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authorBoaz Harrosh <bharrosh@panasas.com>2010-01-28 11:46:16 +0200
committerBoaz Harrosh <bharrosh@panasas.com>2010-02-28 03:35:27 -0800
commit45d3abcb1a7388b2b97582e13bf9dd21784dcaa5 (patch)
treee957fdec303c073490c261999d6939c2ecf20352 /fs/exofs/super.c
parent22ddc556380cf5645c52292b6d980766646eb864 (diff)
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>
Diffstat (limited to 'fs/exofs/super.c')
-rw-r--r--fs/exofs/super.c51
1 files changed, 27 insertions, 24 deletions
diff --git a/fs/exofs/super.c b/fs/exofs/super.c
index a1d1e77b12e..fc8875186ae 100644
--- a/fs/exofs/super.c
+++ b/fs/exofs/super.c
@@ -210,7 +210,7 @@ int exofs_sync_fs(struct super_block *sb, int wait)
sbi = sb->s_fs_info;
fscb = &sbi->s_fscb;
- ret = exofs_get_io_state(sbi, &ios);
+ ret = exofs_get_io_state(&sbi->layout, &ios);
if (ret)
goto out;
@@ -264,12 +264,12 @@ static void _exofs_print_device(const char *msg, const char *dev_path,
void exofs_free_sbi(struct exofs_sb_info *sbi)
{
- while (sbi->s_numdevs) {
- int i = --sbi->s_numdevs;
- struct osd_dev *od = sbi->s_ods[i];
+ while (sbi->layout.s_numdevs) {
+ int i = --sbi->layout.s_numdevs;
+ struct osd_dev *od = sbi->layout.s_ods[i];
if (od) {
- sbi->s_ods[i] = NULL;
+ sbi->layout.s_ods[i] = NULL;
osduld_put_device(od);
}
}
@@ -298,7 +298,8 @@ static void exofs_put_super(struct super_block *sb)
msecs_to_jiffies(100));
}
- _exofs_print_device("Unmounting", NULL, sbi->s_ods[0], sbi->s_pid);
+ _exofs_print_device("Unmounting", NULL, sbi->layout.s_ods[0],
+ sbi->layout.s_pid);
exofs_free_sbi(sbi);
sb->s_fs_info = NULL;
@@ -361,7 +362,7 @@ static int exofs_read_lookup_dev_table(struct exofs_sb_info **psbi,
{
struct exofs_sb_info *sbi = *psbi;
struct osd_dev *fscb_od;
- struct osd_obj_id obj = {.partition = sbi->s_pid,
+ struct osd_obj_id obj = {.partition = sbi->layout.s_pid,
.id = EXOFS_DEVTABLE_ID};
struct exofs_device_table *dt;
unsigned table_bytes = table_count * sizeof(dt->dt_dev_table[0]) +
@@ -376,9 +377,9 @@ static int exofs_read_lookup_dev_table(struct exofs_sb_info **psbi,
return -ENOMEM;
}
- fscb_od = sbi->s_ods[0];
- sbi->s_ods[0] = NULL;
- sbi->s_numdevs = 0;
+ fscb_od = sbi->layout.s_ods[0];
+ sbi->layout.s_ods[0] = NULL;
+ sbi->layout.s_numdevs = 0;
ret = exofs_read_kern(fscb_od, sbi->s_cred, &obj, 0, dt, table_bytes);
if (unlikely(ret)) {
EXOFS_ERR("ERROR: reading device table\n");
@@ -397,14 +398,15 @@ static int exofs_read_lookup_dev_table(struct exofs_sb_info **psbi,
goto out;
if (likely(numdevs > 1)) {
- unsigned size = numdevs * sizeof(sbi->s_ods[0]);
+ unsigned size = numdevs * sizeof(sbi->layout.s_ods[0]);
sbi = krealloc(sbi, sizeof(*sbi) + size, GFP_KERNEL);
if (unlikely(!sbi)) {
ret = -ENOMEM;
goto out;
}
- memset(&sbi->s_ods[1], 0, size - sizeof(sbi->s_ods[0]));
+ memset(&sbi->layout.s_ods[1], 0,
+ size - sizeof(sbi->layout.s_ods[0]));
*psbi = sbi;
}
@@ -427,8 +429,8 @@ static int exofs_read_lookup_dev_table(struct exofs_sb_info **psbi,
* line. We always keep them in device-table order.
*/
if (fscb_od && osduld_device_same(fscb_od, &odi)) {
- sbi->s_ods[i] = fscb_od;
- ++sbi->s_numdevs;
+ sbi->layout.s_ods[i] = fscb_od;
+ ++sbi->layout.s_numdevs;
fscb_od = NULL;
continue;
}
@@ -441,8 +443,8 @@ static int exofs_read_lookup_dev_table(struct exofs_sb_info **psbi,
goto out;
}
- sbi->s_ods[i] = od;
- ++sbi->s_numdevs;
+ sbi->layout.s_ods[i] = od;
+ ++sbi->layout.s_numdevs;
/* Read the fscb of the other devices to make sure the FS
* partition is there.
@@ -499,9 +501,10 @@ static int exofs_fill_super(struct super_block *sb, void *data, int silent)
goto free_sbi;
}
- sbi->s_ods[0] = od;
- sbi->s_numdevs = 1;
- sbi->s_pid = opts->pid;
+ /* Default layout in case we do not have a device-table */
+ sbi->layout.s_ods[0] = od;
+ sbi->layout.s_numdevs = 1;
+ sbi->layout.s_pid = opts->pid;
sbi->s_timeout = opts->timeout;
/* fill in some other data by hand */
@@ -514,7 +517,7 @@ static int exofs_fill_super(struct super_block *sb, void *data, int silent)
sb->s_bdev = NULL;
sb->s_dev = 0;
- obj.partition = sbi->s_pid;
+ obj.partition = sbi->layout.s_pid;
obj.id = EXOFS_SUPER_ID;
exofs_make_credential(sbi->s_cred, &obj);
@@ -578,13 +581,13 @@ static int exofs_fill_super(struct super_block *sb, void *data, int silent)
goto free_sbi;
}
- _exofs_print_device("Mounting", opts->dev_name, sbi->s_ods[0],
- sbi->s_pid);
+ _exofs_print_device("Mounting", opts->dev_name, sbi->layout.s_ods[0],
+ sbi->layout.s_pid);
return 0;
free_sbi:
EXOFS_ERR("Unable to mount exofs on %s pid=0x%llx err=%d\n",
- opts->dev_name, sbi->s_pid, ret);
+ opts->dev_name, sbi->layout.s_pid, ret);
exofs_free_sbi(sbi);
return ret;
}
@@ -627,7 +630,7 @@ static int exofs_statfs(struct dentry *dentry, struct kstatfs *buf)
uint8_t cred_a[OSD_CAP_LEN];
int ret;
- ret = exofs_get_io_state(sbi, &ios);
+ ret = exofs_get_io_state(&sbi->layout, &ios);
if (ret) {
EXOFS_DBGMSG("exofs_get_io_state failed.\n");
return ret;