Convert simple filesystems: ramfs, configfs, sysfs, block_dev to new truncate
sequence.
Cc: Christoph Hellwig <hch@xxxxxx>
Signed-off-by: Nick Piggin <npiggin@xxxxxxx>
---
fs/block_dev.c | 9 +++++----
fs/configfs/inode.c | 10 +++++++---
fs/ramfs/file-mmu.c | 1 +
fs/ramfs/file-nommu.c | 7 ++++---
fs/sysfs/inode.c | 6 +-----
5 files changed, 18 insertions(+), 15 deletions(-)
Index: linux-2.6/fs/configfs/inode.c
===================================================================
--- linux-2.6.orig/fs/configfs/inode.c
+++ linux-2.6/fs/configfs/inode.c
@@ -78,9 +78,13 @@ int configfs_setattr(struct dentry * den
if (error)
return error;
- error = inode_setattr(inode, iattr);
- if (error)
- return error;
+ if (iattr->ia_valid & ATTR_SIZE) {
+ error = simple_setsize(inode, iattr->ia_size);
+ if (error)
+ return error;
+ }
+
+ generic_setattr(inode, iattr);
if (!sd_iattr) {
/* setting attributes for the first time, allocate now */
Index: linux-2.6/fs/ramfs/file-mmu.c
===================================================================
--- linux-2.6.orig/fs/ramfs/file-mmu.c
+++ linux-2.6/fs/ramfs/file-mmu.c
@@ -50,5 +50,6 @@ const struct file_operations ramfs_file_
};
const struct inode_operations ramfs_file_inode_operations = {
+ .setattr = simple_setattr,
.getattr = simple_getattr,
};
Index: linux-2.6/fs/ramfs/file-nommu.c
===================================================================
--- linux-2.6.orig/fs/ramfs/file-nommu.c
+++ linux-2.6/fs/ramfs/file-nommu.c
@@ -146,7 +146,7 @@ static int ramfs_nommu_resize(struct ino
return ret;
}
- ret = vmtruncate(inode, newsize);
+ ret = simple_setsize(inode, newsize);
return ret;
}
@@ -169,7 +169,8 @@ static int ramfs_nommu_setattr(struct de
/* pick out size-changing events */
if (ia->ia_valid & ATTR_SIZE) {
- loff_t size = i_size_read(inode);
+ loff_t size = inode->i_size;
+
if (ia->ia_size != size) {
ret = ramfs_nommu_resize(inode, ia->ia_size, size);
if (ret < 0 || ia->ia_valid == ATTR_SIZE)
@@ -182,7 +183,7 @@ static int ramfs_nommu_setattr(struct de
}
}
- ret = inode_setattr(inode, ia);
+ generic_setattr(inode, ia);
out:
ia->ia_valid = old_ia_valid;
return ret;
Index: linux-2.6/fs/sysfs/inode.c
===================================================================
--- linux-2.6.orig/fs/sysfs/inode.c
+++ linux-2.6/fs/sysfs/inode.c
@@ -117,13 +117,13 @@ int sysfs_setattr(struct dentry *dentry,
if (error)
goto out;
- iattr->ia_valid &= ~ATTR_SIZE; /* ignore size changes */
-
- error = inode_setattr(inode, iattr);
+ error = sysfs_sd_setattr(sd, iattr);
if (error)
goto out;
- error = sysfs_sd_setattr(sd, iattr);
+ /* this ignores size changes */
+ generic_setattr(inode, iattr);
+
out:
mutex_unlock(&sysfs_mutex);
return error;
Index: linux-2.6/fs/block_dev.c
===================================================================
--- linux-2.6.orig/fs/block_dev.c
+++ linux-2.6/fs/block_dev.c
@@ -172,8 +172,9 @@ blkdev_direct_IO(int rw, struct kiocb *i
struct file *file = iocb->ki_filp;
struct inode *inode = file->f_mapping->host;
- return blockdev_direct_IO_no_locking(rw, iocb, inode, I_BDEV(inode),
- iov, offset, nr_segs, blkdev_get_blocks, NULL);
+ return blockdev_direct_IO_no_locking_newtrunc(rw, iocb, inode,
+ I_BDEV(inode), iov, offset, nr_segs,
+ blkdev_get_blocks, NULL);
}
int __sync_blockdev(struct block_device *bdev, int wait)
@@ -309,8 +310,8 @@ static int blkdev_write_begin(struct fil
struct page **pagep, void **fsdata)
{
*pagep = NULL;
- return block_write_begin(file, mapping, pos, len, flags, pagep, fsdata,
- blkdev_get_block);
+ return block_write_begin_newtrunc(file, mapping, pos, len, flags,
+ pagep, fsdata, blkdev_get_block);
}
static int blkdev_write_end(struct file *file, struct address_space *mapping,
--
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