hostfs: Set page flags in hostfs_readpage() correctly
In case of an error set the page error flag and clear the up-to-date
flag.
If the read was successful clear the error flag unconditionally.
Signed-off-by: Richard Weinberger <richard@nod.at>
diff --git a/fs/hostfs/hostfs_kern.c b/fs/hostfs/hostfs_kern.c
index cf80a30..f154747 100644
--- a/fs/hostfs/hostfs_kern.c
+++ b/fs/hostfs/hostfs_kern.c
@@ -445,24 +445,26 @@
{
char *buffer;
long long start;
- int bytes_read, ret;
+ int bytes_read, ret = 0;
start = (long long) page->index << PAGE_CACHE_SHIFT;
buffer = kmap(page);
bytes_read = read_file(FILE_HOSTFS_I(file)->fd, &start, buffer,
PAGE_CACHE_SIZE);
if (bytes_read < 0) {
+ ClearPageUptodate(page);
+ SetPageError(page);
ret = bytes_read;
goto out;
}
memset(buffer + bytes_read, 0, PAGE_CACHE_SIZE - bytes_read);
- flush_dcache_page(page);
+ ClearPageError(page);
SetPageUptodate(page);
- if (PageError(page)) ClearPageError(page);
- ret = 0;
+
out:
+ flush_dcache_page(page);
kunmap(page);
unlock_page(page);
return ret;