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-rw-r--r--fs/exofs/exofs.h9
-rw-r--r--fs/exofs/super.c45
2 files changed, 30 insertions, 24 deletions
diff --git a/fs/exofs/exofs.h b/fs/exofs/exofs.h
index e103dbd86fe1..9f62349a5a5c 100644
--- a/fs/exofs/exofs.h
+++ b/fs/exofs/exofs.h
@@ -66,13 +66,14 @@ struct exofs_layout {
enum exofs_inode_layout_gen_functions lay_func;
unsigned s_numdevs; /* Num of devices in array */
- struct osd_dev *s_ods[0]; /* Variable length */
+ struct osd_dev **s_ods; /* osd_dev array */
};
/*
* our extension to the in-memory superblock
*/
struct exofs_sb_info {
+ struct backing_dev_info bdi; /* register our bdi with VFS */
struct exofs_sb_stats s_ess; /* Written often, pre-allocate*/
int s_timeout; /* timeout for OSD operations */
uint64_t s_nextid; /* highest object ID used */
@@ -81,15 +82,11 @@ struct exofs_sb_info {
u32 s_next_generation; /* next gen # to use */
atomic_t s_curr_pending; /* number of pending commands */
uint8_t s_cred[OSD_CAP_LEN]; /* credential for the fscb */
- struct backing_dev_info bdi; /* register our bdi with VFS */
struct pnfs_osd_data_map data_map; /* Default raid to use
* FIXME: Needed ?
*/
-/* struct exofs_layout dir_layout;*/ /* Default dir layout */
- struct exofs_layout layout; /* Default files layout,
- * contains the variable osd_dev
- * array. Keep last */
+ struct exofs_layout layout; /* Default files layout */
struct osd_dev *_min_one_dev[1]; /* Place holder for one dev */
};
diff --git a/fs/exofs/super.c b/fs/exofs/super.c
index c57beddcc217..a747c871d313 100644
--- a/fs/exofs/super.c
+++ b/fs/exofs/super.c
@@ -393,6 +393,8 @@ void exofs_free_sbi(struct exofs_sb_info *sbi)
osduld_put_device(od);
}
}
+ if (sbi->layout.s_ods != sbi->_min_one_dev)
+ kfree(sbi->layout.s_ods);
kfree(sbi);
}
@@ -501,6 +503,15 @@ static int _read_and_match_data_map(struct exofs_sb_info *sbi, unsigned numdevs,
return -EINVAL;
}
+ EXOFS_DBGMSG("exofs: layout: "
+ "num_comps=%u stripe_unit=0x%x group_width=%u "
+ "group_depth=0x%llx mirrors_p1=%u raid_algorithm=%u\n",
+ numdevs,
+ sbi->layout.stripe_unit,
+ sbi->layout.group_width,
+ _LLU(sbi->layout.group_depth),
+ sbi->layout.mirrors_p1,
+ sbi->data_map.odm_raid_algorithm);
return 0;
}
@@ -547,11 +558,10 @@ static int exofs_devs_2_odi(struct exofs_dt_device_info *dt_dev,
return !(odi->systemid_len || odi->osdname_len);
}
-static int exofs_read_lookup_dev_table(struct exofs_sb_info **psbi,
+static int exofs_read_lookup_dev_table(struct exofs_sb_info *sbi,
+ struct osd_dev *fscb_od,
unsigned table_count)
{
- struct exofs_sb_info *sbi = *psbi;
- struct osd_dev *fscb_od;
struct osd_obj_id obj = {.partition = sbi->layout.s_pid,
.id = EXOFS_DEVTABLE_ID};
struct exofs_device_table *dt;
@@ -567,8 +577,6 @@ static int exofs_read_lookup_dev_table(struct exofs_sb_info **psbi,
return -ENOMEM;
}
- 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)) {
@@ -590,14 +598,13 @@ static int exofs_read_lookup_dev_table(struct exofs_sb_info **psbi,
if (likely(numdevs > 1)) {
unsigned size = numdevs * sizeof(sbi->layout.s_ods[0]);
- sbi = krealloc(sbi, sizeof(*sbi) + size, GFP_KERNEL);
- if (unlikely(!sbi)) {
+ sbi->layout.s_ods = kzalloc(size, GFP_KERNEL);
+ if (unlikely(!sbi->layout.s_ods)) {
+ EXOFS_ERR("ERROR: faild allocating Device array[%d]\n",
+ numdevs);
ret = -ENOMEM;
goto out;
}
- memset(&sbi->layout.s_ods[1], 0,
- size - sizeof(sbi->layout.s_ods[0]));
- *psbi = sbi;
}
for (i = 0; i < numdevs; i++) {
@@ -684,10 +691,6 @@ static int exofs_fill_super(struct super_block *sb, void *data, int silent)
if (!sbi)
return -ENOMEM;
- ret = bdi_setup_and_register(&sbi->bdi, "exofs", BDI_CAP_MAP_COPY);
- if (ret)
- goto free_bdi;
-
/* use mount options to fill superblock */
if (opts->is_osdname) {
struct osd_dev_info odi = {.systemid_len = 0};
@@ -709,7 +712,7 @@ static int exofs_fill_super(struct super_block *sb, void *data, int silent)
sbi->layout.group_width = 1;
sbi->layout.group_depth = -1;
sbi->layout.group_count = 1;
- sbi->layout.s_ods[0] = od;
+ sbi->layout.s_ods = sbi->_min_one_dev;
sbi->layout.s_numdevs = 1;
sbi->layout.s_pid = opts->pid;
sbi->s_timeout = opts->timeout;
@@ -757,9 +760,11 @@ static int exofs_fill_super(struct super_block *sb, void *data, int silent)
table_count = le64_to_cpu(fscb.s_dev_table_count);
if (table_count) {
- ret = exofs_read_lookup_dev_table(&sbi, table_count);
+ ret = exofs_read_lookup_dev_table(sbi, od, table_count);
if (unlikely(ret))
goto free_sbi;
+ } else {
+ sbi->layout.s_ods[0] = od;
}
__sbi_read_stats(sbi);
@@ -793,6 +798,12 @@ static int exofs_fill_super(struct super_block *sb, void *data, int silent)
goto free_sbi;
}
+ ret = bdi_setup_and_register(&sbi->bdi, "exofs", BDI_CAP_MAP_COPY);
+ if (ret) {
+ EXOFS_DBGMSG("Failed to bdi_setup_and_register\n");
+ goto free_sbi;
+ }
+
_exofs_print_device("Mounting", opts->dev_name, sbi->layout.s_ods[0],
sbi->layout.s_pid);
if (opts->is_osdname)
@@ -800,8 +811,6 @@ static int exofs_fill_super(struct super_block *sb, void *data, int silent)
return 0;
free_sbi:
- bdi_destroy(&sbi->bdi);
-free_bdi:
EXOFS_ERR("Unable to mount exofs on %s pid=0x%llx err=%d\n",
opts->dev_name, sbi->layout.s_pid, ret);
exofs_free_sbi(sbi);
generated by cgit v1.2.3 (git 2.39.1) at 2024-11-15 02:22:12 +0000