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author | Nick Piggin <npiggin@suse.de> | 2007-10-16 01:25:20 -0700 |
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committer | Linus Torvalds <torvalds@woody.linux-foundation.org> | 2007-10-16 09:42:57 -0700 |
commit | be021ee41a8b65d181fe22799de6be62adf72efb (patch) | |
tree | d02e79ac30c6b03ea361bc425a566a402a8db0c0 /fs | |
parent | 82b9d1d0da8046088b0f505f92a97d12d9804613 (diff) | |
download | linux-stable-be021ee41a8b65d181fe22799de6be62adf72efb.tar.gz linux-stable-be021ee41a8b65d181fe22799de6be62adf72efb.tar.bz2 linux-stable-be021ee41a8b65d181fe22799de6be62adf72efb.zip |
udf: convert to new aops
Convert udf to new aops. Also seem to have fixed pagecache corruption in
udf_adinicb_commit_write -- page was marked uptodate when it is not. Also,
fixed the silly setup where prepare_write was doing a kmap to be used in
commit_write: just do kmap_atomic in write_end. Use libfs helpers to make
this easier.
Signed-off-by: Nick Piggin <npiggin@suse.de>
Cc: <bfennema@falcon.csc.calpoly.edu>
Cc: Jan Kara <jack@ucw.cz>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Diffstat (limited to 'fs')
-rw-r--r-- | fs/udf/file.c | 35 | ||||
-rw-r--r-- | fs/udf/inode.c | 13 |
2 files changed, 22 insertions, 26 deletions
diff --git a/fs/udf/file.c b/fs/udf/file.c index 5d7a4ea27753..7c7a1b39d56c 100644 --- a/fs/udf/file.c +++ b/fs/udf/file.c @@ -76,36 +76,29 @@ static int udf_adinicb_writepage(struct page *page, struct writeback_control *wb return 0; } -static int udf_adinicb_prepare_write(struct file *file, struct page *page, - unsigned offset, unsigned to) +static int udf_adinicb_write_end(struct file *file, + struct address_space *mapping, + loff_t pos, unsigned len, unsigned copied, + struct page *page, void *fsdata) { - kmap(page); - return 0; -} - -static int udf_adinicb_commit_write(struct file *file, struct page *page, - unsigned offset, unsigned to) -{ - struct inode *inode = page->mapping->host; - char *kaddr = page_address(page); + struct inode *inode = mapping->host; + unsigned offset = pos & (PAGE_CACHE_SIZE - 1); + char *kaddr; + kaddr = kmap_atomic(page, KM_USER0); memcpy(UDF_I_DATA(inode) + UDF_I_LENEATTR(inode) + offset, - kaddr + offset, to - offset); - mark_inode_dirty(inode); - SetPageUptodate(page); - kunmap(page); - /* only one page here */ - if (to > inode->i_size) - inode->i_size = to; - return 0; + kaddr + offset, copied); + kunmap_atomic(kaddr, KM_USER0); + + return simple_write_end(file, mapping, pos, len, copied, page, fsdata); } const struct address_space_operations udf_adinicb_aops = { .readpage = udf_adinicb_readpage, .writepage = udf_adinicb_writepage, .sync_page = block_sync_page, - .prepare_write = udf_adinicb_prepare_write, - .commit_write = udf_adinicb_commit_write, + .write_begin = simple_write_begin, + .write_end = udf_adinicb_write_end, }; static ssize_t udf_file_aio_write(struct kiocb *iocb, const struct iovec *iov, diff --git a/fs/udf/inode.c b/fs/udf/inode.c index 1652b2c665bb..6ff8151984cf 100644 --- a/fs/udf/inode.c +++ b/fs/udf/inode.c @@ -133,10 +133,13 @@ static int udf_readpage(struct file *file, struct page *page) return block_read_full_page(page, udf_get_block); } -static int udf_prepare_write(struct file *file, struct page *page, - unsigned from, unsigned to) +static int udf_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, udf_get_block); + *pagep = NULL; + return block_write_begin(file, mapping, pos, len, flags, pagep, fsdata, + udf_get_block); } static sector_t udf_bmap(struct address_space *mapping, sector_t block) @@ -148,8 +151,8 @@ const struct address_space_operations udf_aops = { .readpage = udf_readpage, .writepage = udf_writepage, .sync_page = block_sync_page, - .prepare_write = udf_prepare_write, - .commit_write = generic_commit_write, + .write_begin = udf_write_begin, + .write_end = generic_write_end, .bmap = udf_bmap, }; |