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fs/ntfs3: Refactor ntfs_create_inode 

Set size for symlink, so we don't need to calculate it on the fly.

Signed-off-by: Konstantin Komarov <almaz.alexandrovich@paragon-software.com>
This commit is contained in:
Konstantin Komarov 2021-10-04 18:52:24 +03:00
parent 4dbe8e4413
commit 14a981193e
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GPG Key ID: A9B0331F832407B6
1 changed files with 8 additions and 3 deletions
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fs/ntfs3/inode.c
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@ -1488,7 +1488,10 @@ struct inode *ntfs_create_inode(struct user_namespace *mnt_userns,
asize = ALIGN(SIZEOF_RESIDENT + nsize, 8);
t16 = PtrOffset(rec, attr);
/* 0x78 - the size of EA + EAINFO to store WSL */
/*
* Below function 'ntfs_save_wsl_perm' requires 0x78 bytes.
* It is good idea to keep extened attributes resident.
*/
if (asize + t16 + 0x78 + 8 > sbi->record_size) {
CLST alen;
CLST clst = bytes_to_cluster(sbi, nsize);
@ -1523,14 +1526,14 @@ struct inode *ntfs_create_inode(struct user_namespace *mnt_userns,
}
asize = SIZEOF_NONRESIDENT + ALIGN(err, 8);
inode->i_size = nsize;
} else {
attr->res.data_off = SIZEOF_RESIDENT_LE;
attr->res.data_size = cpu_to_le32(nsize);
memcpy(Add2Ptr(attr, SIZEOF_RESIDENT), rp, nsize);
inode->i_size = nsize;
nsize = 0;
}
/* Size of symlink equals the length of input string. */
inode->i_size = size;
attr->size = cpu_to_le32(asize);
@ -1567,6 +1570,8 @@ struct inode *ntfs_create_inode(struct user_namespace *mnt_userns,
inode->i_op = &ntfs_link_inode_operations;
inode->i_fop = NULL;
inode->i_mapping->a_ops = &ntfs_aops;
inode->i_size = size;
inode_nohighmem(inode);
} else if (S_ISREG(mode)) {
inode->i_op = &ntfs_file_inode_operations;
inode->i_fop = &ntfs_file_operations;