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Commit 2d896c78 authored by Linus Torvalds's avatar Linus Torvalds
Browse files

Merge branch 'for-linus' of git://oss.sgi.com:8090/xfs/xfs-2.6 

* 'for-linus' of git://oss.sgi.com:8090/xfs/xfs-2.6: (37 commits)
  [XFS] Fix lockdep annotations for xfs_lock_inodes
  [LIB]: export radix_tree_preload()
  [XFS] Fix XFS_IOC_FSBULKSTAT{,_SINGLE} & XFS_IOC_FSINUMBERS in compat mode
  [XFS] Compat ioctl handler for handle operations
  [XFS] Compat ioctl handler for XFS_IOC_FSGEOMETRY_V1.
  [XFS] Clean up function name handling in tracing code
  [XFS] Quota inode has no parent.
  [XFS] Concurrent Multi-File Data Streams
  [XFS] Use uninitialized_var macro to stop warning about rtx
  [XFS] XFS should not be looking at filp reference counts
  [XFS] Use is_power_of_2 instead of open coding checks
  [XFS] Reduce shouting by removing unnecessary macros from dir2 code.
  [XFS] Simplify XFS min/max macros.
  [XFS] Kill off xfs_count_bits
  [XFS] Cancel transactions on xfs_itruncate_start error.
  [XFS] Use do_div() on 64 bit types.
  [XFS] Fix remount,readonly path to flush everything correctly.
  [XFS] Cleanup inode extent size hint extraction
  [XFS] Prevent ENOSPC from aborting transactions that need to succeed
  [XFS] Prevent deadlock when flushing inodes on unmount
  ...
parents 2a9915c8 0f1145cc

fs/xfs/Makefile-linux-2.6

+2 −0
Original line number Diff line number Diff line
@@ -64,6 +64,7 @@ xfs-y += xfs_alloc.o \ 
				   xfs_dir2_sf.o \

				   xfs_error.o \

				   xfs_extfree_item.o \

				   xfs_filestream.o \

				   xfs_fsops.o \

				   xfs_ialloc.o \

				   xfs_ialloc_btree.o \
@@ -77,6 +78,7 @@ xfs-y += xfs_alloc.o \ 
				   xfs_log.o \

				   xfs_log_recover.o \

				   xfs_mount.o \

				   xfs_mru_cache.o \

				   xfs_rename.o \

				   xfs_trans.o \

				   xfs_trans_ail.o \

fs/xfs/linux-2.6/kmem.h

+0 −19
Original line number Diff line number Diff line
@@ -100,25 +100,6 @@ kmem_zone_destroy(kmem_zone_t *zone) 
extern void *kmem_zone_alloc(kmem_zone_t *, unsigned int __nocast);

extern void *kmem_zone_zalloc(kmem_zone_t *, unsigned int __nocast);



/*

 * Low memory cache shrinkers

 */



typedef struct shrinker *kmem_shaker_t;

typedef int (*kmem_shake_func_t)(int, gfp_t);



static inline kmem_shaker_t

kmem_shake_register(kmem_shake_func_t sfunc)

{

	return set_shrinker(DEFAULT_SEEKS, sfunc);

}



static inline void

kmem_shake_deregister(kmem_shaker_t shrinker)

{

	remove_shrinker(shrinker);

}



static inline int

kmem_shake_allow(gfp_t gfp_mask)

{

fs/xfs/linux-2.6/xfs_aops.c

+34 −9
Original line number Diff line number Diff line
@@ -108,14 +108,19 @@ xfs_page_trace( 


/*

 * Schedule IO completion handling on a xfsdatad if this was

 * the final hold on this ioend.

 * the final hold on this ioend. If we are asked to wait,

 * flush the workqueue.

 */

STATIC void

xfs_finish_ioend(

	xfs_ioend_t		*ioend)

	xfs_ioend_t	*ioend,

	int		wait)

{

	if (atomic_dec_and_test(&ioend->io_remaining))

	if (atomic_dec_and_test(&ioend->io_remaining)) {

		queue_work(xfsdatad_workqueue, &ioend->io_work);

		if (wait)

			flush_workqueue(xfsdatad_workqueue);

	}

}



/*
@@ -156,6 +161,8 @@ xfs_setfilesize( 
	xfs_fsize_t		bsize;



	ip = xfs_vtoi(ioend->io_vnode);

	if (!ip)

		return;



	ASSERT((ip->i_d.di_mode & S_IFMT) == S_IFREG);

	ASSERT(ioend->io_type != IOMAP_READ);
@@ -334,7 +341,7 @@ xfs_end_bio( 
	bio->bi_end_io = NULL;

	bio_put(bio);



	xfs_finish_ioend(ioend);

	xfs_finish_ioend(ioend, 0);

	return 0;

}
@@ -470,7 +477,7 @@ xfs_submit_ioend( 
		}

		if (bio)

			xfs_submit_ioend_bio(ioend, bio);

		xfs_finish_ioend(ioend);

		xfs_finish_ioend(ioend, 0);

	} while ((ioend = next) != NULL);

}
@@ -1003,6 +1010,8 @@ xfs_page_state_convert( 
		if (buffer_unwritten(bh) || buffer_delay(bh) ||

		    ((buffer_uptodate(bh) || PageUptodate(page)) &&

		     !buffer_mapped(bh) && (unmapped || startio))) {

			int new_ioend = 0;



			/*

			 * Make sure we don't use a read-only iomap

			 */
@@ -1021,6 +1030,15 @@ xfs_page_state_convert( 
			}



			if (!iomap_valid) {

				/*

				 * if we didn't have a valid mapping then we

				 * need to ensure that we put the new mapping

				 * in a new ioend structure. This needs to be

				 * done to ensure that the ioends correctly

				 * reflect the block mappings at io completion

				 * for unwritten extent conversion.

				 */

				new_ioend = 1;

				if (type == IOMAP_NEW) {

					size = xfs_probe_cluster(inode,

							page, bh, head, 0);
@@ -1040,7 +1058,7 @@ xfs_page_state_convert( 
				if (startio) {

					xfs_add_to_ioend(inode, bh, offset,

							type, &ioend,

							!iomap_valid);

							new_ioend);

				} else {

					set_buffer_dirty(bh);

					unlock_buffer(bh);
@@ -1416,6 +1434,13 @@ xfs_end_io_direct( 
	 * This is not necessary for synchronous direct I/O, but we do

	 * it anyway to keep the code uniform and simpler.

	 *

	 * Well, if only it were that simple. Because synchronous direct I/O

	 * requires extent conversion to occur *before* we return to userspace,

	 * we have to wait for extent conversion to complete. Look at the

	 * iocb that has been passed to us to determine if this is AIO or

	 * not. If it is synchronous, tell xfs_finish_ioend() to kick the

	 * workqueue and wait for it to complete.

	 *

	 * The core direct I/O code might be changed to always call the

	 * completion handler in the future, in which case all this can

	 * go away.
@@ -1423,9 +1448,9 @@ xfs_end_io_direct( 
	ioend->io_offset = offset;

	ioend->io_size = size;

	if (ioend->io_type == IOMAP_READ) {

		xfs_finish_ioend(ioend);

		xfs_finish_ioend(ioend, 0);

	} else if (private && size > 0) {

		xfs_finish_ioend(ioend);

		xfs_finish_ioend(ioend, is_sync_kiocb(iocb));

	} else {

		/*

		 * A direct I/O write ioend starts it's life in unwritten
@@ -1434,7 +1459,7 @@ xfs_end_io_direct( 
		 * handler.

		 */

		INIT_WORK(&ioend->io_work, xfs_end_bio_written);

		xfs_finish_ioend(ioend);

		xfs_finish_ioend(ioend, 0);

	}



	/*

fs/xfs/linux-2.6/xfs_buf.c

+27 −32
Original line number Diff line number Diff line
@@ -35,7 +35,7 @@ 
#include <linux/freezer.h>



static kmem_zone_t *xfs_buf_zone;

static kmem_shaker_t xfs_buf_shake;

static struct shrinker *xfs_buf_shake;

STATIC int xfsbufd(void *);

STATIC int xfsbufd_wakeup(int, gfp_t);

STATIC void xfs_buf_delwri_queue(xfs_buf_t *, int);
@@ -314,7 +314,7 @@ xfs_buf_free( 


	ASSERT(list_empty(&bp->b_hash_list));



	if (bp->b_flags & _XBF_PAGE_CACHE) {

	if (bp->b_flags & (_XBF_PAGE_CACHE|_XBF_PAGES)) {

		uint		i;



		if ((bp->b_flags & XBF_MAPPED) && (bp->b_page_count > 1))
@@ -323,18 +323,11 @@ xfs_buf_free( 
		for (i = 0; i < bp->b_page_count; i++) {

			struct page	*page = bp->b_pages[i];



			if (bp->b_flags & _XBF_PAGE_CACHE)

				ASSERT(!PagePrivate(page));

			page_cache_release(page);

		}

		_xfs_buf_free_pages(bp);

	} else if (bp->b_flags & _XBF_KMEM_ALLOC) {

		 /*

		  * XXX(hch): bp->b_count_desired might be incorrect (see

		  * xfs_buf_associate_memory for details), but fortunately

		  * the Linux version of kmem_free ignores the len argument..

		  */

		kmem_free(bp->b_addr, bp->b_count_desired);

		_xfs_buf_free_pages(bp);

	}



	xfs_buf_deallocate(bp);
@@ -764,43 +757,44 @@ xfs_buf_get_noaddr( 
	size_t			len,

	xfs_buftarg_t		*target)

{

	size_t			malloc_len = len;

	unsigned long		page_count = PAGE_ALIGN(len) >> PAGE_SHIFT;

	int			error, i;

	xfs_buf_t		*bp;

	void			*data;

	int			error;



	bp = xfs_buf_allocate(0);

	if (unlikely(bp == NULL))

		goto fail;

	_xfs_buf_initialize(bp, target, 0, len, 0);



 try_again:

	data = kmem_alloc(malloc_len, KM_SLEEP | KM_MAYFAIL | KM_LARGE);

	if (unlikely(data == NULL))

	error = _xfs_buf_get_pages(bp, page_count, 0);

	if (error)

		goto fail_free_buf;



	/* check whether alignment matches.. */

	if ((__psunsigned_t)data !=

	    ((__psunsigned_t)data & ~target->bt_smask)) {

		/* .. else double the size and try again */

		kmem_free(data, malloc_len);

		malloc_len <<= 1;

		goto try_again;

	for (i = 0; i < page_count; i++) {

		bp->b_pages[i] = alloc_page(GFP_KERNEL);

		if (!bp->b_pages[i])

			goto fail_free_mem;

	}

	bp->b_flags |= _XBF_PAGES;



	error = xfs_buf_associate_memory(bp, data, len);

	if (error)

	error = _xfs_buf_map_pages(bp, XBF_MAPPED);

	if (unlikely(error)) {

		printk(KERN_WARNING "%s: failed to map pages\n",

				__FUNCTION__);

		goto fail_free_mem;

	bp->b_flags |= _XBF_KMEM_ALLOC;

	}



	xfs_buf_unlock(bp);



	XB_TRACE(bp, "no_daddr", data);

	XB_TRACE(bp, "no_daddr", len);

	return bp;



 fail_free_mem:

	kmem_free(data, malloc_len);

	while (--i >= 0)

		__free_page(bp->b_pages[i]);

	_xfs_buf_free_pages(bp);

 fail_free_buf:

	xfs_buf_free(bp);

	xfs_buf_deallocate(bp);

 fail:

	return NULL;

}
@@ -1453,6 +1447,7 @@ xfs_free_buftarg( 
	int			external)

{

	xfs_flush_buftarg(btp, 1);

	xfs_blkdev_issue_flush(btp);

	if (external)

		xfs_blkdev_put(btp->bt_bdev);

	xfs_free_bufhash(btp);
@@ -1837,7 +1832,7 @@ xfs_buf_init(void) 
	if (!xfsdatad_workqueue)

		goto out_destroy_xfslogd_workqueue;



	xfs_buf_shake = kmem_shake_register(xfsbufd_wakeup);

	xfs_buf_shake = set_shrinker(DEFAULT_SEEKS, xfsbufd_wakeup);

	if (!xfs_buf_shake)

		goto out_destroy_xfsdatad_workqueue;
@@ -1859,7 +1854,7 @@ xfs_buf_init(void) 
void

xfs_buf_terminate(void)

{

	kmem_shake_deregister(xfs_buf_shake);

	remove_shrinker(xfs_buf_shake);

	destroy_workqueue(xfsdatad_workqueue);

	destroy_workqueue(xfslogd_workqueue);

	kmem_zone_destroy(xfs_buf_zone);

fs/xfs/linux-2.6/xfs_buf.h

+1 −1
Original line number Diff line number Diff line
@@ -63,7 +63,7 @@ typedef enum { 


	/* flags used only internally */

	_XBF_PAGE_CACHE = (1 << 17),/* backed by pagecache		   */

	_XBF_KMEM_ALLOC = (1 << 18),/* backed by kmem_alloc()		   */

	_XBF_PAGES = (1 << 18),	    /* backed by refcounted pages	   */

	_XBF_RUN_QUEUES = (1 << 19),/* run block device task queue	   */

	_XBF_DELWRI_Q = (1 << 21),   /* buffer on delwri queue		   */

} xfs_buf_flags_t;