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authorKonstantin Komarov <almaz.alexandrovich@paragon-software.com>2021-10-04 18:52:24 +0300
committerKonstantin Komarov <almaz.alexandrovich@paragon-software.com>2021-10-11 19:28:05 +0300
commit14a981193e409d8ca3f89768cfbd7a9a516d9927 (patch)
treeb40532becbeff3743e5d0754f2a50ed0eff215e5 /fs/ntfs3
parent4dbe8e4413d70ac4f163592d69eef74d7824783a (diff)
downloadlinux-14a981193e409d8ca3f89768cfbd7a9a516d9927.tar.xz
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>
Diffstat (limited to 'fs/ntfs3')
-rw-r--r--fs/ntfs3/inode.c11
1 files changed, 8 insertions, 3 deletions
diff --git a/fs/ntfs3/inode.c b/fs/ntfs3/inode.c
index d618b0573533..bdebbbd53e76 100644
--- a/fs/ntfs3/inode.c
+++ b/fs/ntfs3/inode.c
@@ -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;