diff options
| -rw-r--r-- | fs/exofs/exofs.h | 9 | ||||
| -rw-r--r-- | fs/exofs/super.c | 45 |
2 files changed, 30 insertions, 24 deletions
diff --git a/fs/exofs/exofs.h b/fs/exofs/exofs.h index e103dbd..9f62349 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 c57bedd..a747c87 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); |
