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Commit 7fc1f831 authored by Andrew Perepechko's avatar Andrew Perepechko Committed by Greg Kroah-Hartman
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staging/lustre/llite: extended attribute cache 

This patch implements an extended attribute cache for
a Lustre client. It is organized as a write-through
cache: reads are performed from cache, updates are sent
synchronously to the MDS. An additional inode bit
MDS_INODELOCK_XATTR is added to protect the cache.

Lustre-change: http://review.whamcloud.com/5537
Intel-bug-id: https://jira.hpdd.intel.com/browse/LU-2869


Signed-off-by: default avatarAndrew Perepechko <andrew_perepechko@xyratex.com>
Reviewed-by: default avatarAndreas Dilger <andreas.dilger@intel.com>
Reviewed-by: default avatarJinshan Xiong <jinshan.xiong@intel.com>
Reviewed-by: default avatarOleg Drokin <oleg.drokin@intel.com>
[remove extra GPL notice in original patch as kernel already has one
and it causes checkpatch error. -- Peng Tao]
Signed-off-by: default avatarPeng Tao <bergwolf@gmail.com>
Signed-off-by: default avatarAndreas Dilger <andreas.dilger@intel.com>
Signed-off-by: default avatarGreg Kroah-Hartman <gregkh@linuxfoundation.org>
parent 48d23e61

drivers/staging/lustre/lustre/include/linux/lustre_lite.h

+1 −0
Original line number Diff line number Diff line
@@ -88,6 +88,7 @@ enum { 
	 LPROC_LL_ALLOC_INODE,

	 LPROC_LL_SETXATTR,

	 LPROC_LL_GETXATTR,

	 LPROC_LL_GETXATTR_HITS,

	 LPROC_LL_LISTXATTR,

	 LPROC_LL_REMOVEXATTR,

	 LPROC_LL_INODE_PERM,

drivers/staging/lustre/lustre/include/lustre/lustre_idl.h

+9 −3
Original line number Diff line number Diff line
@@ -1368,7 +1368,7 @@ extern void lustre_swab_ptlrpc_body(struct ptlrpc_body *pb); 
				OBD_CONNECT_EINPROGRESS | \

				OBD_CONNECT_LIGHTWEIGHT | OBD_CONNECT_UMASK | \

				OBD_CONNECT_LVB_TYPE | OBD_CONNECT_LAYOUTLOCK |\

				OBD_CONNECT_PINGLESS)

				OBD_CONNECT_PINGLESS | OBD_CONNECT_MAX_EASIZE)

#define OST_CONNECT_SUPPORTED  (OBD_CONNECT_SRVLOCK | OBD_CONNECT_GRANT | \

				OBD_CONNECT_REQPORTAL | OBD_CONNECT_VERSION | \

				OBD_CONNECT_TRUNCLOCK | OBD_CONNECT_INDEX | \
@@ -1752,7 +1752,9 @@ static inline __u32 lov_mds_md_size(__u16 stripes, __u32 lmm_magic) 
#define OBD_MD_FLCKSPLIT     (0x0000080000000000ULL) /* Check split on server */

#define OBD_MD_FLCROSSREF    (0x0000100000000000ULL) /* Cross-ref case */

#define OBD_MD_FLGETATTRLOCK (0x0000200000000000ULL) /* Get IOEpoch attributes

						      * under lock */

						      * under lock; for xattr

						      * requests means the

						      * client holds the lock */

#define OBD_MD_FLOBJCOUNT    (0x0000400000000000ULL) /* for multiple destroy */



#define OBD_MD_FLRMTLSETFACL (0x0001000000000000ULL) /* lfs lsetfacl case */
@@ -1769,6 +1771,9 @@ static inline __u32 lov_mds_md_size(__u16 stripes, __u32 lmm_magic) 
			  OBD_MD_FLGID   | OBD_MD_FLFLAGS | OBD_MD_FLNLINK | \

			  OBD_MD_FLGENER | OBD_MD_FLRDEV  | OBD_MD_FLGROUP)



#define OBD_MD_FLXATTRLOCKED OBD_MD_FLGETATTRLOCK

#define OBD_MD_FLXATTRALL (OBD_MD_FLXATTR | OBD_MD_FLXATTRLS)



/* don't forget obdo_fid which is way down at the bottom so it can

 * come after the definition of llog_cookie */
@@ -2141,8 +2146,9 @@ extern void lustre_swab_generic_32s (__u32 *val); 
#define MDS_INODELOCK_OPEN   0x000004       /* For opened files */

#define MDS_INODELOCK_LAYOUT 0x000008       /* for layout */

#define MDS_INODELOCK_PERM   0x000010       /* for permission */

#define MDS_INODELOCK_XATTR  0x000020       /* extended attributes */



#define MDS_INODELOCK_MAXSHIFT 4

#define MDS_INODELOCK_MAXSHIFT 5

/* This FULL lock is useful to take on unlink sort of operations */

#define MDS_INODELOCK_FULL ((1<<(MDS_INODELOCK_MAXSHIFT+1))-1)

drivers/staging/lustre/lustre/include/lustre_req_layout.h

+3 −0
Original line number Diff line number Diff line
@@ -230,6 +230,7 @@ extern struct req_format RQF_LDLM_INTENT_GETATTR; 
extern struct req_format RQF_LDLM_INTENT_OPEN;

extern struct req_format RQF_LDLM_INTENT_CREATE;

extern struct req_format RQF_LDLM_INTENT_UNLINK;

extern struct req_format RQF_LDLM_INTENT_GETXATTR;

extern struct req_format RQF_LDLM_INTENT_QUOTA;

extern struct req_format RQF_LDLM_CANCEL;

extern struct req_format RQF_LDLM_CALLBACK;
@@ -279,6 +280,8 @@ extern struct req_msg_field RMF_LAYOUT_INTENT; 
extern struct req_msg_field RMF_MDT_MD;

extern struct req_msg_field RMF_REC_REINT;

extern struct req_msg_field RMF_EADATA;

extern struct req_msg_field RMF_EAVALS;

extern struct req_msg_field RMF_EAVALS_LENS;

extern struct req_msg_field RMF_ACL;

extern struct req_msg_field RMF_LOGCOOKIES;

extern struct req_msg_field RMF_CAPA1;

drivers/staging/lustre/lustre/include/md_object.h

+2 −2
Original line number Diff line number Diff line
@@ -352,8 +352,8 @@ struct md_device_operations { 
	int (*mdo_root_get)(const struct lu_env *env, struct md_device *m,

			    struct lu_fid *f);



	int (*mdo_maxsize_get)(const struct lu_env *env, struct md_device *m,

			       int *md_size, int *cookie_size);

	int (*mdo_maxeasize_get)(const struct lu_env *env, struct md_device *m,

				int *easize);



	int (*mdo_statfs)(const struct lu_env *env, struct md_device *m,

			  struct obd_statfs *sfs);

drivers/staging/lustre/lustre/include/obd.h

+5 −0
Original line number Diff line number Diff line
@@ -1022,6 +1022,7 @@ struct lu_context; 
#define IT_LAYOUT   (1 << 10)

#define IT_QUOTA_DQACQ (1 << 11)

#define IT_QUOTA_CONN  (1 << 12)

#define IT_SETXATTR (1 << 13)



static inline int it_to_lock_mode(struct lookup_intent *it)

{
@@ -1031,6 +1032,10 @@ static inline int it_to_lock_mode(struct lookup_intent *it) 
	else if (it->it_op & (IT_READDIR | IT_GETATTR | IT_OPEN | IT_LOOKUP |

			      IT_LAYOUT))

		return LCK_CR;

	else if (it->it_op &  IT_GETXATTR)

		return LCK_PR;

	else if (it->it_op &  IT_SETXATTR)

		return LCK_PW;



	LASSERTF(0, "Invalid it_op: %d\n", it->it_op);

	return -EINVAL;