inode.c (549c7297717c32ee53f156cd949e055e601f67bb) inode.c (14f3db5542e62bcf6fe088a09760ac52d55306c5)
1// SPDX-License-Identifier: GPL-2.0
2/*
3 * linux/fs/ext4/inode.c
4 *
5 * Copyright (C) 1992, 1993, 1994, 1995
6 * Remy Card (card@masi.ibp.fr)
7 * Laboratoire MASI - Institut Blaise Pascal
8 * Universite Pierre et Marie Curie (Paris VI)

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15 *
16 * 64-bit file support on 64-bit platforms by Jakub Jelinek
17 * (jj@sunsite.ms.mff.cuni.cz)
18 *
19 * Assorted race fixes, rewrite of ext4_get_block() by Al Viro, 2000
20 */
21
22#include <linux/fs.h>
1// SPDX-License-Identifier: GPL-2.0
2/*
3 * linux/fs/ext4/inode.c
4 *
5 * Copyright (C) 1992, 1993, 1994, 1995
6 * Remy Card (card@masi.ibp.fr)
7 * Laboratoire MASI - Institut Blaise Pascal
8 * Universite Pierre et Marie Curie (Paris VI)

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15 *
16 * 64-bit file support on 64-bit platforms by Jakub Jelinek
17 * (jj@sunsite.ms.mff.cuni.cz)
18 *
19 * Assorted race fixes, rewrite of ext4_get_block() by Al Viro, 2000
20 */
21
22#include <linux/fs.h>
23#include <linux/mount.h>
23#include <linux/time.h>
24#include <linux/highuid.h>
25#include <linux/pagemap.h>
26#include <linux/dax.h>
27#include <linux/quotaops.h>
28#include <linux/string.h>
29#include <linux/buffer_head.h>
30#include <linux/writeback.h>

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5333 if (unlikely(IS_IMMUTABLE(inode)))
5334 return -EPERM;
5335
5336 if (unlikely(IS_APPEND(inode) &&
5337 (ia_valid & (ATTR_MODE | ATTR_UID |
5338 ATTR_GID | ATTR_TIMES_SET))))
5339 return -EPERM;
5340
24#include <linux/time.h>
25#include <linux/highuid.h>
26#include <linux/pagemap.h>
27#include <linux/dax.h>
28#include <linux/quotaops.h>
29#include <linux/string.h>
30#include <linux/buffer_head.h>
31#include <linux/writeback.h>

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5334 if (unlikely(IS_IMMUTABLE(inode)))
5335 return -EPERM;
5336
5337 if (unlikely(IS_APPEND(inode) &&
5338 (ia_valid & (ATTR_MODE | ATTR_UID |
5339 ATTR_GID | ATTR_TIMES_SET))))
5340 return -EPERM;
5341
5341 error = setattr_prepare(&init_user_ns, dentry, attr);
5342 error = setattr_prepare(mnt_userns, dentry, attr);
5342 if (error)
5343 return error;
5344
5345 error = fscrypt_prepare_setattr(dentry, attr);
5346 if (error)
5347 return error;
5348
5349 error = fsverity_prepare_setattr(dentry, attr);

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5508 if (rc)
5509 error = rc;
5510 }
5511out_mmap_sem:
5512 up_write(&EXT4_I(inode)->i_mmap_sem);
5513 }
5514
5515 if (!error) {
5343 if (error)
5344 return error;
5345
5346 error = fscrypt_prepare_setattr(dentry, attr);
5347 if (error)
5348 return error;
5349
5350 error = fsverity_prepare_setattr(dentry, attr);

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5509 if (rc)
5510 error = rc;
5511 }
5512out_mmap_sem:
5513 up_write(&EXT4_I(inode)->i_mmap_sem);
5514 }
5515
5516 if (!error) {
5516 setattr_copy(&init_user_ns, inode, attr);
5517 setattr_copy(mnt_userns, inode, attr);
5517 mark_inode_dirty(inode);
5518 }
5519
5520 /*
5521 * If the call to ext4_truncate failed to get a transaction handle at
5522 * all, we need to clean up the in-core orphan list manually.
5523 */
5524 if (orphan && inode->i_nlink)
5525 ext4_orphan_del(NULL, inode);
5526
5527 if (!error && (ia_valid & ATTR_MODE))
5518 mark_inode_dirty(inode);
5519 }
5520
5521 /*
5522 * If the call to ext4_truncate failed to get a transaction handle at
5523 * all, we need to clean up the in-core orphan list manually.
5524 */
5525 if (orphan && inode->i_nlink)
5526 ext4_orphan_del(NULL, inode);
5527
5528 if (!error && (ia_valid & ATTR_MODE))
5528 rc = posix_acl_chmod(&init_user_ns, inode, inode->i_mode);
5529 rc = posix_acl_chmod(mnt_userns, inode, inode->i_mode);
5529
5530err_out:
5531 if (error)
5532 ext4_std_error(inode->i_sb, error);
5533 if (!error)
5534 error = rc;
5535 ext4_fc_stop_update(inode);
5536 return error;

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5567
5568 stat->attributes_mask |= (STATX_ATTR_APPEND |
5569 STATX_ATTR_COMPRESSED |
5570 STATX_ATTR_ENCRYPTED |
5571 STATX_ATTR_IMMUTABLE |
5572 STATX_ATTR_NODUMP |
5573 STATX_ATTR_VERITY);
5574
5530
5531err_out:
5532 if (error)
5533 ext4_std_error(inode->i_sb, error);
5534 if (!error)
5535 error = rc;
5536 ext4_fc_stop_update(inode);
5537 return error;

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5568
5569 stat->attributes_mask |= (STATX_ATTR_APPEND |
5570 STATX_ATTR_COMPRESSED |
5571 STATX_ATTR_ENCRYPTED |
5572 STATX_ATTR_IMMUTABLE |
5573 STATX_ATTR_NODUMP |
5574 STATX_ATTR_VERITY);
5575
5575 generic_fillattr(&init_user_ns, inode, stat);
5576 generic_fillattr(mnt_userns, inode, stat);
5576 return 0;
5577}
5578
5579int ext4_file_getattr(struct user_namespace *mnt_userns,
5580 const struct path *path, struct kstat *stat,
5581 u32 request_mask, unsigned int query_flags)
5582{
5583 struct inode *inode = d_inode(path->dentry);
5584 u64 delalloc_blocks;
5585
5577 return 0;
5578}
5579
5580int ext4_file_getattr(struct user_namespace *mnt_userns,
5581 const struct path *path, struct kstat *stat,
5582 u32 request_mask, unsigned int query_flags)
5583{
5584 struct inode *inode = d_inode(path->dentry);
5585 u64 delalloc_blocks;
5586
5586 ext4_getattr(&init_user_ns, path, stat, request_mask, query_flags);
5587 ext4_getattr(mnt_userns, path, stat, request_mask, query_flags);
5587
5588 /*
5589 * If there is inline data in the inode, the inode will normally not
5590 * have data blocks allocated (it may have an external xattr block).
5591 * Report at least one sector for such files, so tools like tar, rsync,
5592 * others don't incorrectly think the file is completely sparse.
5593 */
5594 if (unlikely(ext4_has_inline_data(inode)))

--- 617 unchanged lines hidden --- 		5588
5589 /*
5590 * If there is inline data in the inode, the inode will normally not
5591 * have data blocks allocated (it may have an external xattr block).
5592 * Report at least one sector for such files, so tools like tar, rsync,
5593 * others don't incorrectly think the file is completely sparse.
5594 */
5595 if (unlikely(ext4_has_inline_data(inode)))

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