The patch titled
reiserfs: add missing D-cache flushing
has been added to the -mm tree. Its filename is
reiserfs-add-missing-d-cache-flushing.patch
See http://www.zip.com.au/~akpm/linux/patches/stuff/added-to-mm.txt to find
out what to do about this
------------------------------------------------------
Subject: reiserfs: add missing D-cache flushing
From: Alexey Dobriyan <adobriyan@xxxxxxxxxx>
Looks like, reiserfs_prepare_file_region_for_write() doesn't contain
several flush_dcache_page() calls.
Found with help from Dmitriy Monakhov <dmonakhov@xxxxxxxxxx>
Signed-off-by: Alexey Dobriyan <adobriyan@xxxxxxxxxx>
Cc: Dmitriy Monakhov <dmonakhov@xxxxxxxxxx>
Signed-off-by: Andrew Morton <akpm@xxxxxxxx>
---
fs/reiserfs/file.c | 4 ++++
1 files changed, 4 insertions(+)
diff -puN fs/reiserfs/file.c~reiserfs-add-missing-d-cache-flushing fs/reiserfs/file.c
--- a/fs/reiserfs/file.c~reiserfs-add-missing-d-cache-flushing
+++ a/fs/reiserfs/file.c
@@ -1043,6 +1043,7 @@ static int reiserfs_prepare_file_region_
if (from != 0) { /* First page needs to be partially zeroed */
char *kaddr = kmap_atomic(prepared_pages[0], KM_USER0);
memset(kaddr, 0, from);
+ flush_dcache_page(prepared_pages[0]);
kunmap_atomic(kaddr, KM_USER0);
}
if (to != PAGE_CACHE_SIZE) { /* Last page needs to be partially zeroed */
@@ -1050,6 +1051,7 @@ static int reiserfs_prepare_file_region_
kmap_atomic(prepared_pages[num_pages - 1],
KM_USER0);
memset(kaddr + to, 0, PAGE_CACHE_SIZE - to);
+ flush_dcache_page(prepared_pages[num_pages - 1]);
kunmap_atomic(kaddr, KM_USER0);
}
@@ -1183,6 +1185,7 @@ static int reiserfs_prepare_file_region_
KM_USER0);
memset(kaddr + block_start, 0,
from - block_start);
+ flush_dcache_page(prepared_pages[0]);
kunmap_atomic(kaddr, KM_USER0);
set_buffer_uptodate(bh);
}
@@ -1220,6 +1223,7 @@ static int reiserfs_prepare_file_region_
[num_pages - 1],
KM_USER0);
memset(kaddr + to, 0, block_end - to);
+ flush_dcache_page(prepared_pages[num_pages - 1]);
kunmap_atomic(kaddr, KM_USER0);
set_buffer_uptodate(bh);
}
_
Patches currently in -mm which might be from adobriyan@xxxxxxxxxx are
origin.patch
reiserfs-add-missing-d-cache-flushing.patch
reiserfs-add-missing-d-cache-flushing-tweak.patch
-
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