AcoSail/kernel_optimize_test
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minix: drop vmtruncate

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Removed vmtruncate

Signed-off-by: Marco Stornelli <marco.stornelli@gmail.com>
Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
This commit is contained in:
Marco Stornelli 2012-12-15 11:56:25 +01:00 committed by Al Viro
parent 5dfc2821e8
commit 7fc7cd00f6
2 changed files with 16 additions and 7 deletions
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6
fs/minix/file.c
View File

@ -34,9 +34,12 @@ static int minix_setattr(struct dentry *dentry, struct iattr *attr)
if ((attr->ia_valid & ATTR_SIZE) &&
attr->ia_size != i_size_read(inode)) {
error = vmtruncate(inode, attr->ia_size);
error = inode_newsize_ok(inode, attr->ia_size);
if (error)
return error;
truncate_setsize(inode, attr->ia_size);
minix_truncate(inode);
}
setattr_copy(inode, attr);
@ -45,7 +48,6 @@ static int minix_setattr(struct dentry *dentry, struct iattr *attr)
}
const struct inode_operations minix_file_inode_operations = {
.truncate = minix_truncate,
.setattr = minix_setattr,
.getattr = minix_getattr,
};

17
fs/minix/inode.c
View File

@ -395,6 +395,16 @@ int minix_prepare_chunk(struct page *page, loff_t pos, unsigned len)
return __block_write_begin(page, pos, len, minix_get_block);
}
static void minix_write_failed(struct address_space *mapping, loff_t to)
{
struct inode *inode = mapping->host;
if (to > inode->i_size) {
truncate_pagecache(inode, to, inode->i_size);
minix_truncate(inode);
}
}
static int minix_write_begin(struct file *file, struct address_space *mapping,
loff_t pos, unsigned len, unsigned flags,
struct page **pagep, void **fsdata)
@ -403,11 +413,8 @@ static int minix_write_begin(struct file *file, struct address_space *mapping,
ret = block_write_begin(mapping, pos, len, flags, pagep,
minix_get_block);
if (unlikely(ret)) {
loff_t isize = mapping->host->i_size;
if (pos + len > isize)
vmtruncate(mapping->host, isize);
}
if (unlikely(ret))
minix_write_failed(mapping, pos + len);
return ret;
}