Commit af8cb8aa authored by Linus Torvalds's avatar Linus Torvalds
Browse files

Merge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/ryusuke/nilfs2 

* 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/ryusuke/nilfs2: (21 commits)
  fs/Kconfig: move nilfs2 outside misc filesystems
  nilfs2: convert nilfs_bmap_lookup to an inline function
  nilfs2: allow btree code to directly call dat operations
  nilfs2: add update functions of virtual block address to dat
  nilfs2: remove individual gfp constants for each metadata file
  nilfs2: stop zero-fill of btree path just before free it
  nilfs2: remove unused btree argument from btree functions
  nilfs2: remove nilfs_dat_abort_start and nilfs_dat_abort_free
  nilfs2: shorten freeze period due to GC in write operation v3
  nilfs2: add more check routines in mount process
  nilfs2: An unassigned variable is assigned to a never used structure member
  nilfs2: use GFP_NOIO for bio_alloc instead of GFP_NOWAIT
  nilfs2: stop using periodic write_super callback
  nilfs2: clean up nilfs_write_super
  nilfs2: fix disorder of nilfs_write_super in nilfs_sync_fs
  nilfs2: remove redundant super block commit
  nilfs2: implement nilfs_show_options to display mount options in /proc/mounts
  nilfs2: always lookup disk block address before reading metadata block
  nilfs2: use semaphore to protect pointer to a writable FS-instance
  nilfs2: fix format string compile warning (ino_t)
  ...
parents 6cdb5930 41f4db0f

fs/Kconfig

+1 −1
Original line number Diff line number Diff line
@@ -43,6 +43,7 @@ source "fs/xfs/Kconfig" 
source "fs/gfs2/Kconfig"

source "fs/ocfs2/Kconfig"

source "fs/btrfs/Kconfig"

source "fs/nilfs2/Kconfig"



endif # BLOCK
@@ -186,7 +187,6 @@ source "fs/romfs/Kconfig" 
source "fs/sysv/Kconfig"

source "fs/ufs/Kconfig"

source "fs/exofs/Kconfig"

source "fs/nilfs2/Kconfig"



endif # MISC_FILESYSTEMS

fs/nilfs2/Kconfig

+1 −1
Original line number Diff line number Diff line 
config NILFS2_FS

	tristate "NILFS2 file system support (EXPERIMENTAL)"

	depends on BLOCK && EXPERIMENTAL

	depends on EXPERIMENTAL

	select CRC32

	help

	  NILFS2 is a log-structured file system (LFS) supporting continuous

fs/nilfs2/bmap.c

+20 −131
Original line number Diff line number Diff line
@@ -36,6 +36,26 @@ struct inode *nilfs_bmap_get_dat(const struct nilfs_bmap *bmap) 
	return nilfs_dat_inode(NILFS_I_NILFS(bmap->b_inode));

}



/**

 * nilfs_bmap_lookup_at_level - find a data block or node block

 * @bmap: bmap

 * @key: key

 * @level: level

 * @ptrp: place to store the value associated to @key

 *

 * Description: nilfs_bmap_lookup_at_level() finds a record whose key

 * matches @key in the block at @level of the bmap.

 *

 * Return Value: On success, 0 is returned and the record associated with @key

 * is stored in the place pointed by @ptrp. On error, one of the following

 * negative error codes is returned.

 *

 * %-EIO - I/O error.

 *

 * %-ENOMEM - Insufficient amount of memory available.

 *

 * %-ENOENT - A record associated with @key does not exist.

 */

int nilfs_bmap_lookup_at_level(struct nilfs_bmap *bmap, __u64 key, int level,

			       __u64 *ptrp)

{
@@ -69,39 +89,6 @@ int nilfs_bmap_lookup_contig(struct nilfs_bmap *bmap, __u64 key, __u64 *ptrp, 
	return ret;

}



/**

 * nilfs_bmap_lookup - find a record

 * @bmap: bmap

 * @key: key

 * @recp: pointer to record

 *

 * Description: nilfs_bmap_lookup() finds a record whose key matches @key in

 * @bmap.

 *

 * Return Value: On success, 0 is returned and the record associated with @key

 * is stored in the place pointed by @recp. On error, one of the following

 * negative error codes is returned.

 *

 * %-EIO - I/O error.

 *

 * %-ENOMEM - Insufficient amount of memory available.

 *

 * %-ENOENT - A record associated with @key does not exist.

 */

int nilfs_bmap_lookup(struct nilfs_bmap *bmap,

		      unsigned long key,

		      unsigned long *recp)

{

	__u64 ptr;

	int ret;



	/* XXX: use macro for level 1 */

	ret = nilfs_bmap_lookup_at_level(bmap, key, 1, &ptr);

	if (recp != NULL)

		*recp = ptr;

	return ret;

}



static int nilfs_bmap_do_insert(struct nilfs_bmap *bmap, __u64 key, __u64 ptr)

{

	__u64 keys[NILFS_BMAP_SMALL_HIGH + 1];
@@ -469,104 +456,6 @@ __u64 nilfs_bmap_find_target_in_group(const struct nilfs_bmap *bmap) 
		(entries_per_group / NILFS_BMAP_GROUP_DIV);

}



int nilfs_bmap_prepare_alloc_v(struct nilfs_bmap *bmap,

				 union nilfs_bmap_ptr_req *req)

{

	return nilfs_dat_prepare_alloc(nilfs_bmap_get_dat(bmap), &req->bpr_req);

}



void nilfs_bmap_commit_alloc_v(struct nilfs_bmap *bmap,

				 union nilfs_bmap_ptr_req *req)

{

	nilfs_dat_commit_alloc(nilfs_bmap_get_dat(bmap), &req->bpr_req);

}



void nilfs_bmap_abort_alloc_v(struct nilfs_bmap *bmap,

			      union nilfs_bmap_ptr_req *req)

{

	nilfs_dat_abort_alloc(nilfs_bmap_get_dat(bmap), &req->bpr_req);

}



int nilfs_bmap_start_v(struct nilfs_bmap *bmap, union nilfs_bmap_ptr_req *req,

		       sector_t blocknr)

{

	struct inode *dat = nilfs_bmap_get_dat(bmap);

	int ret;



	ret = nilfs_dat_prepare_start(dat, &req->bpr_req);

	if (likely(!ret))

		nilfs_dat_commit_start(dat, &req->bpr_req, blocknr);

	return ret;

}



int nilfs_bmap_prepare_end_v(struct nilfs_bmap *bmap,

			     union nilfs_bmap_ptr_req *req)

{

	return nilfs_dat_prepare_end(nilfs_bmap_get_dat(bmap), &req->bpr_req);

}



void nilfs_bmap_commit_end_v(struct nilfs_bmap *bmap,

			     union nilfs_bmap_ptr_req *req)

{

	nilfs_dat_commit_end(nilfs_bmap_get_dat(bmap), &req->bpr_req,

			     bmap->b_ptr_type == NILFS_BMAP_PTR_VS);

}



void nilfs_bmap_abort_end_v(struct nilfs_bmap *bmap,

			    union nilfs_bmap_ptr_req *req)

{

	nilfs_dat_abort_end(nilfs_bmap_get_dat(bmap), &req->bpr_req);

}



int nilfs_bmap_move_v(const struct nilfs_bmap *bmap, __u64 vblocknr,

		      sector_t blocknr)

{

	return nilfs_dat_move(nilfs_bmap_get_dat(bmap), vblocknr, blocknr);

}



int nilfs_bmap_mark_dirty(const struct nilfs_bmap *bmap, __u64 vblocknr)

{

	return nilfs_dat_mark_dirty(nilfs_bmap_get_dat(bmap), vblocknr);

}



int nilfs_bmap_prepare_update_v(struct nilfs_bmap *bmap,

				union nilfs_bmap_ptr_req *oldreq,

				union nilfs_bmap_ptr_req *newreq)

{

	struct inode *dat = nilfs_bmap_get_dat(bmap);

	int ret;



	ret = nilfs_dat_prepare_end(dat, &oldreq->bpr_req);

	if (ret < 0)

		return ret;

	ret = nilfs_dat_prepare_alloc(dat, &newreq->bpr_req);

	if (ret < 0)

		nilfs_dat_abort_end(dat, &oldreq->bpr_req);



	return ret;

}



void nilfs_bmap_commit_update_v(struct nilfs_bmap *bmap,

				union nilfs_bmap_ptr_req *oldreq,

				union nilfs_bmap_ptr_req *newreq)

{

	struct inode *dat = nilfs_bmap_get_dat(bmap);



	nilfs_dat_commit_end(dat, &oldreq->bpr_req,

			     bmap->b_ptr_type == NILFS_BMAP_PTR_VS);

	nilfs_dat_commit_alloc(dat, &newreq->bpr_req);

}



void nilfs_bmap_abort_update_v(struct nilfs_bmap *bmap,

			       union nilfs_bmap_ptr_req *oldreq,

			       union nilfs_bmap_ptr_req *newreq)

{

	struct inode *dat = nilfs_bmap_get_dat(bmap);



	nilfs_dat_abort_end(dat, &oldreq->bpr_req);

	nilfs_dat_abort_alloc(dat, &newreq->bpr_req);

}



static struct lock_class_key nilfs_bmap_dat_lock_key;

static struct lock_class_key nilfs_bmap_mdt_lock_key;

fs/nilfs2/bmap.h

+31 −45
Original line number Diff line number Diff line
@@ -28,6 +28,7 @@ 
#include <linux/buffer_head.h>

#include <linux/nilfs2_fs.h>

#include "alloc.h"

#include "dat.h"



#define NILFS_BMAP_INVALID_PTR	0
@@ -141,7 +142,6 @@ struct nilfs_bmap { 
int nilfs_bmap_test_and_clear_dirty(struct nilfs_bmap *);

int nilfs_bmap_read(struct nilfs_bmap *, struct nilfs_inode *);

void nilfs_bmap_write(struct nilfs_bmap *, struct nilfs_inode *);

int nilfs_bmap_lookup(struct nilfs_bmap *, unsigned long, unsigned long *);

int nilfs_bmap_lookup_contig(struct nilfs_bmap *, __u64, __u64 *, unsigned);

int nilfs_bmap_insert(struct nilfs_bmap *, unsigned long, unsigned long);

int nilfs_bmap_delete(struct nilfs_bmap *, unsigned long);
@@ -160,90 +160,76 @@ void nilfs_bmap_init_gcdat(struct nilfs_bmap *, struct nilfs_bmap *); 
void nilfs_bmap_commit_gcdat(struct nilfs_bmap *, struct nilfs_bmap *);





static inline int nilfs_bmap_lookup(struct nilfs_bmap *bmap, __u64 key,

				    __u64 *ptr)

{

	return nilfs_bmap_lookup_at_level(bmap, key, 1, ptr);

}



/*

 * Internal use only

 */

struct inode *nilfs_bmap_get_dat(const struct nilfs_bmap *);

int nilfs_bmap_prepare_alloc_v(struct nilfs_bmap *,

			       union nilfs_bmap_ptr_req *);

void nilfs_bmap_commit_alloc_v(struct nilfs_bmap *,

			       union nilfs_bmap_ptr_req *);

void nilfs_bmap_abort_alloc_v(struct nilfs_bmap *,

			      union nilfs_bmap_ptr_req *);



static inline int nilfs_bmap_prepare_alloc_ptr(struct nilfs_bmap *bmap,

					       union nilfs_bmap_ptr_req *req)

					       union nilfs_bmap_ptr_req *req,

					       struct inode *dat)

{

	if (NILFS_BMAP_USE_VBN(bmap))

		return nilfs_bmap_prepare_alloc_v(bmap, req);

	if (dat)

		return nilfs_dat_prepare_alloc(dat, &req->bpr_req);

	/* ignore target ptr */

	req->bpr_ptr = bmap->b_last_allocated_ptr++;

	return 0;

}



static inline void nilfs_bmap_commit_alloc_ptr(struct nilfs_bmap *bmap,

					       union nilfs_bmap_ptr_req *req)

					       union nilfs_bmap_ptr_req *req,

					       struct inode *dat)

{

	if (NILFS_BMAP_USE_VBN(bmap))

		nilfs_bmap_commit_alloc_v(bmap, req);

	if (dat)

		nilfs_dat_commit_alloc(dat, &req->bpr_req);

}



static inline void nilfs_bmap_abort_alloc_ptr(struct nilfs_bmap *bmap,

					      union nilfs_bmap_ptr_req *req)

					      union nilfs_bmap_ptr_req *req,

					      struct inode *dat)

{

	if (NILFS_BMAP_USE_VBN(bmap))

		nilfs_bmap_abort_alloc_v(bmap, req);

	if (dat)

		nilfs_dat_abort_alloc(dat, &req->bpr_req);

	else

		bmap->b_last_allocated_ptr--;

}



int nilfs_bmap_prepare_end_v(struct nilfs_bmap *, union nilfs_bmap_ptr_req *);

void nilfs_bmap_commit_end_v(struct nilfs_bmap *, union nilfs_bmap_ptr_req *);

void nilfs_bmap_abort_end_v(struct nilfs_bmap *, union nilfs_bmap_ptr_req *);



static inline int nilfs_bmap_prepare_end_ptr(struct nilfs_bmap *bmap,

					     union nilfs_bmap_ptr_req *req)

					     union nilfs_bmap_ptr_req *req,

					     struct inode *dat)

{

	return NILFS_BMAP_USE_VBN(bmap) ?

		nilfs_bmap_prepare_end_v(bmap, req) : 0;

	return dat ? nilfs_dat_prepare_end(dat, &req->bpr_req) : 0;

}



static inline void nilfs_bmap_commit_end_ptr(struct nilfs_bmap *bmap,

					     union nilfs_bmap_ptr_req *req)

					     union nilfs_bmap_ptr_req *req,

					     struct inode *dat)

{

	if (NILFS_BMAP_USE_VBN(bmap))

		nilfs_bmap_commit_end_v(bmap, req);

	if (dat)

		nilfs_dat_commit_end(dat, &req->bpr_req,

				     bmap->b_ptr_type == NILFS_BMAP_PTR_VS);

}



static inline void nilfs_bmap_abort_end_ptr(struct nilfs_bmap *bmap,

					    union nilfs_bmap_ptr_req *req)

					    union nilfs_bmap_ptr_req *req,

					    struct inode *dat)

{

	if (NILFS_BMAP_USE_VBN(bmap))

		nilfs_bmap_abort_end_v(bmap, req);

	if (dat)

		nilfs_dat_abort_end(dat, &req->bpr_req);

}



int nilfs_bmap_start_v(struct nilfs_bmap *, union nilfs_bmap_ptr_req *,

		       sector_t);

int nilfs_bmap_move_v(const struct nilfs_bmap *, __u64, sector_t);

int nilfs_bmap_mark_dirty(const struct nilfs_bmap *, __u64);





__u64 nilfs_bmap_data_get_key(const struct nilfs_bmap *,

			      const struct buffer_head *);



__u64 nilfs_bmap_find_target_seq(const struct nilfs_bmap *, __u64);

__u64 nilfs_bmap_find_target_in_group(const struct nilfs_bmap *);



int nilfs_bmap_prepare_update_v(struct nilfs_bmap *,

				union nilfs_bmap_ptr_req *,

				union nilfs_bmap_ptr_req *);

void nilfs_bmap_commit_update_v(struct nilfs_bmap *,

				union nilfs_bmap_ptr_req *,

				union nilfs_bmap_ptr_req *);

void nilfs_bmap_abort_update_v(struct nilfs_bmap *,

			       union nilfs_bmap_ptr_req *,

			       union nilfs_bmap_ptr_req *);



void nilfs_bmap_add_blocks(const struct nilfs_bmap *, int);

void nilfs_bmap_sub_blocks(const struct nilfs_bmap *, int);

fs/nilfs2/btree.c

+295 −330

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