mirror of
https://github.com/AuxXxilium/linux_dsm_epyc7002.git
synced 2024-11-24 21:50:53 +07:00
4e34e719e4
Replace the ->check_acl method with a ->get_acl method that simply reads an ACL from disk after having a cache miss. This means we can replace the ACL checking boilerplate code with a single implementation in namei.c. Signed-off-by: Christoph Hellwig <hch@lst.de> Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
108 lines
2.8 KiB
C
108 lines
2.8 KiB
C
/*
|
|
* linux/fs/ext2/file.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/file.c
|
|
*
|
|
* Copyright (C) 1991, 1992 Linus Torvalds
|
|
*
|
|
* ext2 fs regular file handling primitives
|
|
*
|
|
* 64-bit file support on 64-bit platforms by Jakub Jelinek
|
|
* (jj@sunsite.ms.mff.cuni.cz)
|
|
*/
|
|
|
|
#include <linux/time.h>
|
|
#include <linux/pagemap.h>
|
|
#include <linux/quotaops.h>
|
|
#include "ext2.h"
|
|
#include "xattr.h"
|
|
#include "acl.h"
|
|
|
|
/*
|
|
* Called when filp is released. This happens when all file descriptors
|
|
* for a single struct file are closed. Note that different open() calls
|
|
* for the same file yield different struct file structures.
|
|
*/
|
|
static int ext2_release_file (struct inode * inode, struct file * filp)
|
|
{
|
|
if (filp->f_mode & FMODE_WRITE) {
|
|
mutex_lock(&EXT2_I(inode)->truncate_mutex);
|
|
ext2_discard_reservation(inode);
|
|
mutex_unlock(&EXT2_I(inode)->truncate_mutex);
|
|
}
|
|
return 0;
|
|
}
|
|
|
|
int ext2_fsync(struct file *file, loff_t start, loff_t end, int datasync)
|
|
{
|
|
int ret;
|
|
struct super_block *sb = file->f_mapping->host->i_sb;
|
|
struct address_space *mapping = sb->s_bdev->bd_inode->i_mapping;
|
|
|
|
ret = generic_file_fsync(file, start, end, datasync);
|
|
if (ret == -EIO || test_and_clear_bit(AS_EIO, &mapping->flags)) {
|
|
/* We don't really know where the IO error happened... */
|
|
ext2_error(sb, __func__,
|
|
"detected IO error when writing metadata buffers");
|
|
ret = -EIO;
|
|
}
|
|
return ret;
|
|
}
|
|
|
|
/*
|
|
* We have mostly NULL's here: the current defaults are ok for
|
|
* the ext2 filesystem.
|
|
*/
|
|
const struct file_operations ext2_file_operations = {
|
|
.llseek = generic_file_llseek,
|
|
.read = do_sync_read,
|
|
.write = do_sync_write,
|
|
.aio_read = generic_file_aio_read,
|
|
.aio_write = generic_file_aio_write,
|
|
.unlocked_ioctl = ext2_ioctl,
|
|
#ifdef CONFIG_COMPAT
|
|
.compat_ioctl = ext2_compat_ioctl,
|
|
#endif
|
|
.mmap = generic_file_mmap,
|
|
.open = dquot_file_open,
|
|
.release = ext2_release_file,
|
|
.fsync = ext2_fsync,
|
|
.splice_read = generic_file_splice_read,
|
|
.splice_write = generic_file_splice_write,
|
|
};
|
|
|
|
#ifdef CONFIG_EXT2_FS_XIP
|
|
const struct file_operations ext2_xip_file_operations = {
|
|
.llseek = generic_file_llseek,
|
|
.read = xip_file_read,
|
|
.write = xip_file_write,
|
|
.unlocked_ioctl = ext2_ioctl,
|
|
#ifdef CONFIG_COMPAT
|
|
.compat_ioctl = ext2_compat_ioctl,
|
|
#endif
|
|
.mmap = xip_file_mmap,
|
|
.open = dquot_file_open,
|
|
.release = ext2_release_file,
|
|
.fsync = ext2_fsync,
|
|
};
|
|
#endif
|
|
|
|
const struct inode_operations ext2_file_inode_operations = {
|
|
#ifdef CONFIG_EXT2_FS_XATTR
|
|
.setxattr = generic_setxattr,
|
|
.getxattr = generic_getxattr,
|
|
.listxattr = ext2_listxattr,
|
|
.removexattr = generic_removexattr,
|
|
#endif
|
|
.setattr = ext2_setattr,
|
|
.get_acl = ext2_get_acl,
|
|
.fiemap = ext2_fiemap,
|
|
};
|