exofs: Move layout related members to a layout structure
* Abstract away those members in exofs_sb_info that are related/needed
by a layout into a new exofs_layout structure. Embed it in exofs_sb_info.
* At exofs_io_state receive/keep a pointer to an exofs_layout. No need for
an exofs_sb_info pointer, all we need is at exofs_layout.
* Change any usage of above exofs_sb_info members to their new name.
Signed-off-by: Boaz Harrosh <bharrosh@panasas.com>
diff --git a/fs/exofs/ios.c b/fs/exofs/ios.c
index 439c5d0..83e54a7 100644
--- a/fs/exofs/ios.c
+++ b/fs/exofs/ios.c
@@ -67,23 +67,24 @@
return ret;
}
-int exofs_get_io_state(struct exofs_sb_info *sbi, struct exofs_io_state** pios)
+int exofs_get_io_state(struct exofs_layout *layout,
+ struct exofs_io_state **pios)
{
struct exofs_io_state *ios;
/*TODO: Maybe use kmem_cach per sbi of size
- * exofs_io_state_size(sbi->s_numdevs)
+ * exofs_io_state_size(layout->s_numdevs)
*/
- ios = kzalloc(exofs_io_state_size(sbi->s_numdevs), GFP_KERNEL);
+ ios = kzalloc(exofs_io_state_size(layout->s_numdevs), GFP_KERNEL);
if (unlikely(!ios)) {
EXOFS_DBGMSG("Faild kzalloc bytes=%d\n",
- exofs_io_state_size(sbi->s_numdevs));
+ exofs_io_state_size(layout->s_numdevs));
*pios = NULL;
return -ENOMEM;
}
- ios->sbi = sbi;
- ios->obj.partition = sbi->s_pid;
+ ios->layout = layout;
+ ios->obj.partition = layout->s_pid;
*pios = ios;
return 0;
}
@@ -238,10 +239,10 @@
{
int i, ret;
- for (i = 0; i < ios->sbi->s_numdevs; i++) {
+ for (i = 0; i < ios->layout->s_numdevs; i++) {
struct osd_request *or;
- or = osd_start_request(ios->sbi->s_ods[i], GFP_KERNEL);
+ or = osd_start_request(ios->layout->s_ods[i], GFP_KERNEL);
if (unlikely(!or)) {
EXOFS_ERR("%s: osd_start_request failed\n", __func__);
ret = -ENOMEM;
@@ -262,10 +263,10 @@
{
int i, ret;
- for (i = 0; i < ios->sbi->s_numdevs; i++) {
+ for (i = 0; i < ios->layout->s_numdevs; i++) {
struct osd_request *or;
- or = osd_start_request(ios->sbi->s_ods[i], GFP_KERNEL);
+ or = osd_start_request(ios->layout->s_ods[i], GFP_KERNEL);
if (unlikely(!or)) {
EXOFS_ERR("%s: osd_start_request failed\n", __func__);
ret = -ENOMEM;
@@ -286,10 +287,10 @@
{
int i, ret;
- for (i = 0; i < ios->sbi->s_numdevs; i++) {
+ for (i = 0; i < ios->layout->s_numdevs; i++) {
struct osd_request *or;
- or = osd_start_request(ios->sbi->s_ods[i], GFP_KERNEL);
+ or = osd_start_request(ios->layout->s_ods[i], GFP_KERNEL);
if (unlikely(!or)) {
EXOFS_ERR("%s: osd_start_request failed\n", __func__);
ret = -ENOMEM;
@@ -361,8 +362,9 @@
struct osd_request *or;
unsigned first_dev = (unsigned)ios->obj.id;
- first_dev %= ios->sbi->s_numdevs;
- or = osd_start_request(ios->sbi->s_ods[first_dev], GFP_KERNEL);
+ first_dev %= ios->layout->s_numdevs;
+ or = osd_start_request(ios->layout->s_ods[first_dev],
+ GFP_KERNEL);
if (unlikely(!or)) {
EXOFS_ERR("%s: osd_start_request failed\n", __func__);
ret = -ENOMEM;
@@ -438,7 +440,7 @@
__be64 newsize;
int i, ret;
- if (exofs_get_io_state(sbi, &ios))
+ if (exofs_get_io_state(&sbi->layout, &ios))
return -ENOMEM;
ios->obj.id = exofs_oi_objno(oi);
@@ -448,10 +450,10 @@
attr = g_attr_logical_length;
attr.val_ptr = &newsize;
- for (i = 0; i < sbi->s_numdevs; i++) {
+ for (i = 0; i < sbi->layout.s_numdevs; i++) {
struct osd_request *or;
- or = osd_start_request(sbi->s_ods[i], GFP_KERNEL);
+ or = osd_start_request(sbi->layout.s_ods[i], GFP_KERNEL);
if (unlikely(!or)) {
EXOFS_ERR("%s: osd_start_request failed\n", __func__);
ret = -ENOMEM;