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 <rich...@nod.at> --- fs/hostfs/hostfs_kern.c | 10 ++++++---- 1 file changed, 6 insertions(+), 4 deletions(-) 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 @@ static int hostfs_readpage(struct file *file, struct page *page) { 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; -- 2.3.2 ------------------------------------------------------------------------------ Dive into the World of Parallel Programming The Go Parallel Website, sponsored by Intel and developed in partnership with Slashdot Media, is your hub for all things parallel software development, from weekly thought leadership blogs to news, videos, case studies, tutorials and more. Take a look and join the conversation now. http://goparallel.sourceforge.net/ _______________________________________________ User-mode-linux-devel mailing list User-mode-linux-devel@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/user-mode-linux-devel