#include <lustre_intent.h>
#include <linux/compat.h>
#include <linux/aio.h>
+#include <linux/parser.h>
#include <lustre_compat.h>
#include <lustre_crypto.h>
#include <range_lock.h>
* -- I am the owner of dir statahead. */
pid_t lli_opendir_pid;
/* directory depth to ROOT */
- unsigned short lli_depth;
+ unsigned short lli_dir_depth;
+ /* directory depth to ancestor whose default LMV is
+ * inherited.
+ */
+ unsigned short lli_inherit_depth;
/* stat will try to access statahead entries or start
* statahead if this flag is set, and this flag will be
* set upon dir open, and cleared when dir is closed,
struct list_head lli_lccs; /* list of ll_cl_context */
};
+#ifndef HAVE_USER_NAMESPACE_ARG
+#define inode_permission(ns, inode, mask) inode_permission(inode, mask)
+#define generic_permission(ns, inode, mask) generic_permission(inode, mask)
+#define simple_setattr(ns, de, iattr) simple_setattr(de, iattr)
+#define ll_inode_permission(ns, inode, mask) ll_inode_permission(inode, mask)
+#ifdef HAVE_INODEOPS_ENHANCED_GETATTR
+#define ll_getattr(ns, path, stat, mask, fl) ll_getattr(path, stat, mask, fl)
+#endif /* HAVE_INODEOPS_ENHANCED_GETATTR */
+#define ll_setattr(ns, de, attr) ll_setattr(de, attr)
+#endif
+
static inline void ll_trunc_sem_init(struct ll_trunc_sem *sem)
{
atomic_set(&sem->ll_trunc_readers, 0);
static inline void trunc_sem_up_write(struct ll_trunc_sem *sem)
{
atomic_set(&sem->ll_trunc_readers, 0);
+ /* match the smp_mb() in wait_var_event()->prepare_to_wait() */
+ smp_mb();
wake_up_var(&sem->ll_trunc_readers);
}
LLIF_UPDATE_ATIME = 4,
/* foreign file/dir can be unlinked unconditionnaly */
LLIF_FOREIGN_REMOVABLE = 5,
- /* setting encryption context in progress */
- LLIF_SET_ENC_CTX = 6,
+ /* Xattr cache is filled */
+ LLIF_XATTR_CACHE_FILLED = 7,
};
int ll_xattr_cache_destroy(struct inode *inode);
+int ll_xattr_cache_empty(struct inode *inode);
int ll_xattr_cache_get(struct inode *inode,
const char *name,
#endif
}
+static inline bool obd_connect_has_name_enc(struct obd_connect_data *data)
+{
+#ifdef HAVE_LUSTRE_CRYPTO
+ return data->ocd_connect_flags & OBD_CONNECT_FLAGS2 &&
+ data->ocd_connect_flags2 & OBD_CONNECT2_ENCRYPT_NAME;
+#else
+ return false;
+#endif
+}
+
+static inline void obd_connect_set_name_enc(struct obd_connect_data *data)
+{
+#ifdef HAVE_LUSTRE_CRYPTO
+ data->ocd_connect_flags2 |= OBD_CONNECT2_ENCRYPT_NAME;
+#endif
+}
+
/*
* Locking to guarantee consistency of non-atomic updates to long long i_size,
* consistency between file size and KMS.
#define LL_HIST_START 12 /* buckets start at 2^12 = 4k */
#define LL_PROCESS_HIST_MAX 10
struct per_process_info {
- pid_t pid;
- struct obd_histogram pp_r_hist;
- struct obd_histogram pp_w_hist;
+ pid_t pid;
+ struct obd_histogram pp_r_hist;
+ struct obd_histogram pp_w_hist;
};
/* pp_extents[LL_PROCESS_HIST_MAX] will hold the combined process info */
struct ll_rw_extents_info {
- struct per_process_info pp_extents[LL_PROCESS_HIST_MAX + 1];
+ ktime_t pp_init;
+ struct per_process_info pp_extents[LL_PROCESS_HIST_MAX + 1];
};
#define LL_OFFSET_HIST_MAX 100
};
/* flags for sbi->ll_flags */
-#define LL_SBI_NOLCK 0x01 /* DLM locking disabled (directio-only) */
-#define LL_SBI_CHECKSUM 0x02 /* checksum each page as it's written */
-#define LL_SBI_FLOCK 0x04
-#define LL_SBI_USER_XATTR 0x08 /* support user xattr */
-#define LL_SBI_ACL 0x10 /* support ACL */
-/* LL_SBI_RMT_CLIENT 0x40 remote client */
-#define LL_SBI_MDS_CAPA 0x80 /* support mds capa, obsolete */
-#define LL_SBI_OSS_CAPA 0x100 /* support oss capa, obsolete */
-#define LL_SBI_LOCALFLOCK 0x200 /* Local flocks support by kernel */
-#define LL_SBI_LRU_RESIZE 0x400 /* lru resize support */
-#define LL_SBI_LAZYSTATFS 0x800 /* lazystatfs mount option */
-/* LL_SBI_SOM_PREVIEW 0x1000 SOM preview mount option, obsolete */
-#define LL_SBI_32BIT_API 0x2000 /* generate 32 bit inodes. */
-#define LL_SBI_64BIT_HASH 0x4000 /* support 64-bits dir hash/offset */
-#define LL_SBI_AGL_ENABLED 0x8000 /* enable agl */
-#define LL_SBI_VERBOSE 0x10000 /* verbose mount/umount */
-#define LL_SBI_LAYOUT_LOCK 0x20000 /* layout lock support */
-#define LL_SBI_USER_FID2PATH 0x40000 /* allow fid2path by unprivileged users */
-#define LL_SBI_XATTR_CACHE 0x80000 /* support for xattr cache */
-#define LL_SBI_NOROOTSQUASH 0x100000 /* do not apply root squash */
-#define LL_SBI_ALWAYS_PING 0x200000 /* always ping even if server
- * suppress_pings */
-#define LL_SBI_FAST_READ 0x400000 /* fast read support */
-#define LL_SBI_FILE_SECCTX 0x800000 /* set file security context at create */
-/* LL_SBI_PIO 0x1000000 parallel IO support, introduced in
- 2.10, abandoned */
-#define LL_SBI_TINY_WRITE 0x2000000 /* tiny write support */
-#define LL_SBI_FILE_HEAT 0x4000000 /* file heat support */
-#define LL_SBI_TEST_DUMMY_ENCRYPTION 0x8000000 /* test dummy encryption */
-#define LL_SBI_ENCRYPT 0x10000000 /* client side encryption */
-#define LL_SBI_FOREIGN_SYMLINK 0x20000000 /* foreign fake-symlink support */
-/* foreign fake-symlink upcall registered */
-#define LL_SBI_FOREIGN_SYMLINK_UPCALL 0x40000000
-#define LL_SBI_PARALLEL_DIO 0x80000000 /* parallel (async) submission of
- RPCs for DIO */
-#define LL_SBI_FLAGS { \
- "nolck", \
- "checksum", \
- "flock", \
- "user_xattr", \
- "acl", \
- "???", \
- "???", \
- "mds_capa", \
- "oss_capa", \
- "flock", \
- "lru_resize", \
- "lazy_statfs", \
- "som", \
- "32bit_api", \
- "64bit_hash", \
- "agl", \
- "verbose", \
- "layout", \
- "user_fid2path",\
- "xattr_cache", \
- "norootsquash", \
- "always_ping", \
- "fast_read", \
- "file_secctx", \
- "pio", \
- "tiny_write", \
- "file_heat", \
- "test_dummy_encryption", \
- "noencrypt", \
- "foreign_symlink", \
- "foreign_symlink_upcall", \
- "parallel_dio", \
-}
+enum ll_sbi_flags {
+ LL_SBI_NOLCK, /* DLM locking disabled directio-only */
+ LL_SBI_CHECKSUM, /* checksum each page as it's written */
+ LL_SBI_LOCALFLOCK, /* local flocks instead of fs-wide */
+ LL_SBI_FLOCK, /* flock enabled */
+ LL_SBI_USER_XATTR, /* support user xattr */
+ LL_SBI_LRU_RESIZE, /* lru resize support */
+ LL_SBI_LAZYSTATFS, /* lazystatfs mount option */
+ LL_SBI_32BIT_API, /* generate 32 bit inodes. */
+ LL_SBI_USER_FID2PATH, /* fid2path by unprivileged users */
+ LL_SBI_VERBOSE, /* verbose mount/umount */
+ LL_SBI_ALWAYS_PING, /* ping even if server suppress_pings */
+ LL_SBI_TEST_DUMMY_ENCRYPTION, /* test dummy encryption */
+ LL_SBI_ENCRYPT, /* client side encryption */
+ LL_SBI_FOREIGN_SYMLINK, /* foreign fake-symlink support */
+ LL_SBI_FOREIGN_SYMLINK_UPCALL, /* foreign fake-symlink upcall set */
+ LL_SBI_NUM_MOUNT_OPT,
+
+ LL_SBI_ACL, /* support ACL */
+ LL_SBI_AGL_ENABLED, /* enable agl */
+ LL_SBI_64BIT_HASH, /* support 64-bits dir hash/offset */
+ LL_SBI_LAYOUT_LOCK, /* layout lock support */
+ LL_SBI_XATTR_CACHE, /* support for xattr cache */
+ LL_SBI_NOROOTSQUASH, /* do not apply root squash */
+ LL_SBI_FAST_READ, /* fast read support */
+ LL_SBI_FILE_SECCTX, /* file security context at create */
+ LL_SBI_TINY_WRITE, /* tiny write support */
+ LL_SBI_FILE_HEAT, /* file heat support */
+ LL_SBI_PARALLEL_DIO, /* parallel (async) O_DIRECT RPCs */
+ LL_SBI_ENCRYPT_NAME, /* name encryption */
+ LL_SBI_NUM_FLAGS
+};
+
+int ll_sbi_flags_seq_show(struct seq_file *m, void *v);
/* This is embedded into llite super-blocks to keep track of connect
* flags (capabilities) supported by all imports given mount is
struct obd_device *ll_dt_obd;
struct dentry *ll_debugfs_entry;
struct lu_fid ll_root_fid; /* root object fid */
+ struct mnt_namespace *ll_mnt_ns;
- int ll_flags;
- unsigned int ll_xattr_cache_enabled:1,
- ll_xattr_cache_set:1, /* already set to 0/1 */
- ll_client_common_fill_super_succeeded:1,
- ll_checksum_set:1;
+ DECLARE_BITMAP(ll_flags, LL_SBI_NUM_FLAGS); /* enum ll_sbi_flags */
+ unsigned int ll_xattr_cache_enabled:1,
+ ll_xattr_cache_set:1, /* already set to 0/1 */
+ ll_client_common_fill_super_succeeded:1,
+ ll_checksum_set:1,
+ ll_inode_cache_enabled:1;
- struct lustre_client_ocd ll_lco;
+ struct lustre_client_ocd ll_lco;
struct lprocfs_stats *ll_stats; /* lprocfs stats counter */
struct lu_site *ll_site;
struct cl_device *ll_cl;
+
/* Statistics */
- struct ll_rw_extents_info ll_rw_extents_info;
- int ll_extent_process_count;
- struct ll_rw_process_info ll_rw_process_info[LL_PROCESS_HIST_MAX];
- unsigned int ll_offset_process_count;
- struct ll_rw_process_info ll_rw_offset_info[LL_OFFSET_HIST_MAX];
- unsigned int ll_rw_offset_entry_count;
- int ll_stats_track_id;
- enum stats_track_type ll_stats_track_type;
- int ll_rw_stats_on;
+ struct ll_rw_extents_info *ll_rw_extents_info;
+ int ll_extent_process_count;
+ unsigned int ll_offset_process_count;
+ struct ll_rw_process_info *ll_rw_process_info;
+ struct ll_rw_process_info *ll_rw_offset_info;
+ ktime_t ll_process_stats_init;
+ unsigned int ll_rw_offset_entry_count;
+ int ll_stats_track_id;
+ enum stats_track_type ll_stats_track_type;
+ int ll_rw_stats_on;
/* metadata stat-ahead */
unsigned int ll_sa_running_max;/* max concurrent
struct file *lrw_file;
pgoff_t lrw_start_idx;
pgoff_t lrw_end_idx;
+ pid_t lrw_user_pid;
/* async worker to handler read */
struct work_struct lrw_readahead_work;
* layout version for verification to OST objects */
__u32 fd_layout_version;
struct pcc_file fd_pcc_file;
+ /* striped directory may read partially if some stripe inaccessible,
+ * -errno is saved here, and will return to user in close().
+ */
+ int fd_partial_readdir_rc;
};
void llite_tunables_unregister(void);
#if BITS_PER_LONG == 32
return 1;
#elif defined(CONFIG_COMPAT)
- if (unlikely(sbi->ll_flags & LL_SBI_32BIT_API))
+ if (unlikely(test_bit(LL_SBI_32BIT_API, sbi->ll_flags)))
return true;
# ifdef CONFIG_X86_X32
return unlikely(in_compat_syscall());
#else
- return unlikely(sbi->ll_flags & LL_SBI_32BIT_API);
+ return unlikely(test_bit(LL_SBI_32BIT_API, sbi->ll_flags));
#endif
}
static inline bool ll_sbi_has_fast_read(struct ll_sb_info *sbi)
{
- return !!(sbi->ll_flags & LL_SBI_FAST_READ);
+ return test_bit(LL_SBI_FAST_READ, sbi->ll_flags);
}
static inline bool ll_sbi_has_tiny_write(struct ll_sb_info *sbi)
{
- return !!(sbi->ll_flags & LL_SBI_TINY_WRITE);
+ return test_bit(LL_SBI_TINY_WRITE, sbi->ll_flags);
}
static inline bool ll_sbi_has_file_heat(struct ll_sb_info *sbi)
{
- return !!(sbi->ll_flags & LL_SBI_FILE_HEAT);
+ return test_bit(LL_SBI_FILE_HEAT, sbi->ll_flags);
}
static inline bool ll_sbi_has_foreign_symlink(struct ll_sb_info *sbi)
{
- return !!(sbi->ll_flags & LL_SBI_FOREIGN_SYMLINK);
+ return test_bit(LL_SBI_FOREIGN_SYMLINK, sbi->ll_flags);
}
static inline bool ll_sbi_has_parallel_dio(struct ll_sb_info *sbi)
{
- return !!(sbi->ll_flags & LL_SBI_PARALLEL_DIO);
+ return test_bit(LL_SBI_PARALLEL_DIO, sbi->ll_flags);
}
void ll_ras_enter(struct file *f, loff_t pos, size_t count);
int ll_debugfs_register_super(struct super_block *sb, const char *name);
void ll_debugfs_unregister_super(struct super_block *sb);
void ll_stats_ops_tally(struct ll_sb_info *sbi, int op, long count);
+void ll_free_rw_stats_info(struct ll_sb_info *sbi);
enum {
LPROC_LL_READ_BYTES,
extern const struct inode_operations ll_dir_inode_operations;
#ifdef HAVE_DIR_CONTEXT
int ll_dir_read(struct inode *inode, __u64 *pos, struct md_op_data *op_data,
- struct dir_context *ctx);
+ struct dir_context *ctx, int *partial_readdir_rc);
#else
int ll_dir_read(struct inode *inode, __u64 *pos, struct md_op_data *op_data,
- void *cookie, filldir_t filldir);
+ void *cookie, filldir_t filldir, int *partial_readdir_rc);
#endif
int ll_get_mdt_idx(struct inode *inode);
int ll_get_mdt_idx_by_fid(struct ll_sb_info *sbi, const struct lu_fid *fid);
struct page *ll_get_dir_page(struct inode *dir, struct md_op_data *op_data,
- __u64 offset);
+ __u64 offset, int *partial_readdir_rc);
void ll_release_page(struct inode *inode, struct page *page, bool remove);
int quotactl_ioctl(struct super_block *sb, struct if_quotactl *qctl);
extern void ll_rw_stats_tally(struct ll_sb_info *sbi, pid_t pid,
struct ll_file_data *file, loff_t pos,
size_t count, int rw);
-#ifdef HAVE_INODEOPS_ENHANCED_GETATTR
-int ll_getattr(const struct path *path, struct kstat *stat,
- u32 request_mask, unsigned int flags);
+#if defined(HAVE_USER_NAMESPACE_ARG) || defined(HAVE_INODEOPS_ENHANCED_GETATTR)
+int ll_getattr(struct user_namespace *mnt_userns, const struct path *path,
+ struct kstat *stat, u32 request_mask, unsigned int flags);
#else
int ll_getattr(struct vfsmount *mnt, struct dentry *de, struct kstat *stat);
-#endif
+#endif /* HAVE_USER_NAMESPACE_ARG */
int ll_getattr_dentry(struct dentry *de, struct kstat *stat, u32 request_mask,
unsigned int flags, bool foreign);
#ifdef CONFIG_LUSTRE_FS_POSIX_ACL
-struct posix_acl *ll_get_acl(struct inode *inode, int type);
-int ll_set_acl(struct inode *inode, struct posix_acl *acl, int type);
+struct posix_acl *ll_get_acl(struct inode *inode, int type
+#ifdef HAVE_GET_ACL_RCU_ARG
+ , bool rcu
+#endif /* HAVE_GET_ACL_RCU_ARG */
+ );
+int ll_set_acl(struct user_namespace *mnt_userns, struct inode *inode,
+ struct posix_acl *acl, int type);
#else /* !CONFIG_LUSTRE_FS_POSIX_ACL */
#define ll_get_acl NULL
#define ll_set_acl NULL
}
int ll_migrate(struct inode *parent, struct file *file,
- struct lmv_user_md *lum, const char *name);
+ struct lmv_user_md *lum, const char *name, __u32 flags);
int ll_get_fid_by_name(struct inode *parent, const char *name,
int namelen, struct lu_fid *fid, struct inode **inode);
-int ll_inode_permission(struct inode *inode, int mask);
+int ll_inode_permission(struct user_namespace *mnt_userns, struct inode *inode,
+ int mask);
int ll_ioctl_check_project(struct inode *inode, __u32 xflags, __u32 projid);
int ll_ioctl_fsgetxattr(struct inode *inode, unsigned int cmd,
unsigned long arg);
struct ptlrpc_request **request);
int ll_dir_setstripe(struct inode *inode, struct lov_user_md *lump,
int set_default);
+int ll_dir_get_default_layout(struct inode *inode, void **plmm, int *plmm_size,
+ struct ptlrpc_request **request, u64 valid,
+ enum get_default_layout_type type);
int ll_dir_getstripe_default(struct inode *inode, void **lmmp,
int *lmm_size, struct ptlrpc_request **request,
struct ptlrpc_request **root_request, u64 valid);
struct inode *ll_inode_from_resource_lock(struct ldlm_lock *lock);
void ll_dir_clear_lsm_md(struct inode *inode);
void ll_clear_inode(struct inode *inode);
+int volatile_ref_file(const char *volatile_name, int volatile_len,
+ struct file **ref_file);
int ll_setattr_raw(struct dentry *dentry, struct iattr *attr,
enum op_xvalid xvalid, bool hsm_import);
-int ll_setattr(struct dentry *de, struct iattr *attr);
+int ll_setattr(struct user_namespace *mnt_userns, struct dentry *de,
+ struct iattr *attr);
int ll_statfs(struct dentry *de, struct kstatfs *sfs);
int ll_statfs_internal(struct ll_sb_info *sbi, struct obd_statfs *osfs,
u32 flags);
void ll_umount_begin(struct super_block *sb);
int ll_remount_fs(struct super_block *sb, int *flags, char *data);
int ll_show_options(struct seq_file *seq, struct dentry *dentry);
-void ll_dirty_page_discard_warn(struct page *page, int ioret);
+void ll_dirty_page_discard_warn(struct inode *inode, int ioret);
int ll_prep_inode(struct inode **inode, struct req_capsule *pill,
struct super_block *sb, struct lookup_intent *it);
int ll_obd_statfs(struct inode *inode, void __user *arg);
struct cl_io *lcc_io;
struct cl_page *lcc_page;
enum lcc_type lcc_type;
- /**
- * Get encryption context operation in progress,
- * allow getxattr of LL_XATTR_NAME_ENCRYPTION_CONTEXT xattr
- */
- unsigned lcc_getencctx:1;
};
struct ll_thread_info {
static inline bool ll_dir_striped(struct inode *inode)
{
+ struct ll_inode_info *lli;
+ bool rc;
+
LASSERT(inode);
- return S_ISDIR(inode->i_mode) &&
- lmv_dir_striped(ll_i2info(inode)->lli_lsm_md);
+ if (!S_ISDIR(inode->i_mode))
+ return false;
+
+ lli = ll_i2info(inode);
+ if (!lli->lli_lsm_md)
+ return false;
+
+ down_read(&lli->lli_lsm_sem);
+ rc = lmv_dir_striped(lli->lli_lsm_md);
+ up_read(&lli->lli_lsm_sem);
+
+ return rc;
}
static inline loff_t ll_file_maxbytes(struct inode *inode)
#define XATTR_ACL_DEFAULT_T 5
#define XATTR_LUSTRE_T 6
#define XATTR_OTHER_T 7
+#define XATTR_ENCRYPTION_T 9
ssize_t ll_listxattr(struct dentry *dentry, char *buffer, size_t size);
int ll_xattr_list(struct inode *inode, const char *name, int type,
LASSERT(fd != NULL);
return ((fd->fd_flags & LL_FILE_IGNORE_LOCK) ||
- (ll_i2sbi(inode)->ll_flags & LL_SBI_NOLCK));
+ test_bit(LL_SBI_NOLCK, ll_i2sbi(inode)->ll_flags));
}
static inline void ll_set_lock_data(struct obd_export *exp, struct inode *inode,
*/
struct ll_digest_filename {
struct lu_fid ldf_fid;
- char ldf_excerpt[LLCRYPT_FNAME_DIGEST_SIZE];
+ char ldf_excerpt[LL_CRYPTO_BLOCK_SIZE];
};
int ll_setup_filename(struct inode *dir, const struct qstr *iname,
struct llcrypt_str *iname, struct llcrypt_str *oname,
struct lu_fid *fid);
int ll_revalidate_d_crypto(struct dentry *dentry, unsigned int flags);
+int ll_file_open_encrypt(struct inode *inode, struct file *filp);
+static inline char *xattr_for_enc(struct inode *inode)
+{
+ if (ll_sbi_has_name_encrypt(ll_i2sbi(inode)))
+ return LL_XATTR_NAME_ENCRYPTION_CONTEXT;
+
+ return LL_XATTR_NAME_ENCRYPTION_CONTEXT_OLD;
+}
#ifdef HAVE_LUSTRE_CRYPTO
extern const struct llcrypt_operations lustre_cryptops;
#endif
git://git.whamcloud.com / fs / lustre-release.git / blobdiff