From: Trond Myklebust Date: Thu, 15 Dec 2011 23:38:10 +0000 (-0500) Subject: NFS: Fix a regression in nfs_file_llseek() X-Git-Tag: v3.1.8~56 X-Git-Url: http://git.ipfire.org/cgi-bin/gitweb.cgi?a=commitdiff_plain;h=4030564c1503d782139279e6741c819acbb0fb8f;p=thirdparty%2Fkernel%2Fstable.git NFS: Fix a regression in nfs_file_llseek() commit 6c52961743f38747401b47127b82159ab6d8a7a4 upstream. After commit 06222e491e663dac939f04b125c9dc52126a75c4 (fs: handle SEEK_HOLE/SEEK_DATA properly in all fs's that define their own llseek) the behaviour of llseek() was changed so that it always revalidates the file size. The bug appears to be due to a logic error in the afore-mentioned commit, which always evaluates to 'true'. Reported-by: Roel Kluin Signed-off-by: Trond Myklebust Signed-off-by: Greg Kroah-Hartman --- diff --git a/fs/nfs/file.c b/fs/nfs/file.c index 5b3d9842c408c..babaf3a4d99cc 100644 --- a/fs/nfs/file.c +++ b/fs/nfs/file.c @@ -191,7 +191,7 @@ static loff_t nfs_file_llseek(struct file *filp, loff_t offset, int origin) * origin == SEEK_END || SEEK_DATA || SEEK_HOLE => we must revalidate * the cached file length */ - if (origin != SEEK_SET || origin != SEEK_CUR) { + if (origin != SEEK_SET && origin != SEEK_CUR) { struct inode *inode = filp->f_mapping->host; int retval = nfs_revalidate_file_size(inode, filp);