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| author | Tetsuo Handa <penguin-kernel@I-love.SAKURA.ne.jp> | 2010-02-03 06:43:06 +0900 |
|---|---|---|
| committer | James Morris <jmorris@namei.org> | 2010-02-08 14:10:20 +1100 |
| commit | ea13ddbad0eb4be9cdc406cd7e0804fa4011f6e4 (patch) | |
| tree | 4068bb5baad6f6819242b36a00bf395a6db7f1e1 /security/tomoyo/file.c | |
| parent | f40a70861ace69001524644473cc389543b06c3c (diff) | |
| download | linux-ea13ddbad0eb4be9cdc406cd7e0804fa4011f6e4.tar.gz linux-ea13ddbad0eb4be9cdc406cd7e0804fa4011f6e4.tar.bz2 linux-ea13ddbad0eb4be9cdc406cd7e0804fa4011f6e4.zip | |
TOMOYO: Extract bitfield
Since list elements are rounded up to kmalloc() size rather than sizeof(int),
saving one byte by using bitfields is no longer helpful.
Signed-off-by: Tetsuo Handa <penguin-kernel@I-love.SAKURA.ne.jp>
Acked-by: Serge Hallyn <serue@us.ibm.com>
Signed-off-by: James Morris <jmorris@namei.org>
Diffstat (limited to 'security/tomoyo/file.c')
| -rw-r--r-- | security/tomoyo/file.c | 27 |
1 files changed, 7 insertions, 20 deletions
diff --git a/security/tomoyo/file.c b/security/tomoyo/file.c index 24af081f1af9..84c821a245ca 100644 --- a/security/tomoyo/file.c +++ b/security/tomoyo/file.c @@ -688,7 +688,7 @@ static int tomoyo_check_single_path_acl2(const struct tomoyo_domain_info * list_for_each_entry_rcu(ptr, &domain->acl_info_list, list) { struct tomoyo_single_path_acl_record *acl; - if (tomoyo_acl_type2(ptr) != TOMOYO_TYPE_SINGLE_PATH_ACL) + if (ptr->type != TOMOYO_TYPE_SINGLE_PATH_ACL) continue; acl = container_of(ptr, struct tomoyo_single_path_acl_record, head); @@ -770,8 +770,7 @@ static int tomoyo_check_file_perm2(struct tomoyo_domain_info * const domain, if (!filename) return 0; error = tomoyo_check_file_acl(domain, filename, perm); - if (error && perm == 4 && - (domain->flags & TOMOYO_DOMAIN_FLAGS_IGNORE_GLOBAL_ALLOW_READ) == 0 + if (error && perm == 4 && !domain->ignore_global_allow_read && tomoyo_is_globally_readable_file(filename)) error = 0; if (perm == 6) @@ -885,15 +884,12 @@ static int tomoyo_update_single_path_acl(const u8 type, const char *filename, if (is_delete) goto delete; list_for_each_entry_rcu(ptr, &domain->acl_info_list, list) { - if (tomoyo_acl_type1(ptr) != TOMOYO_TYPE_SINGLE_PATH_ACL) + if (ptr->type != TOMOYO_TYPE_SINGLE_PATH_ACL) continue; acl = container_of(ptr, struct tomoyo_single_path_acl_record, head); if (acl->filename != saved_filename) continue; - /* Special case. Clear all bits if marked as deleted. */ - if (ptr->type & TOMOYO_ACL_DELETED) - acl->perm = 0; if (perm <= 0xFFFF) acl->perm |= perm; else @@ -902,7 +898,6 @@ static int tomoyo_update_single_path_acl(const u8 type, const char *filename, acl->perm |= 1 << TOMOYO_TYPE_READ_WRITE_ACL; else if (acl->perm & (1 << TOMOYO_TYPE_READ_WRITE_ACL)) acl->perm |= rw_mask; - ptr->type &= ~TOMOYO_ACL_DELETED; error = 0; goto out; } @@ -927,7 +922,7 @@ static int tomoyo_update_single_path_acl(const u8 type, const char *filename, delete: error = -ENOENT; list_for_each_entry_rcu(ptr, &domain->acl_info_list, list) { - if (tomoyo_acl_type2(ptr) != TOMOYO_TYPE_SINGLE_PATH_ACL) + if (ptr->type != TOMOYO_TYPE_SINGLE_PATH_ACL) continue; acl = container_of(ptr, struct tomoyo_single_path_acl_record, head); @@ -941,8 +936,6 @@ static int tomoyo_update_single_path_acl(const u8 type, const char *filename, acl->perm &= ~(1 << TOMOYO_TYPE_READ_WRITE_ACL); else if (!(acl->perm & (1 << TOMOYO_TYPE_READ_WRITE_ACL))) acl->perm &= ~rw_mask; - if (!acl->perm && !acl->perm_high) - ptr->type |= TOMOYO_ACL_DELETED; error = 0; break; } @@ -989,18 +982,14 @@ static int tomoyo_update_double_path_acl(const u8 type, const char *filename1, if (is_delete) goto delete; list_for_each_entry_rcu(ptr, &domain->acl_info_list, list) { - if (tomoyo_acl_type1(ptr) != TOMOYO_TYPE_DOUBLE_PATH_ACL) + if (ptr->type != TOMOYO_TYPE_DOUBLE_PATH_ACL) continue; acl = container_of(ptr, struct tomoyo_double_path_acl_record, head); if (acl->filename1 != saved_filename1 || acl->filename2 != saved_filename2) continue; - /* Special case. Clear all bits if marked as deleted. */ - if (ptr->type & TOMOYO_ACL_DELETED) - acl->perm = 0; acl->perm |= perm; - ptr->type &= ~TOMOYO_ACL_DELETED; error = 0; goto out; } @@ -1021,7 +1010,7 @@ static int tomoyo_update_double_path_acl(const u8 type, const char *filename1, delete: error = -ENOENT; list_for_each_entry_rcu(ptr, &domain->acl_info_list, list) { - if (tomoyo_acl_type2(ptr) != TOMOYO_TYPE_DOUBLE_PATH_ACL) + if (ptr->type != TOMOYO_TYPE_DOUBLE_PATH_ACL) continue; acl = container_of(ptr, struct tomoyo_double_path_acl_record, head); @@ -1029,8 +1018,6 @@ static int tomoyo_update_double_path_acl(const u8 type, const char *filename1, acl->filename2 != saved_filename2) continue; acl->perm &= ~perm; - if (!acl->perm) - ptr->type |= TOMOYO_ACL_DELETED; error = 0; break; } @@ -1086,7 +1073,7 @@ static int tomoyo_check_double_path_acl(const struct tomoyo_domain_info *domain, return 0; list_for_each_entry_rcu(ptr, &domain->acl_info_list, list) { struct tomoyo_double_path_acl_record *acl; - if (tomoyo_acl_type2(ptr) != TOMOYO_TYPE_DOUBLE_PATH_ACL) + if (ptr->type != TOMOYO_TYPE_DOUBLE_PATH_ACL) continue; acl = container_of(ptr, struct tomoyo_double_path_acl_record, head); |