#include <linux/blkdev.h>
#include <linux/socket.h>
#include <linux/inet.h>
-#include <linux/parser.h>
+#include <linux/fs_parser.h>
+#include <linux/fs_context.h>
#include <linux/crc32.h>
#include <linux/debugfs.h>
-#include <linux/mount.h>
#include <linux/seq_file.h>
#include <linux/quotaops.h>
#include <linux/signal.h>
unsigned int resv_level;
int dir_resv_level;
char cluster_stack[OCFS2_STACK_LABEL_LEN + 1];
+ bool user_stack;
};
-static int ocfs2_parse_options(struct super_block *sb, char *options,
- struct mount_options *mopt,
- int is_remount);
+static int ocfs2_parse_param(struct fs_context *fc, struct fs_parameter *param);
static int ocfs2_check_set_options(struct super_block *sb,
struct mount_options *options);
static int ocfs2_show_options(struct seq_file *s, struct dentry *root);
static void ocfs2_put_super(struct super_block *sb);
static int ocfs2_mount_volume(struct super_block *sb);
-static int ocfs2_remount(struct super_block *sb, int *flags, char *data);
static void ocfs2_dismount_volume(struct super_block *sb, int mnt_err);
static int ocfs2_initialize_mem_caches(void);
static void ocfs2_free_mem_caches(void);
.evict_inode = ocfs2_evict_inode,
.sync_fs = ocfs2_sync_fs,
.put_super = ocfs2_put_super,
- .remount_fs = ocfs2_remount,
.show_options = ocfs2_show_options,
.quota_read = ocfs2_quota_read,
.quota_write = ocfs2_quota_write,
enum {
Opt_barrier,
- Opt_err_panic,
- Opt_err_ro,
+ Opt_errors,
Opt_intr,
- Opt_nointr,
- Opt_hb_none,
- Opt_hb_local,
- Opt_hb_global,
- Opt_data_ordered,
- Opt_data_writeback,
+ Opt_heartbeat,
+ Opt_data,
Opt_atime_quantum,
Opt_slot,
Opt_commit,
Opt_localflocks,
Opt_stack,
Opt_user_xattr,
- Opt_nouser_xattr,
Opt_inode64,
Opt_acl,
- Opt_noacl,
Opt_usrquota,
Opt_grpquota,
- Opt_coherency_buffered,
- Opt_coherency_full,
+ Opt_coherency,
Opt_resv_level,
Opt_dir_resv_level,
Opt_journal_async_commit,
- Opt_err_cont,
- Opt_err,
};
-static const match_table_t tokens = {
- {Opt_barrier, "barrier=%u"},
- {Opt_err_panic, "errors=panic"},
- {Opt_err_ro, "errors=remount-ro"},
- {Opt_intr, "intr"},
- {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"},
- {Opt_slot, "preferred_slot=%u"},
- {Opt_commit, "commit=%u"},
- {Opt_localalloc, "localalloc=%d"},
- {Opt_localflocks, "localflocks"},
- {Opt_stack, "cluster_stack=%s"},
- {Opt_user_xattr, "user_xattr"},
- {Opt_nouser_xattr, "nouser_xattr"},
- {Opt_inode64, "inode64"},
- {Opt_acl, "acl"},
- {Opt_noacl, "noacl"},
- {Opt_usrquota, "usrquota"},
- {Opt_grpquota, "grpquota"},
- {Opt_coherency_buffered, "coherency=buffered"},
- {Opt_coherency_full, "coherency=full"},
- {Opt_resv_level, "resv_level=%u"},
- {Opt_dir_resv_level, "dir_resv_level=%u"},
- {Opt_journal_async_commit, "journal_async_commit"},
- {Opt_err_cont, "errors=continue"},
- {Opt_err, NULL}
+static const struct constant_table ocfs2_param_errors[] = {
+ {"panic", OCFS2_MOUNT_ERRORS_PANIC},
+ {"remount-ro", OCFS2_MOUNT_ERRORS_ROFS},
+ {"continue", OCFS2_MOUNT_ERRORS_CONT},
+ {}
+};
+
+static const struct constant_table ocfs2_param_heartbeat[] = {
+ {"local", OCFS2_MOUNT_HB_LOCAL},
+ {"none", OCFS2_MOUNT_HB_NONE},
+ {"global", OCFS2_MOUNT_HB_GLOBAL},
+ {}
+};
+
+static const struct constant_table ocfs2_param_data[] = {
+ {"writeback", OCFS2_MOUNT_DATA_WRITEBACK},
+ {"ordered", 0},
+ {}
+};
+
+static const struct constant_table ocfs2_param_coherency[] = {
+ {"buffered", OCFS2_MOUNT_COHERENCY_BUFFERED},
+ {"full", 0},
+ {}
+};
+
+static const struct fs_parameter_spec ocfs2_param_spec[] = {
+ fsparam_u32 ("barrier", Opt_barrier),
+ fsparam_enum ("errors", Opt_errors, ocfs2_param_errors),
+ fsparam_flag_no ("intr", Opt_intr),
+ fsparam_enum ("heartbeat", Opt_heartbeat, ocfs2_param_heartbeat),
+ fsparam_enum ("data", Opt_data, ocfs2_param_data),
+ fsparam_u32 ("atime_quantum", Opt_atime_quantum),
+ fsparam_u32 ("preferred_slot", Opt_slot),
+ fsparam_u32 ("commit", Opt_commit),
+ fsparam_s32 ("localalloc", Opt_localalloc),
+ fsparam_flag ("localflocks", Opt_localflocks),
+ fsparam_string ("cluster_stack", Opt_stack),
+ fsparam_flag_no ("user_xattr", Opt_user_xattr),
+ fsparam_flag ("inode64", Opt_inode64),
+ fsparam_flag_no ("acl", Opt_acl),
+ fsparam_flag ("usrquota", Opt_usrquota),
+ fsparam_flag ("grpquota", Opt_grpquota),
+ fsparam_enum ("coherency", Opt_coherency, ocfs2_param_coherency),
+ fsparam_u32 ("resv_level", Opt_resv_level),
+ fsparam_u32 ("dir_resv_level", Opt_dir_resv_level),
+ fsparam_flag ("journal_async_commit", Opt_journal_async_commit),
+ {}
};
#ifdef CONFIG_DEBUG_FS
return (((unsigned long long)bytes) << bitshift) - trim;
}
-static int ocfs2_remount(struct super_block *sb, int *flags, char *data)
+static int ocfs2_reconfigure(struct fs_context *fc)
{
int incompat_features;
int ret = 0;
- struct mount_options parsed_options;
+ struct mount_options *parsed_options = fc->fs_private;
+ struct super_block *sb = fc->root->d_sb;
struct ocfs2_super *osb = OCFS2_SB(sb);
u32 tmp;
sync_filesystem(sb);
- if (!ocfs2_parse_options(sb, data, &parsed_options, 1) ||
- !ocfs2_check_set_options(sb, &parsed_options)) {
+ if (!ocfs2_check_set_options(sb, parsed_options)) {
ret = -EINVAL;
goto out;
}
tmp = OCFS2_MOUNT_HB_LOCAL | OCFS2_MOUNT_HB_GLOBAL |
OCFS2_MOUNT_HB_NONE;
- if ((osb->s_mount_opt & tmp) != (parsed_options.mount_opt & tmp)) {
+ 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;
}
if ((osb->s_mount_opt & OCFS2_MOUNT_DATA_WRITEBACK) !=
- (parsed_options.mount_opt & OCFS2_MOUNT_DATA_WRITEBACK)) {
+ (parsed_options->mount_opt & OCFS2_MOUNT_DATA_WRITEBACK)) {
ret = -EINVAL;
mlog(ML_ERROR, "Cannot change data mode on remount\n");
goto out;
/* Probably don't want this on remount; it might
* mess with other nodes */
if (!(osb->s_mount_opt & OCFS2_MOUNT_INODE64) &&
- (parsed_options.mount_opt & OCFS2_MOUNT_INODE64)) {
+ (parsed_options->mount_opt & OCFS2_MOUNT_INODE64)) {
ret = -EINVAL;
mlog(ML_ERROR, "Cannot enable inode64 on remount\n");
goto out;
}
/* We're going to/from readonly mode. */
- if ((bool)(*flags & SB_RDONLY) != sb_rdonly(sb)) {
+ if ((bool)(fc->sb_flags & SB_RDONLY) != sb_rdonly(sb)) {
/* Disable quota accounting before remounting RO */
- if (*flags & SB_RDONLY) {
+ if (fc->sb_flags & SB_RDONLY) {
ret = ocfs2_susp_quotas(osb, 0);
if (ret < 0)
goto out;
goto unlock_osb;
}
- if (*flags & SB_RDONLY) {
+ if (fc->sb_flags & SB_RDONLY) {
sb->s_flags |= SB_RDONLY;
osb->osb_flags |= OCFS2_OSB_SOFT_RO;
} else {
sb->s_flags &= ~SB_RDONLY;
osb->osb_flags &= ~OCFS2_OSB_SOFT_RO;
}
- trace_ocfs2_remount(sb->s_flags, osb->osb_flags, *flags);
+ trace_ocfs2_remount(sb->s_flags, osb->osb_flags, fc->sb_flags);
unlock_osb:
spin_unlock(&osb->osb_lock);
/* Enable quota accounting after remounting RW */
- if (!ret && !(*flags & SB_RDONLY)) {
+ if (!ret && !(fc->sb_flags & SB_RDONLY)) {
if (sb_any_quota_suspended(sb))
ret = ocfs2_susp_quotas(osb, 1);
else
if (!ret) {
/* Only save off the new mount options in case of a successful
* remount. */
- osb->s_mount_opt = parsed_options.mount_opt;
- osb->s_atime_quantum = parsed_options.atime_quantum;
- osb->preferred_slot = parsed_options.slot;
- if (parsed_options.commit_interval)
- osb->osb_commit_interval = parsed_options.commit_interval;
+ osb->s_mount_opt = parsed_options->mount_opt;
+ osb->s_atime_quantum = parsed_options->atime_quantum;
+ osb->preferred_slot = parsed_options->slot;
+ if (parsed_options->commit_interval)
+ osb->osb_commit_interval = parsed_options->commit_interval;
if (!ocfs2_is_hard_readonly(osb))
ocfs2_set_journal_params(osb);
}
}
-static int ocfs2_fill_super(struct super_block *sb, void *data, int silent)
+static int ocfs2_fill_super(struct super_block *sb, struct fs_context *fc)
{
struct dentry *root;
int status, sector_size;
- struct mount_options parsed_options;
+ struct mount_options *parsed_options = fc->fs_private;
struct inode *inode = NULL;
struct ocfs2_super *osb = NULL;
struct buffer_head *bh = NULL;
char nodestr[12];
struct ocfs2_blockcheck_stats stats;
- trace_ocfs2_fill_super(sb, data, silent);
-
- if (!ocfs2_parse_options(sb, data, &parsed_options, 0)) {
- status = -EINVAL;
- goto out;
- }
+ trace_ocfs2_fill_super(sb, fc, fc->sb_flags & SB_SILENT);
/* probe for superblock */
status = ocfs2_sb_probe(sb, &bh, §or_size, &stats);
osb = OCFS2_SB(sb);
- if (!ocfs2_check_set_options(sb, &parsed_options)) {
+ if (!ocfs2_check_set_options(sb, parsed_options)) {
status = -EINVAL;
goto out_super;
}
- osb->s_mount_opt = parsed_options.mount_opt;
- osb->s_atime_quantum = parsed_options.atime_quantum;
- osb->preferred_slot = parsed_options.slot;
- osb->osb_commit_interval = parsed_options.commit_interval;
+ osb->s_mount_opt = parsed_options->mount_opt;
+ osb->s_atime_quantum = parsed_options->atime_quantum;
+ osb->preferred_slot = parsed_options->slot;
+ osb->osb_commit_interval = parsed_options->commit_interval;
- ocfs2_la_set_sizes(osb, parsed_options.localalloc_opt);
- osb->osb_resv_level = parsed_options.resv_level;
- osb->osb_dir_resv_level = parsed_options.resv_level;
- if (parsed_options.dir_resv_level == -1)
- osb->osb_dir_resv_level = parsed_options.resv_level;
+ ocfs2_la_set_sizes(osb, parsed_options->localalloc_opt);
+ osb->osb_resv_level = parsed_options->resv_level;
+ osb->osb_dir_resv_level = parsed_options->resv_level;
+ if (parsed_options->dir_resv_level == -1)
+ osb->osb_dir_resv_level = parsed_options->resv_level;
else
- osb->osb_dir_resv_level = parsed_options.dir_resv_level;
+ osb->osb_dir_resv_level = parsed_options->dir_resv_level;
- status = ocfs2_verify_userspace_stack(osb, &parsed_options);
+ status = ocfs2_verify_userspace_stack(osb, parsed_options);
if (status)
goto out_super;
return status;
}
-static struct dentry *ocfs2_mount(struct file_system_type *fs_type,
- int flags,
- const char *dev_name,
- void *data)
+static int ocfs2_get_tree(struct fs_context *fc)
+{
+ return get_tree_bdev(fc, ocfs2_fill_super);
+}
+
+static void ocfs2_free_fc(struct fs_context *fc)
{
- return mount_bdev(fs_type, flags, dev_name, data, ocfs2_fill_super);
+ kfree(fc->fs_private);
+}
+
+static const struct fs_context_operations ocfs2_context_ops = {
+ .parse_param = ocfs2_parse_param,
+ .get_tree = ocfs2_get_tree,
+ .reconfigure = ocfs2_reconfigure,
+ .free = ocfs2_free_fc,
+};
+
+static int ocfs2_init_fs_context(struct fs_context *fc)
+{
+ struct mount_options *mopt;
+
+ mopt = kzalloc(sizeof(struct mount_options), GFP_KERNEL);
+ if (!mopt)
+ return -EINVAL;
+
+ mopt->commit_interval = 0;
+ mopt->mount_opt = OCFS2_MOUNT_NOINTR;
+ mopt->atime_quantum = OCFS2_DEFAULT_ATIME_QUANTUM;
+ mopt->slot = OCFS2_INVALID_SLOT;
+ mopt->localalloc_opt = -1;
+ mopt->cluster_stack[0] = '\0';
+ mopt->resv_level = OCFS2_DEFAULT_RESV_LEVEL;
+ mopt->dir_resv_level = -1;
+
+ fc->fs_private = mopt;
+ fc->ops = &ocfs2_context_ops;
+
+ return 0;
}
static struct file_system_type ocfs2_fs_type = {
.owner = THIS_MODULE,
.name = "ocfs2",
- .mount = ocfs2_mount,
.kill_sb = kill_block_super,
.fs_flags = FS_REQUIRES_DEV|FS_RENAME_DOES_D_MOVE,
- .next = NULL
+ .next = NULL,
+ .init_fs_context = ocfs2_init_fs_context,
+ .parameters = ocfs2_param_spec,
};
MODULE_ALIAS_FS("ocfs2");
static int ocfs2_check_set_options(struct super_block *sb,
struct mount_options *options)
{
+ if (options->user_stack == 0) {
+ u32 tmp;
+
+ /* Ensure only one heartbeat mode */
+ tmp = options->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");
+ return 0;
+ }
+ }
if (options->mount_opt & OCFS2_MOUNT_USRQUOTA &&
!OCFS2_HAS_RO_COMPAT_FEATURE(sb,
OCFS2_FEATURE_RO_COMPAT_USRQUOTA)) {
return 1;
}
-static int ocfs2_parse_options(struct super_block *sb,
- char *options,
- struct mount_options *mopt,
- int is_remount)
+static int ocfs2_parse_param(struct fs_context *fc, struct fs_parameter *param)
{
- int status, user_stack = 0;
- char *p;
- u32 tmp;
- int token, option;
- substring_t args[MAX_OPT_ARGS];
-
- trace_ocfs2_parse_options(is_remount, options ? options : "(none)");
-
- mopt->commit_interval = 0;
- mopt->mount_opt = OCFS2_MOUNT_NOINTR;
- mopt->atime_quantum = OCFS2_DEFAULT_ATIME_QUANTUM;
- mopt->slot = OCFS2_INVALID_SLOT;
- mopt->localalloc_opt = -1;
- mopt->cluster_stack[0] = '\0';
- mopt->resv_level = OCFS2_DEFAULT_RESV_LEVEL;
- mopt->dir_resv_level = -1;
-
- if (!options) {
- status = 1;
- goto bail;
- }
-
- while ((p = strsep(&options, ",")) != NULL) {
- if (!*p)
- continue;
-
- token = match_token(p, tokens, args);
- switch (token) {
- case Opt_hb_local:
- mopt->mount_opt |= OCFS2_MOUNT_HB_LOCAL;
- break;
- case Opt_hb_none:
- 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)) {
- status = 0;
- goto bail;
- }
- if (option)
- mopt->mount_opt |= OCFS2_MOUNT_BARRIER;
- else
- mopt->mount_opt &= ~OCFS2_MOUNT_BARRIER;
- break;
- case Opt_intr:
- mopt->mount_opt &= ~OCFS2_MOUNT_NOINTR;
- break;
- case Opt_nointr:
+ struct fs_parse_result result;
+ int opt;
+ struct mount_options *mopt = fc->fs_private;
+ bool is_remount = (fc->purpose & FS_CONTEXT_FOR_RECONFIGURE);
+
+ trace_ocfs2_parse_options(is_remount, param->key);
+
+ opt = fs_parse(fc, ocfs2_param_spec, param, &result);
+ if (opt < 0)
+ return opt;
+
+ switch (opt) {
+ case Opt_heartbeat:
+ mopt->mount_opt |= result.uint_32;
+ break;
+ case Opt_barrier:
+ if (result.uint_32)
+ mopt->mount_opt |= OCFS2_MOUNT_BARRIER;
+ else
+ mopt->mount_opt &= ~OCFS2_MOUNT_BARRIER;
+ break;
+ case Opt_intr:
+ if (result.negated)
mopt->mount_opt |= OCFS2_MOUNT_NOINTR;
- break;
- case Opt_err_panic:
- mopt->mount_opt &= ~OCFS2_MOUNT_ERRORS_CONT;
- mopt->mount_opt &= ~OCFS2_MOUNT_ERRORS_ROFS;
- mopt->mount_opt |= OCFS2_MOUNT_ERRORS_PANIC;
- break;
- case Opt_err_ro:
- mopt->mount_opt &= ~OCFS2_MOUNT_ERRORS_CONT;
- mopt->mount_opt &= ~OCFS2_MOUNT_ERRORS_PANIC;
- mopt->mount_opt |= OCFS2_MOUNT_ERRORS_ROFS;
- break;
- case Opt_err_cont:
- mopt->mount_opt &= ~OCFS2_MOUNT_ERRORS_ROFS;
- mopt->mount_opt &= ~OCFS2_MOUNT_ERRORS_PANIC;
- mopt->mount_opt |= OCFS2_MOUNT_ERRORS_CONT;
- break;
- case Opt_data_ordered:
- mopt->mount_opt &= ~OCFS2_MOUNT_DATA_WRITEBACK;
- break;
- case Opt_data_writeback:
- mopt->mount_opt |= OCFS2_MOUNT_DATA_WRITEBACK;
- break;
- case Opt_user_xattr:
- mopt->mount_opt &= ~OCFS2_MOUNT_NOUSERXATTR;
- break;
- case Opt_nouser_xattr:
+ else
+ mopt->mount_opt &= ~OCFS2_MOUNT_NOINTR;
+ break;
+ case Opt_errors:
+ mopt->mount_opt &= ~(OCFS2_MOUNT_ERRORS_CONT |
+ OCFS2_MOUNT_ERRORS_ROFS |
+ OCFS2_MOUNT_ERRORS_PANIC);
+ mopt->mount_opt |= result.uint_32;
+ break;
+ case Opt_data:
+ mopt->mount_opt &= ~OCFS2_MOUNT_DATA_WRITEBACK;
+ mopt->mount_opt |= result.uint_32;
+ break;
+ case Opt_user_xattr:
+ if (result.negated)
mopt->mount_opt |= OCFS2_MOUNT_NOUSERXATTR;
- break;
- case Opt_atime_quantum:
- if (match_int(&args[0], &option)) {
- status = 0;
- goto bail;
- }
- if (option >= 0)
- mopt->atime_quantum = option;
- break;
- case Opt_slot:
- if (match_int(&args[0], &option)) {
- status = 0;
- goto bail;
- }
- if (option)
- mopt->slot = (u16)option;
- break;
- case Opt_commit:
- if (match_int(&args[0], &option)) {
- status = 0;
- goto bail;
- }
- if (option < 0)
- return 0;
- if (option == 0)
- option = JBD2_DEFAULT_MAX_COMMIT_AGE;
- mopt->commit_interval = HZ * option;
- break;
- case Opt_localalloc:
- if (match_int(&args[0], &option)) {
- status = 0;
- goto bail;
- }
- if (option >= 0)
- mopt->localalloc_opt = option;
- break;
- case Opt_localflocks:
- /*
- * Changing this during remount could race
- * flock() requests, or "unbalance" existing
- * ones (e.g., a lock is taken in one mode but
- * dropped in the other). If users care enough
- * to flip locking modes during remount, we
- * could add a "local" flag to individual
- * flock structures for proper tracking of
- * state.
- */
- if (!is_remount)
- mopt->mount_opt |= OCFS2_MOUNT_LOCALFLOCKS;
- break;
- case Opt_stack:
- /* Check both that the option we were passed
- * is of the right length and that it is a proper
- * string of the right length.
- */
- if (((args[0].to - args[0].from) !=
- OCFS2_STACK_LABEL_LEN) ||
- (strnlen(args[0].from,
- OCFS2_STACK_LABEL_LEN) !=
- OCFS2_STACK_LABEL_LEN)) {
- mlog(ML_ERROR,
- "Invalid cluster_stack option\n");
- status = 0;
- goto bail;
- }
- memcpy(mopt->cluster_stack, args[0].from,
- OCFS2_STACK_LABEL_LEN);
- mopt->cluster_stack[OCFS2_STACK_LABEL_LEN] = '\0';
- /*
- * Open code the memcmp here as we don't have
- * an osb to pass to
- * ocfs2_userspace_stack().
- */
- if (memcmp(mopt->cluster_stack,
- OCFS2_CLASSIC_CLUSTER_STACK,
- OCFS2_STACK_LABEL_LEN))
- user_stack = 1;
- break;
- case Opt_inode64:
- mopt->mount_opt |= OCFS2_MOUNT_INODE64;
- break;
- case Opt_usrquota:
- mopt->mount_opt |= OCFS2_MOUNT_USRQUOTA;
- break;
- case Opt_grpquota:
- mopt->mount_opt |= OCFS2_MOUNT_GRPQUOTA;
- break;
- case Opt_coherency_buffered:
- mopt->mount_opt |= OCFS2_MOUNT_COHERENCY_BUFFERED;
- break;
- case Opt_coherency_full:
- mopt->mount_opt &= ~OCFS2_MOUNT_COHERENCY_BUFFERED;
- break;
- case Opt_acl:
- mopt->mount_opt |= OCFS2_MOUNT_POSIX_ACL;
- mopt->mount_opt &= ~OCFS2_MOUNT_NO_POSIX_ACL;
- break;
- case Opt_noacl:
+ else
+ mopt->mount_opt &= ~OCFS2_MOUNT_NOUSERXATTR;
+ break;
+ case Opt_atime_quantum:
+ mopt->atime_quantum = result.uint_32;
+ break;
+ case Opt_slot:
+ if (result.uint_32)
+ mopt->slot = (u16)result.uint_32;
+ break;
+ case Opt_commit:
+ if (result.uint_32 == 0)
+ mopt->commit_interval = HZ * JBD2_DEFAULT_MAX_COMMIT_AGE;
+ else
+ mopt->commit_interval = HZ * result.uint_32;
+ break;
+ case Opt_localalloc:
+ if (result.int_32 >= 0)
+ mopt->localalloc_opt = result.int_32;
+ break;
+ case Opt_localflocks:
+ /*
+ * Changing this during remount could race flock() requests, or
+ * "unbalance" existing ones (e.g., a lock is taken in one mode
+ * but dropped in the other). If users care enough to flip
+ * locking modes during remount, we could add a "local" flag to
+ * individual flock structures for proper tracking of state.
+ */
+ if (!is_remount)
+ mopt->mount_opt |= OCFS2_MOUNT_LOCALFLOCKS;
+ break;
+ case Opt_stack:
+ /* Check both that the option we were passed is of the right
+ * length and that it is a proper string of the right length.
+ */
+ if (strlen(param->string) != OCFS2_STACK_LABEL_LEN) {
+ mlog(ML_ERROR, "Invalid cluster_stack option\n");
+ return -EINVAL;
+ }
+ memcpy(mopt->cluster_stack, param->string, OCFS2_STACK_LABEL_LEN);
+ mopt->cluster_stack[OCFS2_STACK_LABEL_LEN] = '\0';
+ /*
+ * Open code the memcmp here as we don't have an osb to pass
+ * to ocfs2_userspace_stack().
+ */
+ if (memcmp(mopt->cluster_stack,
+ OCFS2_CLASSIC_CLUSTER_STACK,
+ OCFS2_STACK_LABEL_LEN))
+ mopt->user_stack = 1;
+ break;
+ case Opt_inode64:
+ mopt->mount_opt |= OCFS2_MOUNT_INODE64;
+ break;
+ case Opt_usrquota:
+ mopt->mount_opt |= OCFS2_MOUNT_USRQUOTA;
+ break;
+ case Opt_grpquota:
+ mopt->mount_opt |= OCFS2_MOUNT_GRPQUOTA;
+ break;
+ case Opt_coherency:
+ mopt->mount_opt &= ~OCFS2_MOUNT_COHERENCY_BUFFERED;
+ mopt->mount_opt |= result.uint_32;
+ break;
+ case Opt_acl:
+ if (result.negated) {
mopt->mount_opt |= OCFS2_MOUNT_NO_POSIX_ACL;
mopt->mount_opt &= ~OCFS2_MOUNT_POSIX_ACL;
+ } else {
+ mopt->mount_opt |= OCFS2_MOUNT_POSIX_ACL;
+ mopt->mount_opt &= ~OCFS2_MOUNT_NO_POSIX_ACL;
+ }
+ break;
+ case Opt_resv_level:
+ if (is_remount)
break;
- case Opt_resv_level:
- if (is_remount)
- break;
- if (match_int(&args[0], &option)) {
- status = 0;
- goto bail;
- }
- if (option >= OCFS2_MIN_RESV_LEVEL &&
- option < OCFS2_MAX_RESV_LEVEL)
- mopt->resv_level = option;
- break;
- case Opt_dir_resv_level:
- if (is_remount)
- break;
- if (match_int(&args[0], &option)) {
- status = 0;
- goto bail;
- }
- if (option >= OCFS2_MIN_RESV_LEVEL &&
- option < OCFS2_MAX_RESV_LEVEL)
- mopt->dir_resv_level = option;
- break;
- case Opt_journal_async_commit:
- mopt->mount_opt |= OCFS2_MOUNT_JOURNAL_ASYNC_COMMIT;
+ if (result.uint_32 >= OCFS2_MIN_RESV_LEVEL &&
+ result.uint_32 < OCFS2_MAX_RESV_LEVEL)
+ mopt->resv_level = result.uint_32;
+ break;
+ case Opt_dir_resv_level:
+ if (is_remount)
break;
- default:
- mlog(ML_ERROR,
- "Unrecognized mount option \"%s\" "
- "or missing value\n", p);
- status = 0;
- goto bail;
- }
- }
-
- if (user_stack == 0) {
- /* 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;
- }
+ if (result.uint_32 >= OCFS2_MIN_RESV_LEVEL &&
+ result.uint_32 < OCFS2_MAX_RESV_LEVEL)
+ mopt->dir_resv_level = result.uint_32;
+ break;
+ case Opt_journal_async_commit:
+ mopt->mount_opt |= OCFS2_MOUNT_JOURNAL_ASYNC_COMMIT;
+ break;
+ default:
+ return -EINVAL;
}
- status = 1;
-
-bail:
- return status;
+ return 0;
}
static int ocfs2_show_options(struct seq_file *s, struct dentry *root)
projects / linux-2.6-microblaze.git / commitdiff