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https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git
synced 2024-08-23 09:19:51 +00:00
ocfs2: Add a name_len field to ocfs2_xattr_info.
Rather than calculating strlen all over the place, let's store the name length directly on ocfs2_xattr_info. Signed-off-by: Joel Becker <joel.becker@oracle.com>
This commit is contained in:
parent
6b240ff63c
commit
18853b95d1
1 changed files with 44 additions and 40 deletions
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@ -118,6 +118,7 @@ static struct xattr_handler *ocfs2_xattr_handler_map[OCFS2_XATTR_MAX] = {
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struct ocfs2_xattr_info {
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int xi_name_index;
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const char *xi_name;
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int xi_name_len;
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const void *xi_value;
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size_t xi_value_len;
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};
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@ -1361,9 +1362,9 @@ static int ocfs2_xattr_cleanup(struct inode *inode,
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size_t offs)
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{
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int ret = 0;
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size_t name_len = strlen(xi->xi_name);
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void *val = xs->base + offs;
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size_t size = OCFS2_XATTR_SIZE(name_len) + OCFS2_XATTR_ROOT_SIZE;
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size_t size = OCFS2_XATTR_SIZE(xi->xi_name_len) +
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OCFS2_XATTR_ROOT_SIZE;
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ret = vb->vb_access(handle, INODE_CACHE(inode), vb->vb_bh,
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OCFS2_JOURNAL_ACCESS_WRITE);
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@ -1427,16 +1428,16 @@ static int ocfs2_xattr_set_value_outside(struct inode *inode,
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struct ocfs2_xattr_value_buf *vb,
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size_t offs)
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{
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size_t name_len = strlen(xi->xi_name);
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void *val = xs->base + offs;
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struct ocfs2_xattr_value_root *xv = NULL;
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size_t size = OCFS2_XATTR_SIZE(name_len) + OCFS2_XATTR_ROOT_SIZE;
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size_t size = OCFS2_XATTR_SIZE(xi->xi_name_len) +
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OCFS2_XATTR_ROOT_SIZE;
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int ret = 0;
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memset(val, 0, size);
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memcpy(val, xi->xi_name, name_len);
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memcpy(val, xi->xi_name, xi->xi_name_len);
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xv = (struct ocfs2_xattr_value_root *)
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(val + OCFS2_XATTR_SIZE(name_len));
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(val + OCFS2_XATTR_SIZE(xi->xi_name_len));
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xv->xr_clusters = 0;
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xv->xr_last_eb_blk = 0;
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xv->xr_list.l_tree_depth = 0;
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@ -1659,7 +1660,6 @@ static void ocfs2_xattr_set_entry_local(struct inode *inode,
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struct ocfs2_xattr_entry *last,
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size_t min_offs)
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{
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size_t name_len = strlen(xi->xi_name);
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struct ocfs2_xa_loc loc;
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if (xs->xattr_bh == xs->inode_bh)
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@ -1673,7 +1673,7 @@ static void ocfs2_xattr_set_entry_local(struct inode *inode,
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le16_add_cpu(&xs->header->xh_count, 1);
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ocfs2_xattr_set_type(last, xi->xi_name_index);
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ocfs2_xattr_set_local(last, 1);
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last->xe_name_len = name_len;
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last->xe_name_len = xi->xi_name_len;
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} else {
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void *first_val;
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void *val;
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@ -1685,23 +1685,23 @@ static void ocfs2_xattr_set_entry_local(struct inode *inode,
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if (le64_to_cpu(xs->here->xe_value_size) >
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OCFS2_XATTR_INLINE_SIZE)
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size = OCFS2_XATTR_SIZE(name_len) +
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size = OCFS2_XATTR_SIZE(xi->xi_name_len) +
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OCFS2_XATTR_ROOT_SIZE;
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else
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size = OCFS2_XATTR_SIZE(name_len) +
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size = OCFS2_XATTR_SIZE(xi->xi_name_len) +
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OCFS2_XATTR_SIZE(le64_to_cpu(xs->here->xe_value_size));
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if (xi->xi_value && size == OCFS2_XATTR_SIZE(name_len) +
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if (xi->xi_value && size == OCFS2_XATTR_SIZE(xi->xi_name_len) +
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OCFS2_XATTR_SIZE(xi->xi_value_len)) {
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/* The old and the new value have the
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same size. Just replace the value. */
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ocfs2_xattr_set_local(xs->here, 1);
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xs->here->xe_value_size = cpu_to_le64(xi->xi_value_len);
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/* Clear value bytes. */
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memset(val + OCFS2_XATTR_SIZE(name_len),
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memset(val + OCFS2_XATTR_SIZE(xi->xi_name_len),
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0,
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OCFS2_XATTR_SIZE(xi->xi_value_len));
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memcpy(val + OCFS2_XATTR_SIZE(name_len),
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memcpy(val + OCFS2_XATTR_SIZE(xi->xi_name_len),
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xi->xi_value,
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xi->xi_value_len);
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return;
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@ -1716,14 +1716,14 @@ static void ocfs2_xattr_set_entry_local(struct inode *inode,
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}
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if (xi->xi_value) {
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/* Insert the new name+value. */
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size_t size = OCFS2_XATTR_SIZE(name_len) +
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size_t size = OCFS2_XATTR_SIZE(xi->xi_name_len) +
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OCFS2_XATTR_SIZE(xi->xi_value_len);
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void *val = xs->base + min_offs - size;
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xs->here->xe_name_offset = cpu_to_le16(min_offs - size);
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memset(val, 0, size);
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memcpy(val, xi->xi_name, name_len);
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memcpy(val + OCFS2_XATTR_SIZE(name_len),
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memcpy(val, xi->xi_name, xi->xi_name_len);
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memcpy(val + OCFS2_XATTR_SIZE(xi->xi_name_len),
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xi->xi_value,
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xi->xi_value_len);
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xs->here->xe_value_size = cpu_to_le64(xi->xi_value_len);
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@ -1752,13 +1752,14 @@ static int ocfs2_xattr_set_entry(struct inode *inode,
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struct ocfs2_xattr_entry *last;
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struct ocfs2_inode_info *oi = OCFS2_I(inode);
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struct ocfs2_dinode *di = (struct ocfs2_dinode *)xs->inode_bh->b_data;
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size_t min_offs = xs->end - xs->base, name_len = strlen(xi->xi_name);
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size_t min_offs = xs->end - xs->base;
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size_t size_l = 0;
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handle_t *handle = ctxt->handle;
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int free, i, ret;
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struct ocfs2_xattr_info xi_l = {
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.xi_name_index = xi->xi_name_index,
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.xi_name = xi->xi_name,
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.xi_name_len = xi->xi_name_len,
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.xi_value = xi->xi_value,
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.xi_value_len = xi->xi_value_len,
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};
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@ -1790,27 +1791,28 @@ static int ocfs2_xattr_set_entry(struct inode *inode,
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if (!xs->not_found) {
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size_t size = 0;
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if (ocfs2_xattr_is_local(xs->here))
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size = OCFS2_XATTR_SIZE(name_len) +
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size = OCFS2_XATTR_SIZE(xi->xi_name_len) +
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OCFS2_XATTR_SIZE(le64_to_cpu(xs->here->xe_value_size));
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else
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size = OCFS2_XATTR_SIZE(name_len) +
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size = OCFS2_XATTR_SIZE(xi->xi_name_len) +
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OCFS2_XATTR_ROOT_SIZE;
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free += (size + sizeof(struct ocfs2_xattr_entry));
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}
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/* Check free space in inode or block */
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if (xi->xi_value && xi->xi_value_len > OCFS2_XATTR_INLINE_SIZE) {
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if (free < sizeof(struct ocfs2_xattr_entry) +
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OCFS2_XATTR_SIZE(name_len) +
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OCFS2_XATTR_SIZE(xi->xi_name_len) +
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OCFS2_XATTR_ROOT_SIZE) {
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ret = -ENOSPC;
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goto out;
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}
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size_l = OCFS2_XATTR_SIZE(name_len) + OCFS2_XATTR_ROOT_SIZE;
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size_l = OCFS2_XATTR_SIZE(xi->xi_name_len) +
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OCFS2_XATTR_ROOT_SIZE;
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xi_l.xi_value = (void *)&def_xv;
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xi_l.xi_value_len = OCFS2_XATTR_ROOT_SIZE;
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} else if (xi->xi_value) {
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if (free < sizeof(struct ocfs2_xattr_entry) +
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OCFS2_XATTR_SIZE(name_len) +
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OCFS2_XATTR_SIZE(xi->xi_name_len) +
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OCFS2_XATTR_SIZE(xi->xi_value_len)) {
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ret = -ENOSPC;
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goto out;
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@ -1819,7 +1821,7 @@ static int ocfs2_xattr_set_entry(struct inode *inode,
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if (!xs->not_found) {
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/* For existing extended attribute */
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size_t size = OCFS2_XATTR_SIZE(name_len) +
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size_t size = OCFS2_XATTR_SIZE(xi->xi_name_len) +
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OCFS2_XATTR_SIZE(le64_to_cpu(xs->here->xe_value_size));
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size_t offs = le16_to_cpu(xs->here->xe_name_offset);
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void *val = xs->base + offs;
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@ -1834,7 +1836,7 @@ static int ocfs2_xattr_set_entry(struct inode *inode,
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} else if (!ocfs2_xattr_is_local(xs->here)) {
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/* For existing xattr which has value outside */
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vb.vb_xv = (struct ocfs2_xattr_value_root *)
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(val + OCFS2_XATTR_SIZE(name_len));
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(val + OCFS2_XATTR_SIZE(xi->xi_name_len));
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if (xi->xi_value_len > OCFS2_XATTR_INLINE_SIZE) {
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/*
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@ -2616,7 +2618,7 @@ static int ocfs2_xattr_can_be_in_inode(struct inode *inode,
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value_size = OCFS2_XATTR_SIZE(xi->xi_value_len);
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if (free >= sizeof(struct ocfs2_xattr_entry) +
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OCFS2_XATTR_SIZE(strlen(xi->xi_name)) + value_size)
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OCFS2_XATTR_SIZE(xi->xi_name_len) + value_size)
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return 1;
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return 0;
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@ -3048,6 +3050,7 @@ int ocfs2_xattr_set_handle(handle_t *handle,
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struct ocfs2_xattr_info xi = {
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.xi_name_index = name_index,
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.xi_name = name,
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.xi_name_len = strlen(name),
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.xi_value = value,
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.xi_value_len = value_len,
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};
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@ -3131,6 +3134,7 @@ int ocfs2_xattr_set(struct inode *inode,
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struct ocfs2_xattr_info xi = {
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.xi_name_index = name_index,
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.xi_name = name,
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.xi_name_len = strlen(name),
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.xi_value = value,
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.xi_value_len = value_len,
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};
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@ -4980,7 +4984,6 @@ static void ocfs2_xattr_set_entry_normal(struct inode *inode,
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int local)
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{
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struct ocfs2_xattr_entry *last, *xe;
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int name_len = strlen(xi->xi_name);
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struct ocfs2_xattr_header *xh = xs->header;
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u16 count = le16_to_cpu(xh->xh_count), start;
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size_t blocksize = inode->i_sb->s_blocksize;
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@ -4995,10 +4998,10 @@ static void ocfs2_xattr_set_entry_normal(struct inode *inode,
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xe = xs->here;
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offs = le16_to_cpu(xe->xe_name_offset);
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if (ocfs2_xattr_is_local(xe))
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size = OCFS2_XATTR_SIZE(name_len) +
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size = OCFS2_XATTR_SIZE(xi->xi_name_len) +
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OCFS2_XATTR_SIZE(le64_to_cpu(xe->xe_value_size));
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else
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size = OCFS2_XATTR_SIZE(name_len) +
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size = OCFS2_XATTR_SIZE(xi->xi_name_len) +
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OCFS2_XATTR_SIZE(OCFS2_XATTR_ROOT_SIZE);
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/*
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@ -5008,7 +5011,7 @@ static void ocfs2_xattr_set_entry_normal(struct inode *inode,
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* new_size safely here.
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* See ocfs2_xattr_set_in_bucket.
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*/
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new_size = OCFS2_XATTR_SIZE(name_len) +
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new_size = OCFS2_XATTR_SIZE(xi->xi_name_len) +
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OCFS2_XATTR_SIZE(xi->xi_value_len);
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if (xi->xi_value) {
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@ -5025,10 +5028,10 @@ static void ocfs2_xattr_set_entry_normal(struct inode *inode,
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val = ocfs2_xattr_bucket_get_val(inode,
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xs->bucket, offs);
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memset(val + OCFS2_XATTR_SIZE(name_len), 0,
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size - OCFS2_XATTR_SIZE(name_len));
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memset(val + OCFS2_XATTR_SIZE(xi->xi_name_len), 0,
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size - OCFS2_XATTR_SIZE(xi->xi_name_len));
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if (OCFS2_XATTR_SIZE(xi->xi_value_len) > 0)
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memcpy(val + OCFS2_XATTR_SIZE(name_len),
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memcpy(val + OCFS2_XATTR_SIZE(xi->xi_name_len),
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xi->xi_value, xi->xi_value_len);
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le16_add_cpu(&xh->xh_name_value_len, new_size);
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@ -5069,13 +5072,14 @@ static void ocfs2_xattr_set_entry_normal(struct inode *inode,
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le16_add_cpu(&xh->xh_count, 1);
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memset(xe, 0, sizeof(struct ocfs2_xattr_entry));
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xe->xe_name_hash = cpu_to_le32(name_hash);
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xe->xe_name_len = name_len;
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xe->xe_name_len = xi->xi_name_len;
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ocfs2_xattr_set_type(xe, xi->xi_name_index);
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}
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set_new_name_value:
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/* Insert the new name+value. */
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size = OCFS2_XATTR_SIZE(name_len) + OCFS2_XATTR_SIZE(xi->xi_value_len);
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size = OCFS2_XATTR_SIZE(xi->xi_name_len) +
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OCFS2_XATTR_SIZE(xi->xi_value_len);
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/*
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* We must make sure that the name/value pair
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xe->xe_name_offset = cpu_to_le16(offs - size);
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memset(val, 0, size);
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memcpy(val, xi->xi_name, name_len);
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memcpy(val + OCFS2_XATTR_SIZE(name_len), xi->xi_value,
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memcpy(val, xi->xi_name, xi->xi_name_len);
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memcpy(val + OCFS2_XATTR_SIZE(xi->xi_name_len), xi->xi_value,
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xi->xi_value_len);
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xe->xe_value_size = cpu_to_le64(xi->xi_value_len);
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@ -5424,7 +5428,7 @@ static int ocfs2_xattr_set_in_bucket(struct inode *inode,
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char *val = (char *)xi->xi_value;
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struct ocfs2_xattr_entry *xe = xs->here;
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u32 name_hash = ocfs2_xattr_name_hash(inode, xi->xi_name,
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strlen(xi->xi_name));
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xi->xi_name_len);
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if (!xs->not_found && !ocfs2_xattr_is_local(xe)) {
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/*
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@ -5537,7 +5541,7 @@ static int ocfs2_xattr_set_entry_index_block(struct inode *inode,
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struct ocfs2_xattr_entry *xe;
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u16 count, header_size, xh_free_start;
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int free, max_free, need, old;
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size_t value_size = 0, name_len = strlen(xi->xi_name);
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size_t value_size = 0;
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size_t blocksize = inode->i_sb->s_blocksize;
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int ret, allocation = 0;
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@ -5564,9 +5568,9 @@ static int ocfs2_xattr_set_entry_index_block(struct inode *inode,
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if (xs->not_found)
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need = sizeof(struct ocfs2_xattr_entry) +
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OCFS2_XATTR_SIZE(name_len) + value_size;
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OCFS2_XATTR_SIZE(xi->xi_name_len) + value_size;
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else {
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need = value_size + OCFS2_XATTR_SIZE(name_len);
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need = value_size + OCFS2_XATTR_SIZE(xi->xi_name_len);
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/*
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* We only replace the old value if the new length is smaller
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