[PATCH] reiserfs: add missing D-cache flushing
authorAlexey Dobriyan <adobriyan@openvz.org>
Thu, 7 Dec 2006 04:38:02 +0000 (20:38 -0800)
committerLinus Torvalds <torvalds@woody.osdl.org>
Thu, 7 Dec 2006 16:39:38 +0000 (08:39 -0800)
Looks like, reiserfs_prepare_file_region_for_write() doesn't contain
several flush_dcache_page() calls.

Found with help from Dmitriy Monakhov <dmonakhov@openvz.org>

[akpm@osdl.org: small speedup]
Signed-off-by: Alexey Dobriyan <adobriyan@openvz.org>
Cc: Dmitriy Monakhov <dmonakhov@openvz.org>
Signed-off-by: Andrew Morton <akpm@osdl.org>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>
fs/reiserfs/file.c

index ac14318c81ba71eaf944e120c26f4b9630d16b0e..6526498949d839decfee29ecd56a957a59d03b35 100644 (file)
@@ -1045,6 +1045,7 @@ static int reiserfs_prepare_file_region_for_write(struct inode *inode
                        char *kaddr = kmap_atomic(prepared_pages[0], KM_USER0);
                        memset(kaddr, 0, from);
                        kunmap_atomic(kaddr, KM_USER0);
+                       flush_dcache_page(prepared_pages[0]);
                }
                if (to != PAGE_CACHE_SIZE) {    /* Last page needs to be partially zeroed */
                        char *kaddr =
@@ -1052,6 +1053,7 @@ static int reiserfs_prepare_file_region_for_write(struct inode *inode
                                        KM_USER0);
                        memset(kaddr + to, 0, PAGE_CACHE_SIZE - to);
                        kunmap_atomic(kaddr, KM_USER0);
+                       flush_dcache_page(prepared_pages[num_pages - 1]);
                }
 
                /* Since all blocks are new - use already calculated value */
@@ -1185,6 +1187,7 @@ static int reiserfs_prepare_file_region_for_write(struct inode *inode
                                        memset(kaddr + block_start, 0,
                                               from - block_start);
                                        kunmap_atomic(kaddr, KM_USER0);
+                                       flush_dcache_page(prepared_pages[0]);
                                        set_buffer_uptodate(bh);
                                }
                        }
@@ -1222,6 +1225,7 @@ static int reiserfs_prepare_file_region_for_write(struct inode *inode
                                                        KM_USER0);
                                        memset(kaddr + to, 0, block_end - to);
                                        kunmap_atomic(kaddr, KM_USER0);
+                                       flush_dcache_page(prepared_pages[num_pages - 1]);
                                        set_buffer_uptodate(bh);
                                }
                        }