diff options
Diffstat (limited to 'fs/ocfs2')
| -rw-r--r-- | fs/ocfs2/ocfs2.h | 4 | ||||
| -rw-r--r-- | fs/ocfs2/ocfs2_fs.h | 1 | ||||
| -rw-r--r-- | fs/ocfs2/super.c | 55 |
3 files changed, 45 insertions, 15 deletions
diff --git a/fs/ocfs2/ocfs2.h b/fs/ocfs2/ocfs2.h index d5496a7..481387b 100644 --- a/fs/ocfs2/ocfs2.h +++ b/fs/ocfs2/ocfs2.h @@ -243,7 +243,7 @@ enum ocfs2_local_alloc_state enum ocfs2_mount_options { - OCFS2_MOUNT_HB_LOCAL = 1 << 0, /* Heartbeat started in local mode */ + OCFS2_MOUNT_HB_LOCAL = 1 << 0, /* Local heartbeat */ OCFS2_MOUNT_BARRIER = 1 << 1, /* Use block barriers */ OCFS2_MOUNT_NOINTR = 1 << 2, /* Don't catch signals */ OCFS2_MOUNT_ERRORS_PANIC = 1 << 3, /* Panic on errors */ @@ -256,6 +256,8 @@ enum ocfs2_mount_options control lists */ OCFS2_MOUNT_USRQUOTA = 1 << 10, /* We support user quotas */ OCFS2_MOUNT_GRPQUOTA = 1 << 11, /* We support group quotas */ + OCFS2_MOUNT_HB_NONE = 1 << 12, /* No heartbeat */ + OCFS2_MOUNT_HB_GLOBAL = 1 << 13, /* Global heartbeat */ }; #define OCFS2_OSB_SOFT_RO 0x0001 diff --git a/fs/ocfs2/ocfs2_fs.h b/fs/ocfs2/ocfs2_fs.h index d5b1d99..28ff536 100644 --- a/fs/ocfs2/ocfs2_fs.h +++ b/fs/ocfs2/ocfs2_fs.h @@ -376,6 +376,7 @@ static struct ocfs2_system_inode_info ocfs2_system_inodes[NUM_SYSTEM_INODES] = { /* Parameter passed from mount.ocfs2 to module */ #define OCFS2_HB_NONE "heartbeat=none" #define OCFS2_HB_LOCAL "heartbeat=local" +#define OCFS2_HB_GLOBAL "heartbeat=global" /* * OCFS2 directory file types. Only the low 3 bits are used. The diff --git a/fs/ocfs2/super.c b/fs/ocfs2/super.c index 7554317..4e009ad 100644 --- a/fs/ocfs2/super.c +++ b/fs/ocfs2/super.c @@ -162,6 +162,7 @@ enum { Opt_nointr, Opt_hb_none, Opt_hb_local, + Opt_hb_global, Opt_data_ordered, Opt_data_writeback, Opt_atime_quantum, @@ -190,6 +191,7 @@ static const match_table_t tokens = { {Opt_nointr, "nointr"}, {Opt_hb_none, OCFS2_HB_NONE}, {Opt_hb_local, OCFS2_HB_LOCAL}, + {Opt_hb_global, OCFS2_HB_GLOBAL}, {Opt_data_ordered, "data=ordered"}, {Opt_data_writeback, "data=writeback"}, {Opt_atime_quantum, "atime_quantum=%u"}, @@ -608,6 +610,7 @@ static int ocfs2_remount(struct super_block *sb, int *flags, char *data) int ret = 0; struct mount_options parsed_options; struct ocfs2_super *osb = OCFS2_SB(sb); + u32 tmp; lock_kernel(); @@ -617,8 +620,9 @@ static int ocfs2_remount(struct super_block *sb, int *flags, char *data) goto out; } - if ((osb->s_mount_opt & OCFS2_MOUNT_HB_LOCAL) != - (parsed_options.mount_opt & OCFS2_MOUNT_HB_LOCAL)) { + tmp = OCFS2_MOUNT_HB_LOCAL | OCFS2_MOUNT_HB_GLOBAL | + OCFS2_MOUNT_HB_NONE; + if ((osb->s_mount_opt & tmp) != (parsed_options.mount_opt & tmp)) { ret = -EINVAL; mlog(ML_ERROR, "Cannot change heartbeat mode on remount\n"); goto out; @@ -809,23 +813,29 @@ bail: static int ocfs2_verify_heartbeat(struct ocfs2_super *osb) { - if (ocfs2_mount_local(osb)) { - if (osb->s_mount_opt & OCFS2_MOUNT_HB_LOCAL) { + u32 hb_enabled = OCFS2_MOUNT_HB_LOCAL | OCFS2_MOUNT_HB_GLOBAL; + + if (osb->s_mount_opt & hb_enabled) { + if (ocfs2_mount_local(osb)) { mlog(ML_ERROR, "Cannot heartbeat on a locally " "mounted device.\n"); return -EINVAL; } - } - - if (ocfs2_userspace_stack(osb)) { - if (osb->s_mount_opt & OCFS2_MOUNT_HB_LOCAL) { + if (ocfs2_userspace_stack(osb)) { mlog(ML_ERROR, "Userspace stack expected, but " "o2cb heartbeat arguments passed to mount\n"); return -EINVAL; } + if (((osb->s_mount_opt & OCFS2_MOUNT_HB_GLOBAL) && + !ocfs2_cluster_o2cb_global_heartbeat(osb)) || + ((osb->s_mount_opt & OCFS2_MOUNT_HB_LOCAL) && + ocfs2_cluster_o2cb_global_heartbeat(osb))) { + mlog(ML_ERROR, "Mismatching o2cb heartbeat modes\n"); + return -EINVAL; + } } - if (!(osb->s_mount_opt & OCFS2_MOUNT_HB_LOCAL)) { + if (!(osb->s_mount_opt & hb_enabled)) { if (!ocfs2_mount_local(osb) && !ocfs2_is_hard_readonly(osb) && !ocfs2_userspace_stack(osb)) { mlog(ML_ERROR, "Heartbeat has to be started to mount " @@ -1291,6 +1301,7 @@ static int ocfs2_parse_options(struct super_block *sb, { int status; char *p; + u32 tmp; mlog_entry("remount: %d, options: \"%s\"\n", is_remount, options ? options : "(none)"); @@ -1322,7 +1333,10 @@ static int ocfs2_parse_options(struct super_block *sb, mopt->mount_opt |= OCFS2_MOUNT_HB_LOCAL; break; case Opt_hb_none: - mopt->mount_opt &= ~OCFS2_MOUNT_HB_LOCAL; + mopt->mount_opt |= OCFS2_MOUNT_HB_NONE; + break; + case Opt_hb_global: + mopt->mount_opt |= OCFS2_MOUNT_HB_GLOBAL; break; case Opt_barrier: if (match_int(&args[0], &option)) { @@ -1477,6 +1491,15 @@ static int ocfs2_parse_options(struct super_block *sb, } } + /* Ensure only one heartbeat mode */ + tmp = mopt->mount_opt & (OCFS2_MOUNT_HB_LOCAL | OCFS2_MOUNT_HB_GLOBAL | + OCFS2_MOUNT_HB_NONE); + if (hweight32(tmp) != 1) { + mlog(ML_ERROR, "Invalid heartbeat mount options\n"); + status = 0; + goto bail; + } + status = 1; bail: @@ -1490,10 +1513,14 @@ static int ocfs2_show_options(struct seq_file *s, struct vfsmount *mnt) unsigned long opts = osb->s_mount_opt; unsigned int local_alloc_megs; - if (opts & OCFS2_MOUNT_HB_LOCAL) - seq_printf(s, ",_netdev,heartbeat=local"); - else - seq_printf(s, ",heartbeat=none"); + if (opts & (OCFS2_MOUNT_HB_LOCAL | OCFS2_MOUNT_HB_GLOBAL)) { + seq_printf(s, ",_netdev"); + if (opts & OCFS2_MOUNT_HB_LOCAL) + seq_printf(s, ",%s", OCFS2_HB_LOCAL); + else + seq_printf(s, ",%s", OCFS2_HB_GLOBAL); + } else + seq_printf(s, ",%s", OCFS2_HB_NONE); if (opts & OCFS2_MOUNT_NOINTR) seq_printf(s, ",nointr"); |