diff options
Diffstat (limited to 'include')
-rw-r--r-- | include/linux/ceph/libceph.h | 5 | ||||
-rw-r--r-- | include/linux/fs.h | 4 | ||||
-rw-r--r-- | include/linux/fs_context.h | 32 | ||||
-rw-r--r-- | include/linux/fs_parser.h | 101 | ||||
-rw-r--r-- | include/linux/ramfs.h | 4 | ||||
-rw-r--r-- | include/linux/shmem_fs.h | 3 |
6 files changed, 78 insertions, 71 deletions
diff --git a/include/linux/ceph/libceph.h b/include/linux/ceph/libceph.h index 8fe9b80e80a5..ec73ebc4827d 100644 --- a/include/linux/ceph/libceph.h +++ b/include/linux/ceph/libceph.h @@ -281,11 +281,12 @@ extern int ceph_check_fsid(struct ceph_client *client, struct ceph_fsid *fsid); extern void *ceph_kvmalloc(size_t size, gfp_t flags); struct fs_parameter; +struct fc_log; struct ceph_options *ceph_alloc_options(void); int ceph_parse_mon_ips(const char *buf, size_t len, struct ceph_options *opt, - struct fs_context *fc); + struct fc_log *l); int ceph_parse_param(struct fs_parameter *param, struct ceph_options *opt, - struct fs_context *fc); + struct fc_log *l); int ceph_print_client_options(struct seq_file *m, struct ceph_client *client, bool show_all); extern void ceph_destroy_options(struct ceph_options *opt); diff --git a/include/linux/fs.h b/include/linux/fs.h index 320d51b24325..3cd4fe6b845e 100644 --- a/include/linux/fs.h +++ b/include/linux/fs.h @@ -67,7 +67,7 @@ struct fscrypt_operations; struct fsverity_info; struct fsverity_operations; struct fs_context; -struct fs_parameter_description; +struct fs_parameter_spec; extern void __init inode_init(void); extern void __init inode_init_early(void); @@ -2235,7 +2235,7 @@ struct file_system_type { #define FS_DISALLOW_NOTIFY_PERM 16 /* Disable fanotify permission events */ #define FS_RENAME_DOES_D_MOVE 32768 /* FS will handle d_move() during rename() internally. */ int (*init_fs_context)(struct fs_context *); - const struct fs_parameter_description *parameters; + const struct fs_parameter_spec *parameters; struct dentry *(*mount) (struct file_system_type *, int, const char *, void *); void (*kill_sb) (struct super_block *); diff --git a/include/linux/fs_context.h b/include/linux/fs_context.h index e5c14e2c53d3..e6c3e4c61dad 100644 --- a/include/linux/fs_context.h +++ b/include/linux/fs_context.h @@ -54,7 +54,6 @@ enum fs_value_type { fs_value_is_string, /* Value is a string */ fs_value_is_blob, /* Value is a binary blob */ fs_value_is_filename, /* Value is a filename* + dirfd */ - fs_value_is_filename_empty, /* Value is a filename* + dirfd + AT_EMPTY_PATH */ fs_value_is_file, /* Value is a file* */ }; @@ -74,6 +73,11 @@ struct fs_parameter { int dirfd; }; +struct p_log { + const char *prefix; + struct fc_log *log; +}; + /* * Filesystem context for holding the parameters used in the creation or * reconfiguration of a superblock. @@ -93,7 +97,7 @@ struct fs_context { struct user_namespace *user_ns; /* The user namespace for this mount */ struct net *net_ns; /* The network namespace for this mount */ const struct cred *cred; /* The mounter's credentials */ - struct fc_log *log; /* Logging buffer */ + struct p_log log; /* Logging buffer */ const char *source; /* The source name (eg. dev path) */ void *security; /* Linux S&M options */ void *s_fs_info; /* Proposed s_fs_info */ @@ -182,9 +186,13 @@ struct fc_log { char *buffer[8]; }; -extern __attribute__((format(printf, 2, 3))) -void logfc(struct fs_context *fc, const char *fmt, ...); +extern __attribute__((format(printf, 4, 5))) +void logfc(struct fc_log *log, const char *prefix, char level, const char *fmt, ...); +#define __logfc(fc, l, fmt, ...) logfc((fc)->log.log, NULL, \ + l, fmt, ## __VA_ARGS__) +#define __plog(p, l, fmt, ...) logfc((p)->log, (p)->prefix, \ + l, fmt, ## __VA_ARGS__) /** * infof - Store supplementary informational message * @fc: The context in which to log the informational message @@ -193,7 +201,9 @@ void logfc(struct fs_context *fc, const char *fmt, ...); * Store the supplementary informational message for the process if the process * has enabled the facility. */ -#define infof(fc, fmt, ...) ({ logfc(fc, "i "fmt, ## __VA_ARGS__); }) +#define infof(fc, fmt, ...) __logfc(fc, 'i', fmt, ## __VA_ARGS__) +#define info_plog(p, fmt, ...) __plog(p, 'i', fmt, ## __VA_ARGS__) +#define infofc(p, fmt, ...) __plog((&(fc)->log), 'i', fmt, ## __VA_ARGS__) /** * warnf - Store supplementary warning message @@ -203,7 +213,9 @@ void logfc(struct fs_context *fc, const char *fmt, ...); * Store the supplementary warning message for the process if the process has * enabled the facility. */ -#define warnf(fc, fmt, ...) ({ logfc(fc, "w "fmt, ## __VA_ARGS__); }) +#define warnf(fc, fmt, ...) __logfc(fc, 'w', fmt, ## __VA_ARGS__) +#define warn_plog(p, fmt, ...) __plog(p, 'w', fmt, ## __VA_ARGS__) +#define warnfc(fc, fmt, ...) __plog((&(fc)->log), 'w', fmt, ## __VA_ARGS__) /** * errorf - Store supplementary error message @@ -213,7 +225,9 @@ void logfc(struct fs_context *fc, const char *fmt, ...); * Store the supplementary error message for the process if the process has * enabled the facility. */ -#define errorf(fc, fmt, ...) ({ logfc(fc, "e "fmt, ## __VA_ARGS__); }) +#define errorf(fc, fmt, ...) __logfc(fc, 'e', fmt, ## __VA_ARGS__) +#define error_plog(p, fmt, ...) __plog(p, 'e', fmt, ## __VA_ARGS__) +#define errorfc(fc, fmt, ...) __plog((&(fc)->log), 'e', fmt, ## __VA_ARGS__) /** * invalf - Store supplementary invalid argument error message @@ -223,6 +237,8 @@ void logfc(struct fs_context *fc, const char *fmt, ...); * Store the supplementary error message for the process if the process has * enabled the facility and return -EINVAL. */ -#define invalf(fc, fmt, ...) ({ errorf(fc, fmt, ## __VA_ARGS__); -EINVAL; }) +#define invalf(fc, fmt, ...) (errorf(fc, fmt, ## __VA_ARGS__), -EINVAL) +#define inval_plog(p, fmt, ...) (error_plog(p, fmt, ## __VA_ARGS__), -EINVAL) +#define invalfc(fc, fmt, ...) (errorfc(fc, fmt, ## __VA_ARGS__), -EINVAL) #endif /* _LINUX_FS_CONTEXT_H */ diff --git a/include/linux/fs_parser.h b/include/linux/fs_parser.h index dee140db6240..2eab6d5f6736 100644 --- a/include/linux/fs_parser.h +++ b/include/linux/fs_parser.h @@ -17,26 +17,18 @@ struct constant_table { int value; }; +struct fs_parameter_spec; +struct fs_parse_result; +typedef int fs_param_type(struct p_log *, + const struct fs_parameter_spec *, + struct fs_parameter *, + struct fs_parse_result *); /* * The type of parameter expected. */ -enum fs_parameter_type { - __fs_param_wasnt_defined, - fs_param_is_flag, - fs_param_is_bool, - fs_param_is_u32, - fs_param_is_u32_octal, - fs_param_is_u32_hex, - fs_param_is_s32, - fs_param_is_u64, - fs_param_is_enum, - fs_param_is_string, - fs_param_is_blob, - fs_param_is_blockdev, - fs_param_is_path, - fs_param_is_fd, - nr__fs_parameter_type, -}; +fs_param_type fs_param_is_bool, fs_param_is_u32, fs_param_is_s32, fs_param_is_u64, + fs_param_is_enum, fs_param_is_string, fs_param_is_blob, fs_param_is_blockdev, + fs_param_is_path, fs_param_is_fd; /* * Specification of the type of value a parameter wants. @@ -46,25 +38,13 @@ enum fs_parameter_type { */ struct fs_parameter_spec { const char *name; + fs_param_type *type; /* The desired parameter type */ u8 opt; /* Option number (returned by fs_parse()) */ - enum fs_parameter_type type:8; /* The desired parameter type */ unsigned short flags; -#define fs_param_v_optional 0x0001 /* The value is optional */ #define fs_param_neg_with_no 0x0002 /* "noxxx" is negative param */ #define fs_param_neg_with_empty 0x0004 /* "xxx=" is negative param */ #define fs_param_deprecated 0x0008 /* The param is deprecated */ -}; - -struct fs_parameter_enum { - u8 opt; /* Option number (as fs_parameter_spec::opt) */ - char name[14]; - u8 value; -}; - -struct fs_parameter_description { - const char name[16]; /* Name for logging purposes */ - const struct fs_parameter_spec *specs; /* List of param specifications */ - const struct fs_parameter_enum *enums; /* Enum values */ + const void *data; }; /* @@ -72,7 +52,6 @@ struct fs_parameter_description { */ struct fs_parse_result { bool negated; /* T if param was "noxxx" */ - bool has_value; /* T if value supplied to param */ union { bool boolean; /* For spec_bool */ int int_32; /* For spec_s32/spec_enum */ @@ -81,28 +60,37 @@ struct fs_parse_result { }; }; -extern int fs_parse(struct fs_context *fc, - const struct fs_parameter_description *desc, +extern int __fs_parse(struct p_log *log, + const struct fs_parameter_spec *desc, struct fs_parameter *value, struct fs_parse_result *result); + +static inline int fs_parse(struct fs_context *fc, + const struct fs_parameter_spec *desc, + struct fs_parameter *param, + struct fs_parse_result *result) +{ + return __fs_parse(&fc->log, desc, param, result); +} + extern int fs_lookup_param(struct fs_context *fc, struct fs_parameter *param, bool want_bdev, struct path *_path); -extern int __lookup_constant(const struct constant_table tbl[], size_t tbl_size, - const char *name, int not_found); -#define lookup_constant(t, n, nf) __lookup_constant(t, ARRAY_SIZE(t), (n), (nf)) +extern int lookup_constant(const struct constant_table tbl[], const char *name, int not_found); #ifdef CONFIG_VALIDATE_FS_PARSER extern bool validate_constant_table(const struct constant_table *tbl, size_t tbl_size, int low, int high, int special); -extern bool fs_validate_description(const struct fs_parameter_description *desc); +extern bool fs_validate_description(const char *name, + const struct fs_parameter_spec *desc); #else static inline bool validate_constant_table(const struct constant_table *tbl, size_t tbl_size, int low, int high, int special) { return true; } -static inline bool fs_validate_description(const struct fs_parameter_description *desc) +static inline bool fs_validate_description(const char *name, + const struct fs_parameter_spec *desc) { return true; } #endif @@ -115,33 +103,32 @@ static inline bool fs_validate_description(const struct fs_parameter_description * work, but any such case is probably a sign that new helper is needed. * Helpers will remain stable; low-level implementation may change. */ -#define __fsparam(TYPE, NAME, OPT, FLAGS) \ +#define __fsparam(TYPE, NAME, OPT, FLAGS, DATA) \ { \ .name = NAME, \ .opt = OPT, \ .type = TYPE, \ - .flags = FLAGS \ + .flags = FLAGS, \ + .data = DATA \ } -#define fsparam_flag(NAME, OPT) __fsparam(fs_param_is_flag, NAME, OPT, 0) +#define fsparam_flag(NAME, OPT) __fsparam(NULL, NAME, OPT, 0, NULL) #define fsparam_flag_no(NAME, OPT) \ - __fsparam(fs_param_is_flag, NAME, OPT, \ - fs_param_neg_with_no) -#define fsparam_bool(NAME, OPT) __fsparam(fs_param_is_bool, NAME, OPT, 0) -#define fsparam_u32(NAME, OPT) __fsparam(fs_param_is_u32, NAME, OPT, 0) + __fsparam(NULL, NAME, OPT, fs_param_neg_with_no, NULL) +#define fsparam_bool(NAME, OPT) __fsparam(fs_param_is_bool, NAME, OPT, 0, NULL) +#define fsparam_u32(NAME, OPT) __fsparam(fs_param_is_u32, NAME, OPT, 0, NULL) #define fsparam_u32oct(NAME, OPT) \ - __fsparam(fs_param_is_u32_octal, NAME, OPT, 0) + __fsparam(fs_param_is_u32, NAME, OPT, 0, (void *)8) #define fsparam_u32hex(NAME, OPT) \ - __fsparam(fs_param_is_u32_hex, NAME, OPT, 0) -#define fsparam_s32(NAME, OPT) __fsparam(fs_param_is_s32, NAME, OPT, 0) -#define fsparam_u64(NAME, OPT) __fsparam(fs_param_is_u64, NAME, OPT, 0) -#define fsparam_enum(NAME, OPT) __fsparam(fs_param_is_enum, NAME, OPT, 0) + __fsparam(fs_param_is_u32_hex, NAME, OPT, 0, (void *16)) +#define fsparam_s32(NAME, OPT) __fsparam(fs_param_is_s32, NAME, OPT, 0, NULL) +#define fsparam_u64(NAME, OPT) __fsparam(fs_param_is_u64, NAME, OPT, 0, NULL) +#define fsparam_enum(NAME, OPT, array) __fsparam(fs_param_is_enum, NAME, OPT, 0, array) #define fsparam_string(NAME, OPT) \ - __fsparam(fs_param_is_string, NAME, OPT, 0) -#define fsparam_blob(NAME, OPT) __fsparam(fs_param_is_blob, NAME, OPT, 0) -#define fsparam_bdev(NAME, OPT) __fsparam(fs_param_is_blockdev, NAME, OPT, 0) -#define fsparam_path(NAME, OPT) __fsparam(fs_param_is_path, NAME, OPT, 0) -#define fsparam_fd(NAME, OPT) __fsparam(fs_param_is_fd, NAME, OPT, 0) - + __fsparam(fs_param_is_string, NAME, OPT, 0, NULL) +#define fsparam_blob(NAME, OPT) __fsparam(fs_param_is_blob, NAME, OPT, 0, NULL) +#define fsparam_bdev(NAME, OPT) __fsparam(fs_param_is_blockdev, NAME, OPT, 0, NULL) +#define fsparam_path(NAME, OPT) __fsparam(fs_param_is_path, NAME, OPT, 0, NULL) +#define fsparam_fd(NAME, OPT) __fsparam(fs_param_is_fd, NAME, OPT, 0, NULL) #endif /* _LINUX_FS_PARSER_H */ diff --git a/include/linux/ramfs.h b/include/linux/ramfs.h index b806a0ff6554..917528d102c4 100644 --- a/include/linux/ramfs.h +++ b/include/linux/ramfs.h @@ -2,6 +2,8 @@ #ifndef _LINUX_RAMFS_H #define _LINUX_RAMFS_H +#include <linux/fs_parser.h> // bleh... + struct inode *ramfs_get_inode(struct super_block *sb, const struct inode *dir, umode_t mode, dev_t dev); extern int ramfs_init_fs_context(struct fs_context *fc); @@ -16,7 +18,7 @@ ramfs_nommu_expand_for_mapping(struct inode *inode, size_t newsize) extern int ramfs_nommu_expand_for_mapping(struct inode *inode, size_t newsize); #endif -extern const struct fs_parameter_description ramfs_fs_parameters; +extern const struct fs_parameter_spec ramfs_fs_parameters[]; extern const struct file_operations ramfs_file_operations; extern const struct vm_operations_struct generic_file_vm_ops; diff --git a/include/linux/shmem_fs.h b/include/linux/shmem_fs.h index de8e4b71e3ba..d56fefef8905 100644 --- a/include/linux/shmem_fs.h +++ b/include/linux/shmem_fs.h @@ -8,6 +8,7 @@ #include <linux/pagemap.h> #include <linux/percpu_counter.h> #include <linux/xattr.h> +#include <linux/fs_parser.h> /* inode in-kernel data */ @@ -49,7 +50,7 @@ static inline struct shmem_inode_info *SHMEM_I(struct inode *inode) /* * Functions in mm/shmem.c called directly from elsewhere: */ -extern const struct fs_parameter_description shmem_fs_parameters; +extern const struct fs_parameter_spec shmem_fs_parameters[]; extern int shmem_init(void); extern int shmem_init_fs_context(struct fs_context *fc); extern struct file *shmem_file_setup(const char *name, |