From 62e96cf81988101fe9e086b2877307b6adda5197 Mon Sep 17 00:00:00 2001 From: Bob Peterson Date: Mon, 6 Jan 2014 17:16:01 -0500 Subject: [PATCH] GFS2: Increase i_writecount during gfs2_setattr_chown This patch calls get_write_access in function gfs2_setattr_chown, which merely increases inode->i_writecount for the duration of the function. That will ensure that any file closes won't delete the inode's multi-block reservation while the function is running. It also ensures that a multi-block reservation exists when needed for quota change operations during the chown. Signed-off-by: Bob Peterson Signed-off-by: Steven Whitehouse --- fs/gfs2/inode.c | 16 +++++++++++++++- 1 file changed, 15 insertions(+), 1 deletion(-) diff --git a/fs/gfs2/inode.c b/fs/gfs2/inode.c index 4acc584..51cf10d 100644 --- a/fs/gfs2/inode.c +++ b/fs/gfs2/inode.c @@ -1623,10 +1623,22 @@ static int setattr_chown(struct inode *inode, struct iattr *attr) if (!(attr->ia_valid & ATTR_GID) || gid_eq(ogid, ngid)) ogid = ngid = NO_GID_QUOTA_CHANGE; - error = gfs2_quota_lock(ip, nuid, ngid); + error = get_write_access(inode); if (error) return error; + error = gfs2_rs_alloc(ip); + if (error) + goto out; + + error = gfs2_rindex_update(sdp); + if (error) + goto out; + + error = gfs2_quota_lock(ip, nuid, ngid); + if (error) + goto out; + if (!uid_eq(ouid, NO_UID_QUOTA_CHANGE) || !gid_eq(ogid, NO_GID_QUOTA_CHANGE)) { error = gfs2_quota_check(ip, nuid, ngid); @@ -1653,6 +1665,8 @@ out_end_trans: gfs2_trans_end(sdp); out_gunlock_q: gfs2_quota_unlock(ip); +out: + put_write_access(inode); return error; } -- 2.7.4