Commit de21c57b authored by Alexey Dobriyan's avatar Alexey Dobriyan Committed by Linus Torvalds
Browse files

[PATCH] reiserfs: add missing D-cache flushing



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: default avatarAlexey Dobriyan <adobriyan@openvz.org>
Cc: Dmitriy Monakhov <dmonakhov@openvz.org>
Signed-off-by: default avatarAndrew Morton <akpm@osdl.org>
Signed-off-by: default avatarLinus Torvalds <torvalds@osdl.org>
parent 36027604
......@@ -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);
}
}
......
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