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-rw-r--r--fs/afs/mntpt.c24
-rw-r--r--fs/binfmt_elf_fdpic.c7
-rw-r--r--fs/binfmt_flat.c2
-rw-r--r--fs/block_dev.c17
-rw-r--r--fs/ext4/extents.c1
-rw-r--r--fs/ext4/inode.c3
-rw-r--r--fs/ext4/mballoc.c21
-rw-r--r--fs/ioctl.c92
-rw-r--r--fs/jfs/inode.c2
-rw-r--r--fs/jfs/jfs_dmap.c16
-rw-r--r--fs/jfs/jfs_dmap.h6
-rw-r--r--fs/jfs/jfs_inode.h1
-rw-r--r--fs/jfs/namei.c4
-rw-r--r--fs/jfs/resize.c6
-rw-r--r--fs/jfs/symlink.c14
-rw-r--r--fs/logfs/gc.c8
-rw-r--r--fs/logfs/journal.c29
-rw-r--r--fs/logfs/logfs.h15
-rw-r--r--fs/logfs/readwrite.c75
-rw-r--r--fs/logfs/segment.c8
-rw-r--r--fs/logfs/super.c11
-rw-r--r--fs/nfsd/nfs4xdr.c8
-rw-r--r--fs/proc/base.c2
-rw-r--r--fs/reiserfs/dir.c2
-rw-r--r--fs/reiserfs/xattr.c19
-rw-r--r--fs/squashfs/block.c5
-rw-r--r--fs/squashfs/super.c4
-rw-r--r--fs/squashfs/zlib_wrapper.c3
-rw-r--r--fs/xfs/xfs_dfrag.c22
29 files changed, 249 insertions, 178 deletions
diff --git a/fs/afs/mntpt.c b/fs/afs/mntpt.c
index 5e813a816ce..b3feddc4f7d 100644
--- a/fs/afs/mntpt.c
+++ b/fs/afs/mntpt.c
@@ -138,9 +138,9 @@ static struct vfsmount *afs_mntpt_do_automount(struct dentry *mntpt)
{
struct afs_super_info *super;
struct vfsmount *mnt;
- struct page *page = NULL;
+ struct page *page;
size_t size;
- char *buf, *devname = NULL, *options = NULL;
+ char *buf, *devname, *options;
int ret;
_enter("{%s}", mntpt->d_name.name);
@@ -150,22 +150,22 @@ static struct vfsmount *afs_mntpt_do_automount(struct dentry *mntpt)
ret = -EINVAL;
size = mntpt->d_inode->i_size;
if (size > PAGE_SIZE - 1)
- goto error;
+ goto error_no_devname;
ret = -ENOMEM;
devname = (char *) get_zeroed_page(GFP_KERNEL);
if (!devname)
- goto error;
+ goto error_no_devname;
options = (char *) get_zeroed_page(GFP_KERNEL);
if (!options)
- goto error;
+ goto error_no_options;
/* read the contents of the AFS special symlink */
page = read_mapping_page(mntpt->d_inode->i_mapping, 0, NULL);
if (IS_ERR(page)) {
ret = PTR_ERR(page);
- goto error;
+ goto error_no_page;
}
ret = -EIO;
@@ -196,12 +196,12 @@ static struct vfsmount *afs_mntpt_do_automount(struct dentry *mntpt)
return mnt;
error:
- if (page)
- page_cache_release(page);
- if (devname)
- free_page((unsigned long) devname);
- if (options)
- free_page((unsigned long) options);
+ page_cache_release(page);
+error_no_page:
+ free_page((unsigned long) options);
+error_no_options:
+ free_page((unsigned long) devname);
+error_no_devname:
_leave(" = %d", ret);
return ERR_PTR(ret);
}
diff --git a/fs/binfmt_elf_fdpic.c b/fs/binfmt_elf_fdpic.c
index 7ab23e006e4..2c5f9a0e5d7 100644
--- a/fs/binfmt_elf_fdpic.c
+++ b/fs/binfmt_elf_fdpic.c
@@ -1005,15 +1005,8 @@ static int elf_fdpic_map_file_constdisp_on_uclinux(
}
} else if (!mm->start_data) {
mm->start_data = seg->addr;
-#ifndef CONFIG_MMU
mm->end_data = seg->addr + phdr->p_memsz;
-#endif
}
-
-#ifdef CONFIG_MMU
- if (seg->addr + phdr->p_memsz > mm->end_data)
- mm->end_data = seg->addr + phdr->p_memsz;
-#endif
}
seg++;
diff --git a/fs/binfmt_flat.c b/fs/binfmt_flat.c
index e0e769bdca5..49566c1687d 100644
--- a/fs/binfmt_flat.c
+++ b/fs/binfmt_flat.c
@@ -355,7 +355,7 @@ calc_reloc(unsigned long r, struct lib_info *p, int curid, int internalp)
if (!flat_reloc_valid(r, start_brk - start_data + text_len)) {
printk("BINFMT_FLAT: reloc outside program 0x%x (0 - 0x%x/0x%x)",
- (int) r,(int)(start_brk-start_code),(int)text_len);
+ (int) r,(int)(start_brk-start_data+text_len),(int)text_len);
goto failed;
}
diff --git a/fs/block_dev.c b/fs/block_dev.c
index 2a6d0193f13..6dcee88c2e5 100644
--- a/fs/block_dev.c
+++ b/fs/block_dev.c
@@ -406,16 +406,23 @@ static loff_t block_llseek(struct file *file, loff_t offset, int origin)
int blkdev_fsync(struct file *filp, struct dentry *dentry, int datasync)
{
- struct block_device *bdev = I_BDEV(filp->f_mapping->host);
+ struct inode *bd_inode = filp->f_mapping->host;
+ struct block_device *bdev = I_BDEV(bd_inode);
int error;
- error = sync_blockdev(bdev);
- if (error)
- return error;
-
+ /*
+ * There is no need to serialise calls to blkdev_issue_flush with
+ * i_mutex and doing so causes performance issues with concurrent
+ * O_SYNC writers to a block device.
+ */
+ mutex_unlock(&bd_inode->i_mutex);
+
error = blkdev_issue_flush(bdev, NULL);
if (error == -EOPNOTSUPP)
error = 0;
+
+ mutex_lock(&bd_inode->i_mutex);
+
return error;
}
EXPORT_SYMBOL(blkdev_fsync);
diff --git a/fs/ext4/extents.c b/fs/ext4/extents.c
index 94c8ee81f5e..236b834b4ca 100644
--- a/fs/ext4/extents.c
+++ b/fs/ext4/extents.c
@@ -3879,6 +3879,7 @@ static int ext4_xattr_fiemap(struct inode *inode,
physical += offset;
length = EXT4_SB(inode->i_sb)->s_inode_size - offset;
flags |= FIEMAP_EXTENT_DATA_INLINE;
+ brelse(iloc.bh);
} else { /* external block */
physical = EXT4_I(inode)->i_file_acl << blockbits;
length = inode->i_sb->s_blocksize;
diff --git a/fs/ext4/inode.c b/fs/ext4/inode.c
index 5381802d605..81d60541284 100644
--- a/fs/ext4/inode.c
+++ b/fs/ext4/inode.c
@@ -5375,7 +5375,7 @@ int ext4_write_inode(struct inode *inode, struct writeback_control *wbc)
} else {
struct ext4_iloc iloc;
- err = ext4_get_inode_loc(inode, &iloc);
+ err = __ext4_get_inode_loc(inode, &iloc, 0);
if (err)
return err;
if (wbc->sync_mode == WB_SYNC_ALL)
@@ -5386,6 +5386,7 @@ int ext4_write_inode(struct inode *inode, struct writeback_control *wbc)
(unsigned long long)iloc.bh->b_blocknr);
err = -EIO;
}
+ brelse(iloc.bh);
}
return err;
}
diff --git a/fs/ext4/mballoc.c b/fs/ext4/mballoc.c
index bde9d0b170c..b423a364dca 100644
--- a/fs/ext4/mballoc.c
+++ b/fs/ext4/mballoc.c
@@ -2535,6 +2535,17 @@ static void release_blocks_on_commit(journal_t *journal, transaction_t *txn)
mb_debug(1, "gonna free %u blocks in group %u (0x%p):",
entry->count, entry->group, entry);
+ if (test_opt(sb, DISCARD)) {
+ ext4_fsblk_t discard_block;
+
+ discard_block = entry->start_blk +
+ ext4_group_first_block_no(sb, entry->group);
+ trace_ext4_discard_blocks(sb,
+ (unsigned long long)discard_block,
+ entry->count);
+ sb_issue_discard(sb, discard_block, entry->count);
+ }
+
err = ext4_mb_load_buddy(sb, entry->group, &e4b);
/* we expect to find existing buddy because it's pinned */
BUG_ON(err != 0);
@@ -2556,16 +2567,6 @@ static void release_blocks_on_commit(journal_t *journal, transaction_t *txn)
page_cache_release(e4b.bd_bitmap_page);
}
ext4_unlock_group(sb, entry->group);
- if (test_opt(sb, DISCARD)) {
- ext4_fsblk_t discard_block;
-
- discard_block = entry->start_blk +
- ext4_group_first_block_no(sb, entry->group);
- trace_ext4_discard_blocks(sb,
- (unsigned long long)discard_block,
- entry->count);
- sb_issue_discard(sb, discard_block, entry->count);
- }
kmem_cache_free(ext4_free_ext_cachep, entry);
ext4_mb_release_desc(&e4b);
}
diff --git a/fs/ioctl.c b/fs/ioctl.c
index 6c751106c2e..7faefb4da93 100644
--- a/fs/ioctl.c
+++ b/fs/ioctl.c
@@ -228,14 +228,23 @@ static int ioctl_fiemap(struct file *filp, unsigned long arg)
#ifdef CONFIG_BLOCK
-#define blk_to_logical(inode, blk) (blk << (inode)->i_blkbits)
-#define logical_to_blk(inode, offset) (offset >> (inode)->i_blkbits);
+static inline sector_t logical_to_blk(struct inode *inode, loff_t offset)
+{
+ return (offset >> inode->i_blkbits);
+}
+
+static inline loff_t blk_to_logical(struct inode *inode, sector_t blk)
+{
+ return (blk << inode->i_blkbits);
+}
/**
* __generic_block_fiemap - FIEMAP for block based inodes (no locking)
- * @inode - the inode to map
- * @arg - the pointer to userspace where we copy everything to
- * @get_block - the fs's get_block function
+ * @inode: the inode to map
+ * @fieinfo: the fiemap info struct that will be passed back to userspace
+ * @start: where to start mapping in the inode
+ * @len: how much space to map
+ * @get_block: the fs's get_block function
*
* This does FIEMAP for block based inodes. Basically it will just loop
* through get_block until we hit the number of extents we want to map, or we
@@ -250,58 +259,63 @@ static int ioctl_fiemap(struct file *filp, unsigned long arg)
*/
int __generic_block_fiemap(struct inode *inode,
- struct fiemap_extent_info *fieinfo, u64 start,
- u64 len, get_block_t *get_block)
+ struct fiemap_extent_info *fieinfo, loff_t start,
+ loff_t len, get_block_t *get_block)
{
- struct buffer_head tmp;
- unsigned long long start_blk;
- long long length = 0, map_len = 0;
+ struct buffer_head map_bh;
+ sector_t start_blk, last_blk;
+ loff_t isize = i_size_read(inode);
u64 logical = 0, phys = 0, size = 0;
u32 flags = FIEMAP_EXTENT_MERGED;
- int ret = 0, past_eof = 0, whole_file = 0;
+ bool past_eof = false, whole_file = false;
+ int ret = 0;
- if ((ret = fiemap_check_flags(fieinfo, FIEMAP_FLAG_SYNC)))
+ ret = fiemap_check_flags(fieinfo, FIEMAP_FLAG_SYNC);
+ if (ret)
return ret;
- start_blk = logical_to_blk(inode, start);
-
- length = (long long)min_t(u64, len, i_size_read(inode));
- if (length < len)
- whole_file = 1;
+ /*
+ * Either the i_mutex or other appropriate locking needs to be held
+ * since we expect isize to not change at all through the duration of
+ * this call.
+ */
+ if (len >= isize) {
+ whole_file = true;
+ len = isize;
+ }
- map_len = length;
+ start_blk = logical_to_blk(inode, start);
+ last_blk = logical_to_blk(inode, start + len - 1);
do {
/*
* we set b_size to the total size we want so it will map as
* many contiguous blocks as possible at once
*/
- memset(&tmp, 0, sizeof(struct buffer_head));
- tmp.b_size = map_len;
+ memset(&map_bh, 0, sizeof(struct buffer_head));
+ map_bh.b_size = len;
- ret = get_block(inode, start_blk, &tmp, 0);
+ ret = get_block(inode, start_blk, &map_bh, 0);
if (ret)
break;
/* HOLE */
- if (!buffer_mapped(&tmp)) {
- length -= blk_to_logical(inode, 1);
+ if (!buffer_mapped(&map_bh)) {
start_blk++;
/*
- * we want to handle the case where there is an
+ * We want to handle the case where there is an
* allocated block at the front of the file, and then
* nothing but holes up to the end of the file properly,
* to make sure that extent at the front gets properly
* marked with FIEMAP_EXTENT_LAST
*/
if (!past_eof &&
- blk_to_logical(inode, start_blk) >=
- blk_to_logical(inode, 0)+i_size_read(inode))
+ blk_to_logical(inode, start_blk) >= isize)
past_eof = 1;
/*
- * first hole after going past the EOF, this is our
+ * First hole after going past the EOF, this is our
* last extent
*/
if (past_eof && size) {
@@ -309,15 +323,18 @@ int __generic_block_fiemap(struct inode *inode,
ret = fiemap_fill_next_extent(fieinfo, logical,
phys, size,
flags);
- break;
+ } else if (size) {
+ ret = fiemap_fill_next_extent(fieinfo, logical,
+ phys, size, flags);
+ size = 0;
}
/* if we have holes up to/past EOF then we're done */
- if (length <= 0 || past_eof)
+ if (start_blk > last_blk || past_eof || ret)
break;
} else {
/*
- * we have gone over the length of what we wanted to
+ * We have gone over the length of what we wanted to
* map, and it wasn't the entire file, so add the extent
* we got last time and exit.
*
@@ -331,7 +348,7 @@ int __generic_block_fiemap(struct inode *inode,
* are good to go, just add the extent to the fieinfo
* and break
*/
- if (length <= 0 && !whole_file) {
+ if (start_blk > last_blk && !whole_file) {
ret = fiemap_fill_next_extent(fieinfo, logical,
phys, size,
flags);
@@ -351,11 +368,10 @@ int __generic_block_fiemap(struct inode *inode,
}
logical = blk_to_logical(inode, start_blk);
- phys = blk_to_logical(inode, tmp.b_blocknr);
- size = tmp.b_size;
+ phys = blk_to_logical(inode, map_bh.b_blocknr);
+ size = map_bh.b_size;
flags = FIEMAP_EXTENT_MERGED;
- length -= tmp.b_size;
start_blk += logical_to_blk(inode, size);
/*
@@ -363,15 +379,13 @@ int __generic_block_fiemap(struct inode *inode,
* soon as we find a hole that the last extent we found
* is marked with FIEMAP_EXTENT_LAST
*/
- if (!past_eof &&
- logical+size >=
- blk_to_logical(inode, 0)+i_size_read(inode))
- past_eof = 1;
+ if (!past_eof && logical + size >= isize)
+ past_eof = true;
}
cond_resched();
} while (1);
- /* if ret is 1 then we just hit the end of the extent array */
+ /* If ret is 1 then we just hit the end of the extent array */
if (ret == 1)
ret = 0;
diff --git a/fs/jfs/inode.c b/fs/jfs/inode.c
index 9dd126276c9..ed9ba6fe04f 100644
--- a/fs/jfs/inode.c
+++ b/fs/jfs/inode.c
@@ -61,7 +61,7 @@ struct inode *jfs_iget(struct super_block *sb, unsigned long ino)
inode->i_op = &page_symlink_inode_operations;
inode->i_mapping->a_ops = &jfs_aops;
} else {
- inode->i_op = &jfs_symlink_inode_operations;
+ inode->i_op = &jfs_fast_symlink_inode_operations;
/*
* The inline data should be null-terminated, but
* don't let on-disk corruption crash the kernel
diff --git a/fs/jfs/jfs_dmap.c b/fs/jfs/jfs_dmap.c
index 6c4dfcbf3f5..9e2f6a72166 100644
--- a/fs/jfs/jfs_dmap.c
+++ b/fs/jfs/jfs_dmap.c
@@ -196,7 +196,7 @@ int dbMount(struct inode *ipbmap)
bmp->db_maxag = le32_to_cpu(dbmp_le->dn_maxag);
bmp->db_agpref = le32_to_cpu(dbmp_le->dn_agpref);
bmp->db_aglevel = le32_to_cpu(dbmp_le->dn_aglevel);
- bmp->db_agheigth = le32_to_cpu(dbmp_le->dn_agheigth);
+ bmp->db_agheight = le32_to_cpu(dbmp_le->dn_agheight);
bmp->db_agwidth = le32_to_cpu(dbmp_le->dn_agwidth);
bmp->db_agstart = le32_to_cpu(dbmp_le->dn_agstart);
bmp->db_agl2size = le32_to_cpu(dbmp_le->dn_agl2size);
@@ -288,7 +288,7 @@ int dbSync(struct inode *ipbmap)
dbmp_le->dn_maxag = cpu_to_le32(bmp->db_maxag);
dbmp_le->dn_agpref = cpu_to_le32(bmp->db_agpref);
dbmp_le->dn_aglevel = cpu_to_le32(bmp->db_aglevel);
- dbmp_le->dn_agheigth = cpu_to_le32(bmp->db_agheigth);
+ dbmp_le->dn_agheight = cpu_to_le32(bmp->db_agheight);
dbmp_le->dn_agwidth = cpu_to_le32(bmp->db_agwidth);
dbmp_le->dn_agstart = cpu_to_le32(bmp->db_agstart);
dbmp_le->dn_agl2size = cpu_to_le32(bmp->db_agl2size);
@@ -1441,7 +1441,7 @@ dbAllocAG(struct bmap * bmp, int agno, s64 nblocks, int l2nb, s64 * results)
* tree index of this allocation group within the control page.
*/
agperlev =
- (1 << (L2LPERCTL - (bmp->db_agheigth << 1))) / bmp->db_agwidth;
+ (1 << (L2LPERCTL - (bmp->db_agheight << 1))) / bmp->db_agwidth;
ti = bmp->db_agstart + bmp->db_agwidth * (agno & (agperlev - 1));
/* dmap control page trees fan-out by 4 and a single allocation
@@ -1460,7 +1460,7 @@ dbAllocAG(struct bmap * bmp, int agno, s64 nblocks, int l2nb, s64 * results)
* the subtree to find the leftmost leaf that describes this
* free space.
*/
- for (k = bmp->db_agheigth; k > 0; k--) {
+ for (k = bmp->db_agheight; k > 0; k--) {
for (n = 0, m = (ti << 2) + 1; n < 4; n++) {
if (l2nb <= dcp->stree[m + n]) {
ti = m + n;
@@ -3607,7 +3607,7 @@ void dbFinalizeBmap(struct inode *ipbmap)
}
/*
- * compute db_aglevel, db_agheigth, db_width, db_agstart:
+ * compute db_aglevel, db_agheight, db_width, db_agstart:
* an ag is covered in aglevel dmapctl summary tree,
* at agheight level height (from leaf) with agwidth number of nodes
* each, which starts at agstart index node of the smmary tree node
@@ -3616,9 +3616,9 @@ void dbFinalizeBmap(struct inode *ipbmap)
bmp->db_aglevel = BMAPSZTOLEV(bmp->db_agsize);
l2nl =
bmp->db_agl2size - (L2BPERDMAP + bmp->db_aglevel * L2LPERCTL);
- bmp->db_agheigth = l2nl >> 1;
- bmp->db_agwidth = 1 << (l2nl - (bmp->db_agheigth << 1));
- for (i = 5 - bmp->db_agheigth, bmp->db_agstart = 0, n = 1; i > 0;
+ bmp->db_agheight = l2nl >> 1;
+ bmp->db_agwidth = 1 << (l2nl - (bmp->db_agheight << 1));
+ for (i = 5 - bmp->db_agheight, bmp->db_agstart = 0, n = 1; i > 0;
i--) {
bmp->db_agstart += n;
n <<= 2;
diff --git a/fs/jfs/jfs_dmap.h b/fs/jfs/jfs_dmap.h
index 1a6eb41569b..6dcb906c55d 100644
--- a/fs/jfs/jfs_dmap.h
+++ b/fs/jfs/jfs_dmap.h
@@ -210,7 +210,7 @@ struct dbmap_disk {
__le32 dn_maxag; /* 4: max active alloc group number */
__le32 dn_agpref; /* 4: preferred alloc group (hint) */
__le32 dn_aglevel; /* 4: dmapctl level holding the AG */
- __le32 dn_agheigth; /* 4: height in dmapctl of the AG */
+ __le32 dn_agheight; /* 4: height in dmapctl of the AG */
__le32 dn_agwidth; /* 4: width in dmapctl of the AG */
__le32 dn_agstart; /* 4: start tree index at AG height */
__le32 dn_agl2size; /* 4: l2 num of blks per alloc group */
@@ -229,7 +229,7 @@ struct dbmap {
int dn_maxag; /* max active alloc group number */
int dn_agpref; /* preferred alloc group (hint) */
int dn_aglevel; /* dmapctl level holding the AG */
- int dn_agheigth; /* height in dmapctl of the AG */
+ int dn_agheight; /* height in dmapctl of the AG */
int dn_agwidth; /* width in dmapctl of the AG */
int dn_agstart; /* start tree index at AG height */
int dn_agl2size; /* l2 num of blks per alloc group */
@@ -255,7 +255,7 @@ struct bmap {
#define db_agsize db_bmap.dn_agsize
#define db_agl2size db_bmap.dn_agl2size
#define db_agwidth db_bmap.dn_agwidth
-#define db_agheigth db_bmap.dn_agheigth
+#define db_agheight db_bmap.dn_agheight
#define db_agstart db_bmap.dn_agstart
#define db_numag db_bmap.dn_numag
#define db_maxlevel db_bmap.dn_maxlevel
diff --git a/fs/jfs/jfs_inode.h b/fs/jfs/jfs_inode.h
index 79e2c79661d..9e6bda30a6e 100644
--- a/fs/jfs/jfs_inode.h
+++ b/fs/jfs/jfs_inode.h
@@ -48,5 +48,6 @@ extern const struct file_operations jfs_dir_operations;
extern const struct inode_operations jfs_file_inode_operations;
extern const struct file_operations jfs_file_operations;
extern const struct inode_operations jfs_symlink_inode_operations;
+extern const struct inode_operations jfs_fast_symlink_inode_operations;
extern const struct dentry_operations jfs_ci_dentry_operations;
#endif /* _H_JFS_INODE */
diff --git a/fs/jfs/namei.c b/fs/jfs/namei.c
index 4a3e9f39c21..a9cf8e8675b 100644
--- a/fs/jfs/namei.c
+++ b/fs/jfs/namei.c
@@ -956,7 +956,7 @@ static int jfs_symlink(struct inode *dip, struct dentry *dentry,
*/
if (ssize <= IDATASIZE) {
- ip->i_op = &jfs_symlink_inode_operations;
+ ip->i_op = &jfs_fast_symlink_inode_operations;
i_fastsymlink = JFS_IP(ip)->i_inline;
memcpy(i_fastsymlink, name, ssize);
@@ -978,7 +978,7 @@ static int jfs_symlink(struct inode *dip, struct dentry *dentry,
else {
jfs_info("jfs_symlink: allocate extent ip:0x%p", ip);
- ip->i_op = &page_symlink_inode_operations;
+ ip->i_op = &jfs_symlink_inode_operations;
ip->i_mapping->a_ops = &jfs_aops;
/*
diff --git a/fs/jfs/resize.c b/fs/jfs/resize.c
index 7f24a0bb08c..1aba0039f1c 100644
--- a/fs/jfs/resize.c
+++ b/fs/jfs/resize.c
@@ -81,6 +81,7 @@ int jfs_extendfs(struct super_block *sb, s64 newLVSize, int newLogSize)
struct inode *iplist[1];
struct jfs_superblock *j_sb, *j_sb2;
uint old_agsize;
+ int agsizechanged = 0;
struct buffer_head *bh, *bh2;
/* If the volume hasn't grown, get out now */
@@ -333,6 +334,9 @@ int jfs_extendfs(struct super_block *sb, s64 newLVSize, int newLogSize)
*/
if ((rc = dbExtendFS(ipbmap, XAddress, nblocks)))
goto error_out;
+
+ agsizechanged |= (bmp->db_agsize != old_agsize);
+
/*
* the map now has extended to cover additional nblocks:
* dn_mapsize = oldMapsize + nblocks;
@@ -432,7 +436,7 @@ int jfs_extendfs(struct super_block *sb, s64 newLVSize, int newLogSize)
* will correctly identify the new ag);
*/
/* if new AG size the same as old AG size, done! */
- if (bmp->db_agsize != old_agsize) {
+ if (agsizechanged) {
if ((rc = diExtendFS(ipimap, ipbmap)))
goto error_out;
diff --git a/fs/jfs/symlink.c b/fs/jfs/symlink.c
index 4af1a05aad0..205b946d8e0 100644
--- a/fs/jfs/symlink.c
+++ b/fs/jfs/symlink.c
@@ -29,9 +29,21 @@ static void *jfs_follow_link(struct dentry *dentry, struct nameidata *nd)
return NULL;
}
-const struct inode_operations jfs_symlink_inode_operations = {
+const struct inode_operations jfs_fast_symlink_inode_operations = {
.readlink = generic_readlink,
.follow_link = jfs_follow_link,
+ .setattr = jfs_setattr,
+ .setxattr = jfs_setxattr,
+ .getxattr = jfs_getxattr,
+ .listxattr = jfs_listxattr,
+ .removexattr = jfs_removexattr,
+};
+
+const struct inode_operations jfs_symlink_inode_operations = {
+ .readlink = generic_readlink,
+ .follow_link = page_follow_link_light,
+ .put_link = page_put_link,
+ .setattr = jfs_setattr,
.setxattr = jfs_setxattr,
.getxattr = jfs_getxattr,
.listxattr = jfs_listxattr,
diff --git a/fs/logfs/gc.c b/fs/logfs/gc.c
index 84e36f52fe9..76c242fbe1b 100644
--- a/fs/logfs/gc.c
+++ b/fs/logfs/gc.c
@@ -459,6 +459,14 @@ static void __logfs_gc_pass(struct super_block *sb, int target)
struct logfs_block *block;
int round, progress, last_progress = 0;
+ /*
+ * Doing too many changes to the segfile at once would result
+ * in a large number of aliases. Write the journal before
+ * things get out of hand.
+ */
+ if (super->s_shadow_tree.no_shadowed_segments >= MAX_OBJ_ALIASES)
+ logfs_write_anchor(sb);
+
if (no_free_segments(sb) >= target &&
super->s_no_object_aliases < MAX_OBJ_ALIASES)
return;
diff --git a/fs/logfs/journal.c b/fs/logfs/journal.c
index 33bd260b830..fb0a613f885 100644
--- a/fs/logfs/journal.c
+++ b/fs/logfs/journal.c
@@ -389,7 +389,10 @@ static void journal_get_erase_count(struct logfs_area *area)
static int journal_erase_segment(struct logfs_area *area)
{
struct super_block *sb = area->a_sb;
- struct logfs_segment_header sh;
+ union {
+ struct logfs_segment_header sh;
+ unsigned char c[ALIGN(sizeof(struct logfs_segment_header), 16)];
+ } u;
u64 ofs;
int err;
@@ -397,20 +400,21 @@ static int journal_erase_segment(struct logfs_area *area)
if (err)
return err;
- sh.pad = 0;
- sh.type = SEG_JOURNAL;
- sh.level = 0;
- sh.segno = cpu_to_be32(area->a_segno);
- sh.ec = cpu_to_be32(area->a_erase_count);
- sh.gec = cpu_to_be64(logfs_super(sb)->s_gec);
- sh.crc = logfs_crc32(&sh, sizeof(sh), 4);
+ memset(&u, 0, sizeof(u));
+ u.sh.pad = 0;
+ u.sh.type = SEG_JOURNAL;
+ u.sh.level = 0;
+ u.sh.segno = cpu_to_be32(area->a_segno);
+ u.sh.ec = cpu_to_be32(area->a_erase_count);
+ u.sh.gec = cpu_to_be64(logfs_super(sb)->s_gec);
+ u.sh.crc = logfs_crc32(&u.sh, sizeof(u.sh), 4);
/* This causes a bug in segment.c. Not yet. */
//logfs_set_segment_erased(sb, area->a_segno, area->a_erase_count, 0);
ofs = dev_ofs(sb, area->a_segno, 0);
- area->a_used_bytes = ALIGN(sizeof(sh), 16);
- logfs_buf_write(area, ofs, &sh, sizeof(sh));
+ area->a_used_bytes = sizeof(u);
+ logfs_buf_write(area, ofs, &u, sizeof(u));
return 0;
}
@@ -494,6 +498,8 @@ static void account_shadows(struct super_block *sb)
btree_grim_visitor64(&tree->new, (unsigned long)sb, account_shadow);
btree_grim_visitor64(&tree->old, (unsigned long)sb, account_shadow);
+ btree_grim_visitor32(&tree->segment_map, 0, NULL);
+ tree->no_shadowed_segments = 0;
if (li->li_block) {
/*
@@ -607,9 +613,9 @@ static size_t __logfs_write_je(struct super_block *sb, void *buf, u16 type,
if (len == 0)
return logfs_write_header(super, header, 0, type);
+ BUG_ON(len > sb->s_blocksize);
compr_len = logfs_compress(buf, data, len, sb->s_blocksize);
if (compr_len < 0 || type == JE_ANCHOR) {
- BUG_ON(len > sb->s_blocksize);
memcpy(data, buf, len);
compr_len = len;
compr = COMPR_NONE;
@@ -661,6 +667,7 @@ static int logfs_write_je_buf(struct super_block *sb, void *buf, u16 type,
if (ofs < 0)
return ofs;
logfs_buf_write(area, ofs, super->s_compressed_je, len);
+ BUG_ON(super->s_no_je >= MAX_JOURNAL_ENTRIES);
super->s_je_array[super->s_no_je++] = cpu_to_be64(ofs);
return 0;
}
diff --git a/fs/logfs/logfs.h b/fs/logfs/logfs.h
index b84b0eec602..0a3df1a0c93 100644
--- a/fs/logfs/logfs.h
+++ b/fs/logfs/logfs.h
@@ -257,10 +257,14 @@ struct logfs_shadow {
* struct shadow_tree
* @new: shadows where old_ofs==0, indexed by new_ofs
* @old: shadows where old_ofs!=0, indexed by old_ofs
+ * @segment_map: bitfield of segments containing shadows
+ * @no_shadowed_segment: number of segments containing shadows
*/
struct shadow_tree {
struct btree_head64 new;
struct btree_head64 old;
+ struct btree_head32 segment_map;
+ int no_shadowed_segments;
};
struct object_alias_item {
@@ -305,13 +309,14 @@ typedef int write_alias_t(struct super_block *sb, u64 ino, u64 bix,
level_t level, int child_no, __be64 val);
struct logfs_block_ops {
void (*write_block)(struct logfs_block *block);
- gc_level_t (*block_level)(struct logfs_block *block);
void (*free_block)(struct super_block *sb, struct logfs_block*block);
int (*write_alias)(struct super_block *sb,
struct logfs_block *block,
write_alias_t *write_one_alias);
};
+#define MAX_JOURNAL_ENTRIES 256
+
struct logfs_super {
struct mtd_info *s_mtd; /* underlying device */
struct block_device *s_bdev; /* underlying device */
@@ -378,7 +383,7 @@ struct logfs_super {
u32 s_journal_ec[LOGFS_JOURNAL_SEGS]; /* journal erasecounts */
u64 s_last_version;
struct logfs_area *s_journal_area; /* open journal segment */
- __be64 s_je_array[64];
+ __be64 s_je_array[MAX_JOURNAL_ENTRIES];
int s_no_je;
int s_sum_index; /* for the 12 summaries */
@@ -722,4 +727,10 @@ static inline struct logfs_area *get_area(struct super_block *sb,
return logfs_super(sb)->s_area[(__force u8)gc_level];
}
+static inline void logfs_mempool_destroy(mempool_t *pool)
+{
+ if (pool)
+ mempool_destroy(pool);
+}
+
#endif
diff --git a/fs/logfs/readwrite.c b/fs/logfs/readwrite.c
index bff40253dfb..3159db6958e 100644
--- a/fs/logfs/readwrite.c
+++ b/fs/logfs/readwrite.c
@@ -430,25 +430,6 @@ static void inode_write_block(struct logfs_block *block)
}
}
-static gc_level_t inode_block_level(struct logfs_block *block)
-{
- BUG_ON(block->inode->i_ino == LOGFS_INO_MASTER);
- return GC_LEVEL(LOGFS_MAX_LEVELS);
-}
-
-static gc_level_t indirect_block_level(struct logfs_block *block)
-{
- struct page *page;
- struct inode *inode;
- u64 bix;
- level_t level;
-
- page = block->page;
- inode = page->mapping->host;
- logfs_unpack_index(page->index, &bix, &level);
- return expand_level(inode->i_ino, level);
-}
-
/*
* This silences a false, yet annoying gcc warning. I hate it when my editor
* jumps into bitops.h each time I recompile this file.
@@ -587,14 +568,12 @@ static void indirect_free_block(struct super_block *sb,
static struct logfs_block_ops inode_block_ops = {
.write_block = inode_write_block,
- .block_level = inode_block_level,
.free_block = inode_free_block,
.write_alias = inode_write_alias,
};
struct logfs_block_ops indirect_block_ops = {
.write_block = indirect_write_block,
- .block_level = indirect_block_level,
.free_block = indirect_free_block,
.write_alias = indirect_write_alias,
};
@@ -1241,6 +1220,18 @@ static void free_shadow(struct inode *inode, struct logfs_shadow *shadow)
mempool_free(shadow, super->s_shadow_pool);
}
+static void mark_segment(struct shadow_tree *tree, u32 segno)
+{
+ int err;
+
+ if (!btree_lookup32(&tree->segment_map, segno)) {
+ err = btree_insert32(&tree->segment_map, segno, (void *)1,
+ GFP_NOFS);
+ BUG_ON(err);
+ tree->no_shadowed_segments++;
+ }
+}
+
/**
* fill_shadow_tree - Propagate shadow tree changes due to a write
* @inode: Inode owning the page
@@ -1288,6 +1279,8 @@ static void fill_shadow_tree(struct inode *inode, struct page *page,
super->s_dirty_used_bytes += shadow->new_len;
super->s_dirty_free_bytes += shadow->old_len;
+ mark_segment(tree, shadow->old_ofs >> super->s_segshift);
+ mark_segment(tree, shadow->new_ofs >> super->s_segshift);
}
}
@@ -1845,19 +1838,37 @@ static int __logfs_truncate(struct inode *inode, u64 size)
return logfs_truncate_direct(inode, size);
}
-int logfs_truncate(struct inode *inode, u64 size)
+/*
+ * Truncate, by changing the segment file, can consume a fair amount
+ * of resources. So back off from time to time and do some GC.
+ * 8 or 2048 blocks should be well within safety limits even if
+ * every single block resided in a different segment.
+ */
+#define TRUNCATE_STEP (8 * 1024 * 1024)
+int logfs_truncate(struct inode *inode, u64 target)
{
struct super_block *sb = inode->i_sb;
- int err;
+ u64 size = i_size_read(inode);
+ int err = 0;
- logfs_get_wblocks(sb, NULL, 1);
- err = __logfs_truncate(inode, size);
- if (!err)
- err = __logfs_write_inode(inode, 0);
- logfs_put_wblocks(sb, NULL, 1);
+ size = ALIGN(size, TRUNCATE_STEP);
+ while (size > target) {
+ if (size > TRUNCATE_STEP)
+ size -= TRUNCATE_STEP;
+ else
+ size = 0;
+ if (size < target)
+ size = target;
+
+ logfs_get_wblocks(sb, NULL, 1);
+ err = __logfs_truncate(inode, target);
+ if (!err)
+ err = __logfs_write_inode(inode, 0);
+ logfs_put_wblocks(sb, NULL, 1);
+ }
if (!err)
- err = vmtruncate(inode, size);
+ err = vmtruncate(inode, target);
/* I don't trust error recovery yet. */
WARN_ON(err);
@@ -2251,8 +2262,6 @@ void logfs_cleanup_rw(struct super_block *sb)
struct logfs_super *super = logfs_super(sb);
destroy_meta_inode(super->s_segfile_inode);
- if (super->s_block_pool)
- mempool_destroy(super->s_block_pool);
- if (super->s_shadow_pool)
- mempool_destroy(super->s_shadow_pool);
+ logfs_mempool_destroy(super->s_block_pool);
+ logfs_mempool_destroy(super->s_shadow_pool);
}
diff --git a/fs/logfs/segment.c b/fs/logfs/segment.c
index 801a3a14162..f77ce2b470b 100644
--- a/fs/logfs/segment.c
+++ b/fs/logfs/segment.c
@@ -183,14 +183,8 @@ static int btree_write_alias(struct super_block *sb, struct logfs_block *block,
return 0;
}
-static gc_level_t btree_block_level(struct logfs_block *block)
-{
- return expand_level(block->ino, block->level);
-}
-
static struct logfs_block_ops btree_block_ops = {
.write_block = btree_write_block,
- .block_level = btree_block_level,
.free_block = __free_block,
.write_alias = btree_write_alias,
};
@@ -919,7 +913,7 @@ err:
for (i--; i >= 0; i--)
free_area(super->s_area[i]);
free_area(super->s_journal_area);
- mempool_destroy(super->s_alias_pool);
+ logfs_mempool_destroy(super->s_alias_pool);
return -ENOMEM;
}
diff --git a/fs/logfs/super.c b/fs/logfs/super.c
index b60bfac3263..5866ee6e132 100644
--- a/fs/logfs/super.c
+++ b/fs/logfs/super.c
@@ -12,6 +12,7 @@
#include "logfs.h"
#include <linux/bio.h>
#include <linux/slab.h>
+#include <linux/blkdev.h>
#include <linux/mtd/mtd.h>
#include <linux/statfs.h>
#include <linux/buffer_head.h>
@@ -137,6 +138,10 @@ static int logfs_sb_set(struct super_block *sb, void *_super)
sb->s_fs_info = super;
sb->s_mtd = super->s_mtd;
sb->s_bdev = super->s_bdev;
+ if (sb->s_bdev)
+ sb->s_bdi = &bdev_get_queue(sb->s_bdev)->backing_dev_info;
+ if (sb->s_mtd)
+ sb->s_bdi = sb->s_mtd->backing_dev_info;
return 0;
}
@@ -452,6 +457,8 @@ static int logfs_read_sb(struct super_block *sb, int read_only)
btree_init_mempool64(&super->s_shadow_tree.new, super->s_btree_pool);
btree_init_mempool64(&super->s_shadow_tree.old, super->s_btree_pool);
+ btree_init_mempool32(&super->s_shadow_tree.segment_map,
+ super->s_btree_pool);
ret = logfs_init_mapping(sb);
if (ret)
@@ -516,8 +523,8 @@ static void logfs_kill_sb(struct super_block *sb)
if (super->s_erase_page)
__free_page(super->s_erase_page);
super->s_devops->put_device(sb);
- mempool_destroy(super->s_btree_pool);
- mempool_destroy(super->s_alias_pool);
+ logfs_mempool_destroy(super->s_btree_pool);
+ logfs_mempool_destroy(super->s_alias_pool);
kfree(super);
log_super("LogFS: Finished unmounting\n");
}
diff --git a/fs/nfsd/nfs4xdr.c b/fs/nfsd/nfs4xdr.c
index e1703175ee2..34ccf815ea8 100644
--- a/fs/nfsd/nfs4xdr.c
+++ b/fs/nfsd/nfs4xdr.c
@@ -161,10 +161,10 @@ static __be32 *read_buf(struct nfsd4_compoundargs *argp, u32 nbytes)
argp->p = page_address(argp->pagelist[0]);
argp->pagelist++;
if (argp->pagelen < PAGE_SIZE) {
- argp->end = p + (argp->pagelen>>2);
+ argp->end = argp->p + (argp->pagelen>>2);
argp->pagelen = 0;
} else {
- argp->end = p + (PAGE_SIZE>>2);
+ argp->end = argp->p + (PAGE_SIZE>>2);
argp->pagelen -= PAGE_SIZE;
}
memcpy(((char*)p)+avail, argp->p, (nbytes - avail));
@@ -1426,10 +1426,10 @@ nfsd4_decode_compound(struct nfsd4_compoundargs *argp)
argp->p = page_address(argp->pagelist[0]);
argp->pagelist++;
if (argp->pagelen < PAGE_SIZE) {
- argp->end = p + (argp->pagelen>>2);
+ argp->end = argp->p + (argp->pagelen>>2);
argp->pagelen = 0;
} else {
- argp->end = p + (PAGE_SIZE>>2);
+ argp->end = argp->p + (PAGE_SIZE>>2);
argp->pagelen -= PAGE_SIZE;
}
}
diff --git a/fs/proc/base.c b/fs/proc/base.c
index 7621db800a7..8418fcc0a6a 100644
--- a/fs/proc/base.c
+++ b/fs/proc/base.c
@@ -2909,7 +2909,7 @@ out_no_task:
*/
static const struct pid_entry tid_base_stuff[] = {
DIR("fd", S_IRUSR|S_IXUSR, proc_fd_inode_operations, proc_fd_operations),
- DIR("fdinfo", S_IRUSR|S_IXUSR, proc_fdinfo_inode_operations, proc_fd_operations),
+ DIR("fdinfo", S_IRUSR|S_IXUSR, proc_fdinfo_inode_operations, proc_fdinfo_operations),
REG("environ", S_IRUSR, proc_environ_operations),
INF("auxv", S_IRUSR, proc_pid_auxv),
ONE("status", S_IRUGO, proc_pid_status),
diff --git a/fs/reiserfs/dir.c b/fs/reiserfs/dir.c
index f8a6075abf5..07930449a95 100644
--- a/fs/reiserfs/dir.c
+++ b/fs/reiserfs/dir.c
@@ -46,8 +46,6 @@ static inline bool is_privroot_deh(struct dentry *dir,
struct reiserfs_de_head *deh)
{
struct dentry *privroot = REISERFS_SB(dir->d_sb)->priv_root;
- if (reiserfs_expose_privroot(dir->d_sb))
- return 0;
return (dir == dir->d_parent && privroot->d_inode &&
deh->deh_objectid == INODE_PKEY(privroot->d_inode)->k_objectid);
}
diff --git a/fs/reiserfs/xattr.c b/fs/reiserfs/xattr.c
index 4f9586bb763..e7cc00e636d 100644
--- a/fs/reiserfs/xattr.c
+++ b/fs/reiserfs/xattr.c
@@ -554,7 +554,7 @@ reiserfs_xattr_set_handle(struct reiserfs_transaction_handle *th,
if (!err && new_size < i_size_read(dentry->d_inode)) {
struct iattr newattrs = {
.ia_ctime = current_fs_time(inode->i_sb),
- .ia_size = buffer_size,
+ .ia_size = new_size,
.ia_valid = ATTR_SIZE | ATTR_CTIME,
};
@@ -973,21 +973,13 @@ int reiserfs_permission(struct inode *inode, int mask)
return generic_permission(inode, mask, NULL);
}
-/* This will catch lookups from the fs root to .reiserfs_priv */
-static int
-xattr_lookup_poison(struct dentry *dentry, struct qstr *q1, struct qstr *name)
+static int xattr_hide_revalidate(struct dentry *dentry, struct nameidata *nd)
{
- struct dentry *priv_root = REISERFS_SB(dentry->d_sb)->priv_root;
- if (container_of(q1, struct dentry, d_name) == priv_root)
- return -ENOENT;
- if (q1->len == name->len &&
- !memcmp(q1->name, name->name, name->len))
- return 0;
- return 1;
+ return -EPERM;
}
static const struct dentry_operations xattr_lookup_poison_ops = {
- .d_compare = xattr_lookup_poison,
+ .d_revalidate = xattr_hide_revalidate,
};
int reiserfs_lookup_privroot(struct super_block *s)
@@ -1001,8 +993,7 @@ int reiserfs_lookup_privroot(struct super_block *s)
strlen(PRIVROOT_NAME));
if (!IS_ERR(dentry)) {
REISERFS_SB(s)->priv_root = dentry;
- if (!reiserfs_expose_privroot(s))
- s->s_root->d_op = &xattr_lookup_poison_ops;
+ dentry->d_op = &xattr_lookup_poison_ops;
if (dentry->d_inode)
dentry->d_inode->i_flags |= S_PRIVATE;
} else
diff --git a/fs/squashfs/block.c b/fs/squashfs/block.c
index 1cb0d81b164..653c030eb84 100644
--- a/fs/squashfs/block.c
+++ b/fs/squashfs/block.c
@@ -87,9 +87,8 @@ int squashfs_read_data(struct super_block *sb, void **buffer, u64 index,
u64 cur_index = index >> msblk->devblksize_log2;
int bytes, compressed, b = 0, k = 0, page = 0, avail;
-
- bh = kcalloc((msblk->block_size >> msblk->devblksize_log2) + 1,
- sizeof(*bh), GFP_KERNEL);
+ bh = kcalloc(((srclength + msblk->devblksize - 1)
+ >> msblk->devblksize_log2) + 1, sizeof(*bh), GFP_KERNEL);
if (bh == NULL)
return -ENOMEM;
diff --git a/fs/squashfs/super.c b/fs/squashfs/super.c
index 3550aec2f65..48b6f4a385a 100644
--- a/fs/squashfs/super.c
+++ b/fs/squashfs/super.c
@@ -275,7 +275,8 @@ allocate_root:
err = squashfs_read_inode(root, root_inode);
if (err) {
- iget_failed(root);
+ make_bad_inode(root);
+ iput(root);
goto failed_mount;
}
insert_inode_hash(root);
@@ -353,6 +354,7 @@ static void squashfs_put_super(struct super_block *sb)
kfree(sbi->id_table);
kfree(sbi->fragment_index);
kfree(sbi->meta_index);
+ kfree(sbi->inode_lookup_table);
kfree(sb->s_fs_info);
sb->s_fs_info = NULL;
}
diff --git a/fs/squashfs/zlib_wrapper.c b/fs/squashfs/zlib_wrapper.c
index 15a03d0fb9f..7a603874e48 100644
--- a/fs/squashfs/zlib_wrapper.c
+++ b/fs/squashfs/zlib_wrapper.c
@@ -128,8 +128,9 @@ static int zlib_uncompress(struct squashfs_sb_info *msblk, void **buffer,
goto release_mutex;
}
+ length = stream->total_out;
mutex_unlock(&msblk->read_data_mutex);
- return stream->total_out;
+ return length;
release_mutex:
mutex_unlock(&msblk->read_data_mutex);
diff --git a/fs/xfs/xfs_dfrag.c b/fs/xfs/xfs_dfrag.c
index cd27c9d6c71..5bba29a0781 100644
--- a/fs/xfs/xfs_dfrag.c
+++ b/fs/xfs/xfs_dfrag.c
@@ -177,16 +177,26 @@ xfs_swap_extents_check_format(
XFS_IFORK_NEXTENTS(ip, XFS_DATA_FORK) > tip->i_df.if_ext_max)
return EINVAL;
- /* Check root block of temp in btree form to max in target */
+ /*
+ * If we are in a btree format, check that the temp root block will fit
+ * in the target and that it has enough extents to be in btree format
+ * in the target.
+ *
+ * Note that we have to be careful to allow btree->extent conversions
+ * (a common defrag case) which will occur when the temp inode is in
+ * extent format...
+ */
if (tip->i_d.di_format == XFS_DINODE_FMT_BTREE &&
- XFS_IFORK_BOFF(ip) &&
- tip->i_df.if_broot_bytes > XFS_IFORK_BOFF(ip))
+ ((XFS_IFORK_BOFF(ip) &&
+ tip->i_df.if_broot_bytes > XFS_IFORK_BOFF(ip)) ||
+ XFS_IFORK_NEXTENTS(tip, XFS_DATA_FORK) <= ip->i_df.if_ext_max))
return EINVAL;
- /* Check root block of target in btree form to max in temp */
+ /* Reciprocal target->temp btree format checks */
if (ip->i_d.di_format == XFS_DINODE_FMT_BTREE &&
- XFS_IFORK_BOFF(tip) &&
- ip->i_df.if_broot_bytes > XFS_IFORK_BOFF(tip))
+ ((XFS_IFORK_BOFF(tip) &&
+ ip->i_df.if_broot_bytes > XFS_IFORK_BOFF(tip)) ||
+ XFS_IFORK_NEXTENTS(ip, XFS_DATA_FORK) <= tip->i_df.if_ext_max))
return EINVAL;
return 0;
generated by cgit v1.2.3-70-g09d2 (git 2.46.0) at 2024-10-07 01:28:18 +0000