Merge branch 'ufs' into for-next (b5f5914c) · Commits · e / devices / android_kernel_teracube_2e

fs/ufs/Makefile

+1 −1

Original line number	Diff line number	Diff line
		@@ -5,5 +5,5 @@
		obj-$(CONFIG_UFS_FS) += ufs.o

		ufs-objs := balloc.o cylinder.o dir.o file.o ialloc.o inode.o \
		namei.o super.o symlink.o truncate.o util.o
		namei.o super.o symlink.o util.o
		ccflags-$(CONFIG_UFS_DEBUG) += -DDEBUG

fs/ufs/balloc.c

+4 −0

Original line number	Diff line number	Diff line
		@@ -417,7 +417,9 @@ u64 ufs_new_fragments(struct inode inode, void p, u64 fragment,
		if (oldcount == 0) {
		result = ufs_alloc_fragments (inode, cgno, goal, count, err);
		if (result) {
		write_seqlock(&UFS_I(inode)->meta_lock);
		ufs_cpu_to_data_ptr(sb, p, result);
		write_sequnlock(&UFS_I(inode)->meta_lock);
		*err = 0;
		UFS_I(inode)->i_lastfrag =
		max(UFS_I(inode)->i_lastfrag, fragment + count);
		@@ -473,7 +475,9 @@ u64 ufs_new_fragments(struct inode inode, void p, u64 fragment,
		ufs_change_blocknr(inode, fragment - oldcount, oldcount,
		uspi->s_sbbase + tmp,
		uspi->s_sbbase + result, locked_page);
		write_seqlock(&UFS_I(inode)->meta_lock);
		ufs_cpu_to_data_ptr(sb, p, result);
		write_sequnlock(&UFS_I(inode)->meta_lock);
		*err = 0;
		UFS_I(inode)->i_lastfrag = max(UFS_I(inode)->i_lastfrag,
		fragment + count);

fs/ufs/inode.c

+632 −316

File changed.

Preview size limit exceeded, changes collapsed.

fs/ufs/super.c

+4 −32

Original line number	Diff line number	Diff line
		@@ -94,22 +94,6 @@
		#include "swab.h"
		#include "util.h"

		void lock_ufs(struct super_block *sb)
		{
		struct ufs_sb_info *sbi = UFS_SB(sb);

		mutex_lock(&sbi->mutex);
		sbi->mutex_owner = current;
		}

		void unlock_ufs(struct super_block *sb)
		{
		struct ufs_sb_info *sbi = UFS_SB(sb);

		sbi->mutex_owner = NULL;
		mutex_unlock(&sbi->mutex);
		}

		static struct inode ufs_nfs_get_inode(struct super_block sb, u64 ino, u32 generation)
		{
		struct ufs_sb_private_info *uspi = UFS_SB(sb)->s_uspi;
		@@ -694,7 +678,6 @@ static int ufs_sync_fs(struct super_block *sb, int wait)
		struct ufs_super_block_third * usb3;
		unsigned flags;

		lock_ufs(sb);
		mutex_lock(&UFS_SB(sb)->s_lock);

		UFSD("ENTER\n");
		@@ -714,7 +697,6 @@ static int ufs_sync_fs(struct super_block *sb, int wait)

		UFSD("EXIT\n");
		mutex_unlock(&UFS_SB(sb)->s_lock);
		unlock_ufs(sb);

		return 0;
		}
		@@ -758,7 +740,6 @@ static void ufs_put_super(struct super_block *sb)

		ubh_brelse_uspi (sbi->s_uspi);
		kfree (sbi->s_uspi);
		mutex_destroy(&sbi->mutex);
		kfree (sbi);
		sb->s_fs_info = NULL;
		UFSD("EXIT\n");
		@@ -801,7 +782,6 @@ static int ufs_fill_super(struct super_block sb, void data, int silent)

		UFSD("flag %u\n", (int)(sb->s_flags & MS_RDONLY));

		mutex_init(&sbi->mutex);
		mutex_init(&sbi->s_lock);
		spin_lock_init(&sbi->work_lock);
		INIT_DELAYED_WORK(&sbi->sync_work, delayed_sync_fs);
		@@ -1257,7 +1237,6 @@ static int ufs_fill_super(struct super_block sb, void data, int silent)
		return 0;

		failed:
		mutex_destroy(&sbi->mutex);
		if (ubh)
		ubh_brelse_uspi (uspi);
		kfree (uspi);
		@@ -1280,7 +1259,6 @@ static int ufs_remount (struct super_block sb, int mount_flags, char *data)
		unsigned flags;

		sync_filesystem(sb);
		lock_ufs(sb);
		mutex_lock(&UFS_SB(sb)->s_lock);
		uspi = UFS_SB(sb)->s_uspi;
		flags = UFS_SB(sb)->s_flags;
		@@ -1296,7 +1274,6 @@ static int ufs_remount (struct super_block sb, int mount_flags, char *data)
		ufs_set_opt (new_mount_opt, ONERROR_LOCK);
		if (!ufs_parse_options (data, &new_mount_opt)) {
		mutex_unlock(&UFS_SB(sb)->s_lock);
		unlock_ufs(sb);
		return -EINVAL;
		}
		if (!(new_mount_opt & UFS_MOUNT_UFSTYPE)) {
		@@ -1304,14 +1281,12 @@ static int ufs_remount (struct super_block sb, int mount_flags, char *data)
		} else if ((new_mount_opt & UFS_MOUNT_UFSTYPE) != ufstype) {
		pr_err("ufstype can't be changed during remount\n");
		mutex_unlock(&UFS_SB(sb)->s_lock);
		unlock_ufs(sb);
		return -EINVAL;
		}

		if ((*mount_flags & MS_RDONLY) == (sb->s_flags & MS_RDONLY)) {
		UFS_SB(sb)->s_mount_opt = new_mount_opt;
		mutex_unlock(&UFS_SB(sb)->s_lock);
		unlock_ufs(sb);
		return 0;
		}

		@@ -1335,7 +1310,6 @@ static int ufs_remount (struct super_block sb, int mount_flags, char *data)
		#ifndef CONFIG_UFS_FS_WRITE
		pr_err("ufs was compiled with read-only support, can't be mounted as read-write\n");
		mutex_unlock(&UFS_SB(sb)->s_lock);
		unlock_ufs(sb);
		return -EINVAL;
		#else
		if (ufstype != UFS_MOUNT_UFSTYPE_SUN &&
		@@ -1345,13 +1319,11 @@ static int ufs_remount (struct super_block sb, int mount_flags, char *data)
		ufstype != UFS_MOUNT_UFSTYPE_UFS2) {
		pr_err("this ufstype is read-only supported\n");
		mutex_unlock(&UFS_SB(sb)->s_lock);
		unlock_ufs(sb);
		return -EINVAL;
		}
		if (!ufs_read_cylinder_structures(sb)) {
		pr_err("failed during remounting\n");
		mutex_unlock(&UFS_SB(sb)->s_lock);
		unlock_ufs(sb);
		return -EPERM;
		}
		sb->s_flags &= ~MS_RDONLY;
		@@ -1359,7 +1331,6 @@ static int ufs_remount (struct super_block sb, int mount_flags, char *data)
		}
		UFS_SB(sb)->s_mount_opt = new_mount_opt;
		mutex_unlock(&UFS_SB(sb)->s_lock);
		unlock_ufs(sb);
		return 0;
		}

		@@ -1391,8 +1362,7 @@ static int ufs_statfs(struct dentry dentry, struct kstatfs buf)
		struct ufs_super_block_third *usb3;
		u64 id = huge_encode_dev(sb->s_bdev->bd_dev);

		lock_ufs(sb);

		mutex_lock(&UFS_SB(sb)->s_lock);
		usb3 = ubh_get_usb_third(uspi);

		if ((flags & UFS_TYPE_MASK) == UFS_TYPE_UFS2) {
		@@ -1413,7 +1383,7 @@ static int ufs_statfs(struct dentry dentry, struct kstatfs buf)
		buf->f_fsid.val[0] = (u32)id;
		buf->f_fsid.val[1] = (u32)(id >> 32);

		unlock_ufs(sb);
		mutex_unlock(&UFS_SB(sb)->s_lock);

		return 0;
		}
		@@ -1429,6 +1399,8 @@ static struct inode ufs_alloc_inode(struct super_block sb)
		return NULL;

		ei->vfs_inode.i_version = 1;
		seqlock_init(&ei->meta_lock);
		mutex_init(&ei->truncate_mutex);
		return &ei->vfs_inode;
		}

fs/ufs/truncate.c

deleted100644 → 0

+0 −523

Original line number	Diff line number	Diff line
		/*
		* linux/fs/ufs/truncate.c
		*
		* Copyright (C) 1998
		* Daniel Pirkl <daniel.pirkl@email.cz>
		* Charles University, Faculty of Mathematics and Physics
		*
		* from
		*
		* linux/fs/ext2/truncate.c
		*
		* Copyright (C) 1992, 1993, 1994, 1995
		* Remy Card (card@masi.ibp.fr)
		* Laboratoire MASI - Institut Blaise Pascal
		* Universite Pierre et Marie Curie (Paris VI)
		*
		* from
		*
		* linux/fs/minix/truncate.c
		*
		* Copyright (C) 1991, 1992 Linus Torvalds
		*
		* Big-endian to little-endian byte-swapping/bitmaps by
		* David S. Miller (davem@caip.rutgers.edu), 1995
		*/

		/*
		* Real random numbers for secure rm added 94/02/18
		* Idea from Pierre del Perugia <delperug@gla.ecoledoc.ibp.fr>
		*/

		/*
		* Adoptation to use page cache and UFS2 write support by
		* Evgeniy Dushistov <dushistov@mail.ru>, 2006-2007
		*/

		#include <linux/errno.h>
		#include <linux/fs.h>
		#include <linux/fcntl.h>
		#include <linux/time.h>
		#include <linux/stat.h>
		#include <linux/string.h>
		#include <linux/buffer_head.h>
		#include <linux/blkdev.h>
		#include <linux/sched.h>

		#include "ufs_fs.h"
		#include "ufs.h"
		#include "swab.h"
		#include "util.h"

		/*
		* Secure deletion currently doesn't work. It interacts very badly
		* with buffers shared with memory mappings, and for that reason
		* can't be done in the truncate() routines. It should instead be
		* done separately in "release()" before calling the truncate routines
		* that will release the actual file blocks.
		*
		* Linus
		*/

		#define DIRECT_BLOCK ((inode->i_size + uspi->s_bsize - 1) >> uspi->s_bshift)
		#define DIRECT_FRAGMENT ((inode->i_size + uspi->s_fsize - 1) >> uspi->s_fshift)


		static int ufs_trunc_direct(struct inode *inode)
		{
		struct ufs_inode_info *ufsi = UFS_I(inode);
		struct super_block * sb;
		struct ufs_sb_private_info * uspi;
		void *p;
		u64 frag1, frag2, frag3, frag4, block1, block2;
		unsigned frag_to_free, free_count;
		unsigned i, tmp;
		int retry;

		UFSD("ENTER: ino %lu\n", inode->i_ino);

		sb = inode->i_sb;
		uspi = UFS_SB(sb)->s_uspi;

		frag_to_free = 0;
		free_count = 0;
		retry = 0;

		frag1 = DIRECT_FRAGMENT;
		frag4 = min_t(u64, UFS_NDIR_FRAGMENT, ufsi->i_lastfrag);
		frag2 = ((frag1 & uspi->s_fpbmask) ? ((frag1 \| uspi->s_fpbmask) + 1) : frag1);
		frag3 = frag4 & ~uspi->s_fpbmask;
		block1 = block2 = 0;
		if (frag2 > frag3) {
		frag2 = frag4;
		frag3 = frag4 = 0;
		} else if (frag2 < frag3) {
		block1 = ufs_fragstoblks (frag2);
		block2 = ufs_fragstoblks (frag3);
		}

		UFSD("ino %lu, frag1 %llu, frag2 %llu, block1 %llu, block2 %llu,"
		" frag3 %llu, frag4 %llu\n", inode->i_ino,
		(unsigned long long)frag1, (unsigned long long)frag2,
		(unsigned long long)block1, (unsigned long long)block2,
		(unsigned long long)frag3, (unsigned long long)frag4);

		if (frag1 >= frag2)
		goto next1;

		/*
		* Free first free fragments
		*/
		p = ufs_get_direct_data_ptr(uspi, ufsi, ufs_fragstoblks(frag1));
		tmp = ufs_data_ptr_to_cpu(sb, p);
		if (!tmp )
		ufs_panic (sb, "ufs_trunc_direct", "internal error");
		frag2 -= frag1;
		frag1 = ufs_fragnum (frag1);

		ufs_free_fragments(inode, tmp + frag1, frag2);
		mark_inode_dirty(inode);
		frag_to_free = tmp + frag1;

		next1:
		/*
		* Free whole blocks
		*/
		for (i = block1 ; i < block2; i++) {
		p = ufs_get_direct_data_ptr(uspi, ufsi, i);
		tmp = ufs_data_ptr_to_cpu(sb, p);
		if (!tmp)
		continue;
		ufs_data_ptr_clear(uspi, p);

		if (free_count == 0) {
		frag_to_free = tmp;
		free_count = uspi->s_fpb;
		} else if (free_count > 0 && frag_to_free == tmp - free_count)
		free_count += uspi->s_fpb;
		else {
		ufs_free_blocks (inode, frag_to_free, free_count);
		frag_to_free = tmp;
		free_count = uspi->s_fpb;
		}
		mark_inode_dirty(inode);
		}

		if (free_count > 0)
		ufs_free_blocks (inode, frag_to_free, free_count);

		if (frag3 >= frag4)
		goto next3;

		/*
		* Free last free fragments
		*/
		p = ufs_get_direct_data_ptr(uspi, ufsi, ufs_fragstoblks(frag3));
		tmp = ufs_data_ptr_to_cpu(sb, p);
		if (!tmp )
		ufs_panic(sb, "ufs_truncate_direct", "internal error");
		frag4 = ufs_fragnum (frag4);
		ufs_data_ptr_clear(uspi, p);

		ufs_free_fragments (inode, tmp, frag4);
		mark_inode_dirty(inode);
		next3:

		UFSD("EXIT: ino %lu\n", inode->i_ino);
		return retry;
		}


		static int ufs_trunc_indirect(struct inode inode, u64 offset, void p)
		{
		struct super_block * sb;
		struct ufs_sb_private_info * uspi;
		struct ufs_buffer_head * ind_ubh;
		void *ind;
		u64 tmp, indirect_block, i, frag_to_free;
		unsigned free_count;
		int retry;

		UFSD("ENTER: ino %lu, offset %llu, p: %p\n",
		inode->i_ino, (unsigned long long)offset, p);

		BUG_ON(!p);

		sb = inode->i_sb;
		uspi = UFS_SB(sb)->s_uspi;

		frag_to_free = 0;
		free_count = 0;
		retry = 0;

		tmp = ufs_data_ptr_to_cpu(sb, p);
		if (!tmp)
		return 0;
		ind_ubh = ubh_bread(sb, tmp, uspi->s_bsize);
		if (tmp != ufs_data_ptr_to_cpu(sb, p)) {
		ubh_brelse (ind_ubh);
		return 1;
		}
		if (!ind_ubh) {
		ufs_data_ptr_clear(uspi, p);
		return 0;
		}

		indirect_block = (DIRECT_BLOCK > offset) ? (DIRECT_BLOCK - offset) : 0;
		for (i = indirect_block; i < uspi->s_apb; i++) {
		ind = ubh_get_data_ptr(uspi, ind_ubh, i);
		tmp = ufs_data_ptr_to_cpu(sb, ind);
		if (!tmp)
		continue;

		ufs_data_ptr_clear(uspi, ind);
		ubh_mark_buffer_dirty(ind_ubh);
		if (free_count == 0) {
		frag_to_free = tmp;
		free_count = uspi->s_fpb;
		} else if (free_count > 0 && frag_to_free == tmp - free_count)
		free_count += uspi->s_fpb;
		else {
		ufs_free_blocks (inode, frag_to_free, free_count);
		frag_to_free = tmp;
		free_count = uspi->s_fpb;
		}

		mark_inode_dirty(inode);
		}

		if (free_count > 0) {
		ufs_free_blocks (inode, frag_to_free, free_count);
		}
		for (i = 0; i < uspi->s_apb; i++)
		if (!ufs_is_data_ptr_zero(uspi,
		ubh_get_data_ptr(uspi, ind_ubh, i)))
		break;
		if (i >= uspi->s_apb) {
		tmp = ufs_data_ptr_to_cpu(sb, p);
		ufs_data_ptr_clear(uspi, p);

		ufs_free_blocks (inode, tmp, uspi->s_fpb);
		mark_inode_dirty(inode);
		ubh_bforget(ind_ubh);
		ind_ubh = NULL;
		}
		if (IS_SYNC(inode) && ind_ubh && ubh_buffer_dirty(ind_ubh))
		ubh_sync_block(ind_ubh);
		ubh_brelse (ind_ubh);

		UFSD("EXIT: ino %lu\n", inode->i_ino);

		return retry;
		}

		static int ufs_trunc_dindirect(struct inode inode, u64 offset, void p)
		{
		struct super_block * sb;
		struct ufs_sb_private_info * uspi;
		struct ufs_buffer_head *dind_bh;
		u64 i, tmp, dindirect_block;
		void *dind;
		int retry = 0;

		UFSD("ENTER: ino %lu\n", inode->i_ino);

		sb = inode->i_sb;
		uspi = UFS_SB(sb)->s_uspi;

		dindirect_block = (DIRECT_BLOCK > offset)
		? ((DIRECT_BLOCK - offset) >> uspi->s_apbshift) : 0;
		retry = 0;

		tmp = ufs_data_ptr_to_cpu(sb, p);
		if (!tmp)
		return 0;
		dind_bh = ubh_bread(sb, tmp, uspi->s_bsize);
		if (tmp != ufs_data_ptr_to_cpu(sb, p)) {
		ubh_brelse (dind_bh);
		return 1;
		}
		if (!dind_bh) {
		ufs_data_ptr_clear(uspi, p);
		return 0;
		}

		for (i = dindirect_block ; i < uspi->s_apb ; i++) {
		dind = ubh_get_data_ptr(uspi, dind_bh, i);
		tmp = ufs_data_ptr_to_cpu(sb, dind);
		if (!tmp)
		continue;
		retry \|= ufs_trunc_indirect (inode, offset + (i << uspi->s_apbshift), dind);
		ubh_mark_buffer_dirty(dind_bh);
		}

		for (i = 0; i < uspi->s_apb; i++)
		if (!ufs_is_data_ptr_zero(uspi,
		ubh_get_data_ptr(uspi, dind_bh, i)))
		break;
		if (i >= uspi->s_apb) {
		tmp = ufs_data_ptr_to_cpu(sb, p);
		ufs_data_ptr_clear(uspi, p);

		ufs_free_blocks(inode, tmp, uspi->s_fpb);
		mark_inode_dirty(inode);
		ubh_bforget(dind_bh);
		dind_bh = NULL;
		}
		if (IS_SYNC(inode) && dind_bh && ubh_buffer_dirty(dind_bh))
		ubh_sync_block(dind_bh);
		ubh_brelse (dind_bh);

		UFSD("EXIT: ino %lu\n", inode->i_ino);

		return retry;
		}

		static int ufs_trunc_tindirect(struct inode *inode)
		{
		struct super_block *sb = inode->i_sb;
		struct ufs_sb_private_info *uspi = UFS_SB(sb)->s_uspi;
		struct ufs_inode_info *ufsi = UFS_I(inode);
		struct ufs_buffer_head * tind_bh;
		u64 tindirect_block, tmp, i;
		void tind, p;
		int retry;

		UFSD("ENTER: ino %lu\n", inode->i_ino);

		retry = 0;

		tindirect_block = (DIRECT_BLOCK > (UFS_NDADDR + uspi->s_apb + uspi->s_2apb))
		? ((DIRECT_BLOCK - UFS_NDADDR - uspi->s_apb - uspi->s_2apb) >> uspi->s_2apbshift) : 0;

		p = ufs_get_direct_data_ptr(uspi, ufsi, UFS_TIND_BLOCK);
		if (!(tmp = ufs_data_ptr_to_cpu(sb, p)))
		return 0;
		tind_bh = ubh_bread (sb, tmp, uspi->s_bsize);
		if (tmp != ufs_data_ptr_to_cpu(sb, p)) {
		ubh_brelse (tind_bh);
		return 1;
		}
		if (!tind_bh) {
		ufs_data_ptr_clear(uspi, p);
		return 0;
		}

		for (i = tindirect_block ; i < uspi->s_apb ; i++) {
		tind = ubh_get_data_ptr(uspi, tind_bh, i);
		retry \|= ufs_trunc_dindirect(inode, UFS_NDADDR +
		uspi->s_apb + ((i + 1) << uspi->s_2apbshift), tind);
		ubh_mark_buffer_dirty(tind_bh);
		}
		for (i = 0; i < uspi->s_apb; i++)
		if (!ufs_is_data_ptr_zero(uspi,
		ubh_get_data_ptr(uspi, tind_bh, i)))
		break;
		if (i >= uspi->s_apb) {
		tmp = ufs_data_ptr_to_cpu(sb, p);
		ufs_data_ptr_clear(uspi, p);

		ufs_free_blocks(inode, tmp, uspi->s_fpb);
		mark_inode_dirty(inode);
		ubh_bforget(tind_bh);
		tind_bh = NULL;
		}
		if (IS_SYNC(inode) && tind_bh && ubh_buffer_dirty(tind_bh))
		ubh_sync_block(tind_bh);
		ubh_brelse (tind_bh);

		UFSD("EXIT: ino %lu\n", inode->i_ino);
		return retry;
		}

		static int ufs_alloc_lastblock(struct inode *inode)
		{
		int err = 0;
		struct super_block *sb = inode->i_sb;
		struct address_space *mapping = inode->i_mapping;
		struct ufs_sb_private_info *uspi = UFS_SB(sb)->s_uspi;
		unsigned i, end;
		sector_t lastfrag;
		struct page *lastpage;
		struct buffer_head *bh;
		u64 phys64;

		lastfrag = (i_size_read(inode) + uspi->s_fsize - 1) >> uspi->s_fshift;

		if (!lastfrag)
		goto out;

		lastfrag--;

		lastpage = ufs_get_locked_page(mapping, lastfrag >>
		(PAGE_CACHE_SHIFT - inode->i_blkbits));
		if (IS_ERR(lastpage)) {
		err = -EIO;
		goto out;
		}

		end = lastfrag & ((1 << (PAGE_CACHE_SHIFT - inode->i_blkbits)) - 1);
		bh = page_buffers(lastpage);
		for (i = 0; i < end; ++i)
		bh = bh->b_this_page;


		err = ufs_getfrag_block(inode, lastfrag, bh, 1);

		if (unlikely(err))
		goto out_unlock;

		if (buffer_new(bh)) {
		clear_buffer_new(bh);
		unmap_underlying_metadata(bh->b_bdev,
		bh->b_blocknr);
		/*
		* we do not zeroize fragment, because of
		* if it maped to hole, it already contains zeroes
		*/
		set_buffer_uptodate(bh);
		mark_buffer_dirty(bh);
		set_page_dirty(lastpage);
		}

		if (lastfrag >= UFS_IND_FRAGMENT) {
		end = uspi->s_fpb - ufs_fragnum(lastfrag) - 1;
		phys64 = bh->b_blocknr + 1;
		for (i = 0; i < end; ++i) {
		bh = sb_getblk(sb, i + phys64);
		lock_buffer(bh);
		memset(bh->b_data, 0, sb->s_blocksize);
		set_buffer_uptodate(bh);
		mark_buffer_dirty(bh);
		unlock_buffer(bh);
		sync_dirty_buffer(bh);
		brelse(bh);
		}
		}
		out_unlock:
		ufs_put_locked_page(lastpage);
		out:
		return err;
		}

		int ufs_truncate(struct inode *inode, loff_t old_i_size)
		{
		struct ufs_inode_info *ufsi = UFS_I(inode);
		struct super_block *sb = inode->i_sb;
		struct ufs_sb_private_info *uspi = UFS_SB(sb)->s_uspi;
		int retry, err = 0;

		UFSD("ENTER: ino %lu, i_size: %llu, old_i_size: %llu\n",
		inode->i_ino, (unsigned long long)i_size_read(inode),
		(unsigned long long)old_i_size);

		if (!(S_ISREG(inode->i_mode) \|\| S_ISDIR(inode->i_mode) \|\|
		S_ISLNK(inode->i_mode)))
		return -EINVAL;
		if (IS_APPEND(inode) \|\| IS_IMMUTABLE(inode))
		return -EPERM;

		err = ufs_alloc_lastblock(inode);

		if (err) {
		i_size_write(inode, old_i_size);
		goto out;
		}

		block_truncate_page(inode->i_mapping, inode->i_size, ufs_getfrag_block);

		while (1) {
		retry = ufs_trunc_direct(inode);
		retry \|= ufs_trunc_indirect(inode, UFS_IND_BLOCK,
		ufs_get_direct_data_ptr(uspi, ufsi,
		UFS_IND_BLOCK));
		retry \|= ufs_trunc_dindirect(inode, UFS_IND_BLOCK + uspi->s_apb,
		ufs_get_direct_data_ptr(uspi, ufsi,
		UFS_DIND_BLOCK));
		retry \|= ufs_trunc_tindirect (inode);
		if (!retry)
		break;
		if (IS_SYNC(inode) && (inode->i_state & I_DIRTY))
		ufs_sync_inode (inode);
		yield();
		}

		inode->i_mtime = inode->i_ctime = CURRENT_TIME_SEC;
		ufsi->i_lastfrag = DIRECT_FRAGMENT;
		mark_inode_dirty(inode);
		out:
		UFSD("EXIT: err %d\n", err);
		return err;
		}

		int ufs_setattr(struct dentry dentry, struct iattr attr)
		{
		struct inode *inode = d_inode(dentry);
		unsigned int ia_valid = attr->ia_valid;
		int error;

		error = inode_change_ok(inode, attr);
		if (error)
		return error;

		if (ia_valid & ATTR_SIZE && attr->ia_size != inode->i_size) {
		loff_t old_i_size = inode->i_size;

		/* XXX(truncate): truncate_setsize should be called last */
		truncate_setsize(inode, attr->ia_size);

		lock_ufs(inode->i_sb);
		error = ufs_truncate(inode, old_i_size);
		unlock_ufs(inode->i_sb);
		if (error)
		return error;
		}

		setattr_copy(inode, attr);
		mark_inode_dirty(inode);
		return 0;
		}

		const struct inode_operations ufs_file_inode_operations = {
		.setattr = ufs_setattr,
		};