Messages in this thread Patch in this message | | | From | Greg Kroah-Hartman <> | Subject | [PATCH 5.15 083/230] gfs2: Fix gfs2_file_buffered_write endless loop workaround | Date | Mon, 11 Jul 2022 11:05:39 +0200 |
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From: Andreas Gruenbacher <agruenba@redhat.com>
[ Upstream commit 46f3e0421ccb5474b5c006b0089b9dfd42534bb6 ]
Since commit 554c577cee95b, gfs2_file_buffered_write() can accidentally return a truncated iov_iter, which might confuse callers. Fix that.
Fixes: 554c577cee95b ("gfs2: Prevent endless loops in gfs2_file_buffered_write") Signed-off-by: Andreas Gruenbacher <agruenba@redhat.com> Signed-off-by: Sasha Levin <sashal@kernel.org> --- fs/gfs2/file.c | 1 + 1 file changed, 1 insertion(+)
diff --git a/fs/gfs2/file.c b/fs/gfs2/file.c index 60390f9dc31f..e93185d804e0 100644 --- a/fs/gfs2/file.c +++ b/fs/gfs2/file.c @@ -1086,6 +1086,7 @@ static ssize_t gfs2_file_buffered_write(struct kiocb *iocb, gfs2_holder_uninit(gh); if (statfs_gh) kfree(statfs_gh); + from->count = orig_count - read; return read ? read : ret; } -- 2.35.1
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