From: Subodh Nijsure <snijs...@grid-net.com>
This patch adds ubifs_err() output to some error paths to tell the user
what's going on.
Signed-off-by: Subodh Nijsure <snijs...@grid-net.com>
Signed-off-by: Marc Kleine-Budde <m...@pengutronix.de>
Signed-off-by: Ben Shelton <ben.shel...@ni.com>
Acked-by: Brad Mouring <brad.mour...@ni.com>
Acked-by: Terry Wilcox <terry.wil...@ni.com>
Acked-by: Gratian Crisan <gratian.cri...@ni.com>
---
fs/ubifs/xattr.c | 20 ++++++++++++++++----
1 file changed, 16 insertions(+), 4 deletions(-)
diff --git a/fs/ubifs/xattr.c b/fs/ubifs/xattr.c
index f844841..2b99e49 100644
--- a/fs/ubifs/xattr.c
+++ b/fs/ubifs/xattr.c
@@ -100,24 +100,32 @@ static const struct file_operations empty_fops;
static int create_xattr(struct ubifs_info *c, struct inode *host,
const struct qstr *nm, const void *value, int size)
{
- int err;
+ int err, xattr_name_list_size;
struct inode *inode;
struct ubifs_inode *ui, *host_ui = ubifs_inode(host);
struct ubifs_budget_req req = { .new_ino = 1, .new_dent = 1,
.new_ino_d = ALIGN(size, 8), .dirtied_ino = 1,
.dirtied_ino_d = ALIGN(host_ui->data_len, 8) };
- if (host_ui->xattr_cnt >= MAX_XATTRS_PER_INODE)
+ if (host_ui->xattr_cnt >= MAX_XATTRS_PER_INODE) {
+ ubifs_err("ubifs xattr_cnt %d exceeds MAX_XATTR_PER_NODE (%d)",
+ host_ui->xattr_cnt, MAX_XATTRS_PER_INODE);
return -ENOSPC;
+ }
/*
* Linux limits the maximum size of the extended attribute names list
* to %XATTR_LIST_MAX. This means we should not allow creating more
* extended attributes if the name list becomes larger. This limitation
* is artificial for UBIFS, though.
*/
- if (host_ui->xattr_names + host_ui->xattr_cnt +
- nm->len + 1 > XATTR_LIST_MAX)
+ xattr_name_list_size = host_ui->xattr_names + host_ui->xattr_cnt +
+ nm->len + 1;
+
+ if (xattr_name_list_size > XATTR_LIST_MAX) {
+ ubifs_err("xattr name list too large %d > %d",
+ xattr_name_list_size, XATTR_LIST_MAX);
return -ENOSPC;
+ }
err = ubifs_budget_space(c, &req);
if (err)
@@ -652,5 +660,9 @@ int ubifs_init_security(struct inode *dentry, struct inode
*inode,
&ubifs_initxattrs, 0);
mutex_unlock(&inode->i_mutex);
+ if (err)
+ ubifs_err("cannot initialize extended attribute, error %d",
+ err);
+
return err;
}
--
2.1.1
--
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