diff options
Diffstat (limited to 'fs/gfs2/super.c')
| -rw-r--r-- | fs/gfs2/super.c | 69 |
1 files changed, 65 insertions, 4 deletions
diff --git a/fs/gfs2/super.c b/fs/gfs2/super.c index e7b24d59d4ff..3fee2fd3ae43 100644 --- a/fs/gfs2/super.c +++ b/fs/gfs2/super.c @@ -70,6 +70,9 @@ enum { Opt_commit, Opt_err_withdraw, Opt_err_panic, + Opt_statfs_quantum, + Opt_statfs_percent, + Opt_quota_quantum, Opt_error, }; @@ -101,6 +104,9 @@ static const match_table_t tokens = { {Opt_commit, "commit=%d"}, {Opt_err_withdraw, "errors=withdraw"}, {Opt_err_panic, "errors=panic"}, + {Opt_statfs_quantum, "statfs_quantum=%d"}, + {Opt_statfs_percent, "statfs_percent=%d"}, + {Opt_quota_quantum, "quota_quantum=%d"}, {Opt_error, NULL} }; @@ -214,6 +220,28 @@ int gfs2_mount_args(struct gfs2_args *args, char *options) return rv ? rv : -EINVAL; } break; + case Opt_statfs_quantum: + rv = match_int(&tmp[0], &args->ar_statfs_quantum); + if (rv || args->ar_statfs_quantum < 0) { + printk(KERN_WARNING "GFS2: statfs_quantum mount option requires a non-negative numeric argument\n"); + return rv ? rv : -EINVAL; + } + break; + case Opt_quota_quantum: + rv = match_int(&tmp[0], &args->ar_quota_quantum); + if (rv || args->ar_quota_quantum <= 0) { + printk(KERN_WARNING "GFS2: quota_quantum mount option requires a positive numeric argument\n"); + return rv ? rv : -EINVAL; + } + break; + case Opt_statfs_percent: + rv = match_int(&tmp[0], &args->ar_statfs_percent); + if (rv || args->ar_statfs_percent < 0 || + args->ar_statfs_percent > 100) { + printk(KERN_WARNING "statfs_percent mount option requires a numeric argument between 0 and 100\n"); + return rv ? rv : -EINVAL; + } + break; case Opt_err_withdraw: args->ar_errors = GFS2_ERRORS_WITHDRAW; break; @@ -442,7 +470,9 @@ void gfs2_statfs_change(struct gfs2_sbd *sdp, s64 total, s64 free, { struct gfs2_inode *l_ip = GFS2_I(sdp->sd_sc_inode); struct gfs2_statfs_change_host *l_sc = &sdp->sd_statfs_local; + struct gfs2_statfs_change_host *m_sc = &sdp->sd_statfs_master; struct buffer_head *l_bh; + int percent, sync_percent; int error; error = gfs2_meta_inode_buffer(l_ip, &l_bh); @@ -456,9 +486,17 @@ void gfs2_statfs_change(struct gfs2_sbd *sdp, s64 total, s64 free, l_sc->sc_free += free; l_sc->sc_dinodes += dinodes; gfs2_statfs_change_out(l_sc, l_bh->b_data + sizeof(struct gfs2_dinode)); + if (m_sc->sc_free) + percent = (100 * l_sc->sc_free) / m_sc->sc_free; + else + percent = 100; spin_unlock(&sdp->sd_statfs_spin); brelse(l_bh); + sync_percent = sdp->sd_args.ar_statfs_percent; + if (sync_percent && (percent >= sync_percent || + percent <= -sync_percent)) + gfs2_wake_up_statfs(sdp); } void update_statfs(struct gfs2_sbd *sdp, struct buffer_head *m_bh, @@ -522,6 +560,7 @@ int gfs2_statfs_sync(struct super_block *sb, int type) goto out_bh2; update_statfs(sdp, m_bh, l_bh); + sdp->sd_statfs_force_sync = 0; gfs2_trans_end(sdp); @@ -1062,6 +1101,11 @@ static int gfs2_remount_fs(struct super_block *sb, int *flags, char *data) spin_lock(>->gt_spin); args.ar_commit = gt->gt_log_flush_secs; + args.ar_quota_quantum = gt->gt_quota_quantum; + if (gt->gt_statfs_slow) + args.ar_statfs_quantum = 0; + else + args.ar_statfs_quantum = gt->gt_statfs_quantum; spin_unlock(>->gt_spin); error = gfs2_mount_args(&args, data); if (error) @@ -1100,6 +1144,15 @@ static int gfs2_remount_fs(struct super_block *sb, int *flags, char *data) sb->s_flags &= ~MS_POSIXACL; spin_lock(>->gt_spin); gt->gt_log_flush_secs = args.ar_commit; + gt->gt_quota_quantum = args.ar_quota_quantum; + if (args.ar_statfs_quantum) { + gt->gt_statfs_slow = 0; + gt->gt_statfs_quantum = args.ar_statfs_quantum; + } + else { + gt->gt_statfs_slow = 1; + gt->gt_statfs_quantum = 30; + } spin_unlock(>->gt_spin); gfs2_online_uevent(sdp); @@ -1180,7 +1233,7 @@ static int gfs2_show_options(struct seq_file *s, struct vfsmount *mnt) { struct gfs2_sbd *sdp = mnt->mnt_sb->s_fs_info; struct gfs2_args *args = &sdp->sd_args; - int lfsecs; + int val; if (is_ancestor(mnt->mnt_root, sdp->sd_master_dir)) seq_printf(s, ",meta"); @@ -1241,9 +1294,17 @@ static int gfs2_show_options(struct seq_file *s, struct vfsmount *mnt) } if (args->ar_discard) seq_printf(s, ",discard"); - lfsecs = sdp->sd_tune.gt_log_flush_secs; - if (lfsecs != 60) - seq_printf(s, ",commit=%d", lfsecs); + val = sdp->sd_tune.gt_log_flush_secs; + if (val != 60) + seq_printf(s, ",commit=%d", val); + val = sdp->sd_tune.gt_statfs_quantum; + if (val != 30) + seq_printf(s, ",statfs_quantum=%d", val); + val = sdp->sd_tune.gt_quota_quantum; + if (val != 60) + seq_printf(s, ",quota_quantum=%d", val); + if (args->ar_statfs_percent) + seq_printf(s, ",statfs_percent=%d", args->ar_statfs_percent); if (args->ar_errors != GFS2_ERRORS_DEFAULT) { const char *state; |