/mmap.c +++ test-2.6.23-rc4-mm1/fs/ecryptfs/mmap.c @@ -363,7 +363,7 @@ out: */ static int fill_zeros_to_end_of_page(struct page *page, unsigned int to) { - struct inode *inode = page->mapping->host; + struct inode *inode = page_inode(page); int end_byte_in_page; if ((i_size_read(inode) / PAGE_CACHE_SIZE) != page->index) @@ -411,7 +411,7 @@ static int ecryptfs_prepare_write(struct if (page->index != 0) { loff_t end_of_prev_pg_pos = page_offset(page) - 1; - if (end_of_prev_pg_pos > i_size_read(page->mapping->host)) { + if (end_of_prev_pg_pos > i_size_read(page_inode(page))) { rc = ecryptfs_truncate(file->f_path.dentry, end_of_prev_pg_pos); if (rc) { @@ -421,7 +421,7 @@ static int ecryptfs_prepare_write(struct goto out; } } - if (end_of_prev_pg_pos + 1 > i_size_read(page->mapping->host)) + if (end_of_prev_pg_pos + 1 > i_size_read(page_inode(page))) zero_user_page(page, 0, PAGE_CACHE_SIZE, KM_USER0); } out: @@ -683,7 +683,7 @@ static int ecryptfs_commit_write(struct struct ecryptfs_crypt_stat *crypt_stat; int rc; - inode = page->mapping->host; + inode = page_inode(page); lower_inode = ecryptfs_inode_to_lower(inode); lower_file = ecryptfs_file_to_lower(file); mutex_lock(&lower_inode->i_mutex); @@ -805,7 +805,7 @@ static void ecryptfs_sync_page(struct pa struct inode *lower_inode; struct page *lower_page; - inode = page->mapping->host; + inode = page_inode(page); lower_inode = ecryptfs_inode_to_lower(inode); /* NOTE: Recently swapped with grab_cache_page(), since * sync_page() just makes sure that pending I/O gets done. */ @@ -814,8 +814,8 @@ static void ecryptfs_sync_page(struct pa ecryptfs_printk(KERN_DEBUG, "find_lock_page failed\n"); return; } - if (lower_page->mapping->a_ops->sync_page) - lower_page->mapping->a_ops->sync_page(lower_page); + if (page_mapping_cache(lower_page)->a_ops->sync_page) + page_mapping_cache(lower_page)->a_ops->sync_page(lower_page); ecryptfs_printk(KERN_DEBUG, "Unlocking page with index = [0x%.16x]\n", lower_page->index); unlock_page(lower_page); - To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to majordomo@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/
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