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UBIFS: add ubifs_err() to print error reason 

This patch adds ubifs_err() output to some error paths to tell the user
what's going on.

Artem: improve the messages, rename too long variable

Signed-off-by: Subodh Nijsure <snijsure@grid-net.com>
Signed-off-by: Marc Kleine-Budde <mkl@pengutronix.de>
Signed-off-by: Ben Shelton <ben.shelton@ni.com>
Acked-by: Brad Mouring <brad.mouring@ni.com>
Acked-by: Terry Wilcox <terry.wilcox@ni.com>
Acked-by: Gratian Crisan <gratian.crisan@ni.com>
Signed-off-by: Artem Bityutskiy <artem.bityutskiy@linux.intel.com>
This commit is contained in:
Subodh Nijsure 2014-10-31 13:50:31 -05:00 committed by Richard Weinberger
parent d7f0b70d30
commit fee1756d80
1 changed files with 13 additions and 4 deletions
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17
fs/ubifs/xattr.c
View File

@ -100,24 +100,30 @@ 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, names_len;
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("inode %lu already has too many xattrs (%d), cannot create more",
host->i_ino, host_ui->xattr_cnt);
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)
names_len = host_ui->xattr_names + host_ui->xattr_cnt + nm->len + 1;
if (names_len > XATTR_LIST_MAX) {
ubifs_err("cannot add one more xattr name to inode %lu, total names length would become %d, max. is %d",
host->i_ino, names_len, XATTR_LIST_MAX);
return -ENOSPC;
}
err = ubifs_budget_space(c, &req);
if (err)
@ -651,5 +657,8 @@ int ubifs_init_security(struct inode *dentry, struct inode *inode,
&init_xattrs, 0);
mutex_unlock(&inode->i_mutex);
if (err)
ubifs_err("cannot initialize security for inode %lu, error %d",
inode->i_ino, err);
return err;
}