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Diffstat (limited to 'fs/f2fs/xattr.c')
-rw-r--r--fs/f2fs/xattr.c131
1 files changed, 46 insertions, 85 deletions
diff --git a/fs/f2fs/xattr.c b/fs/f2fs/xattr.c
index 4de2286c0e4d..06a72dc0191a 100644
--- a/fs/f2fs/xattr.c
+++ b/fs/f2fs/xattr.c
@@ -25,49 +25,37 @@
#include "f2fs.h"
#include "xattr.h"
-static size_t f2fs_xattr_generic_list(struct dentry *dentry, char *list,
- size_t list_size, const char *name, size_t len, int type)
+static int f2fs_xattr_generic_get(const struct xattr_handler *handler,
+ struct dentry *dentry, const char *name, void *buffer,
+ size_t size)
{
struct f2fs_sb_info *sbi = F2FS_SB(dentry->d_sb);
- int total_len, prefix_len = 0;
- const char *prefix = NULL;
- switch (type) {
+ switch (handler->flags) {
case F2FS_XATTR_INDEX_USER:
if (!test_opt(sbi, XATTR_USER))
return -EOPNOTSUPP;
- prefix = XATTR_USER_PREFIX;
- prefix_len = XATTR_USER_PREFIX_LEN;
break;
case F2FS_XATTR_INDEX_TRUSTED:
if (!capable(CAP_SYS_ADMIN))
return -EPERM;
- prefix = XATTR_TRUSTED_PREFIX;
- prefix_len = XATTR_TRUSTED_PREFIX_LEN;
break;
case F2FS_XATTR_INDEX_SECURITY:
- prefix = XATTR_SECURITY_PREFIX;
- prefix_len = XATTR_SECURITY_PREFIX_LEN;
break;
default:
return -EINVAL;
}
-
- total_len = prefix_len + len + 1;
- if (list && total_len <= list_size) {
- memcpy(list, prefix, prefix_len);
- memcpy(list + prefix_len, name, len);
- list[prefix_len + len] = '\0';
- }
- return total_len;
+ return f2fs_getxattr(d_inode(dentry), handler->flags, name,
+ buffer, size, NULL);
}
-static int f2fs_xattr_generic_get(struct dentry *dentry, const char *name,
- void *buffer, size_t size, int type)
+static int f2fs_xattr_generic_set(const struct xattr_handler *handler,
+ struct dentry *dentry, const char *name, const void *value,
+ size_t size, int flags)
{
struct f2fs_sb_info *sbi = F2FS_SB(dentry->d_sb);
- switch (type) {
+ switch (handler->flags) {
case F2FS_XATTR_INDEX_USER:
if (!test_opt(sbi, XATTR_USER))
return -EOPNOTSUPP;
@@ -81,72 +69,39 @@ static int f2fs_xattr_generic_get(struct dentry *dentry, const char *name,
default:
return -EINVAL;
}
- if (strcmp(name, "") == 0)
- return -EINVAL;
- return f2fs_getxattr(d_inode(dentry), type, name, buffer, size, NULL);
+ return f2fs_setxattr(d_inode(dentry), handler->flags, name,
+ value, size, NULL, flags);
}
-static int f2fs_xattr_generic_set(struct dentry *dentry, const char *name,
- const void *value, size_t size, int flags, int type)
+static bool f2fs_xattr_user_list(struct dentry *dentry)
{
struct f2fs_sb_info *sbi = F2FS_SB(dentry->d_sb);
- switch (type) {
- case F2FS_XATTR_INDEX_USER:
- if (!test_opt(sbi, XATTR_USER))
- return -EOPNOTSUPP;
- break;
- case F2FS_XATTR_INDEX_TRUSTED:
- if (!capable(CAP_SYS_ADMIN))
- return -EPERM;
- break;
- case F2FS_XATTR_INDEX_SECURITY:
- break;
- default:
- return -EINVAL;
- }
- if (strcmp(name, "") == 0)
- return -EINVAL;
-
- return f2fs_setxattr(d_inode(dentry), type, name,
- value, size, NULL, flags);
+ return test_opt(sbi, XATTR_USER);
}
-static size_t f2fs_xattr_advise_list(struct dentry *dentry, char *list,
- size_t list_size, const char *name, size_t len, int type)
+static bool f2fs_xattr_trusted_list(struct dentry *dentry)
{
- const char *xname = F2FS_SYSTEM_ADVISE_PREFIX;
- size_t size;
-
- if (type != F2FS_XATTR_INDEX_ADVISE)
- return 0;
-
- size = strlen(xname) + 1;
- if (list && size <= list_size)
- memcpy(list, xname, size);
- return size;
+ return capable(CAP_SYS_ADMIN);
}
-static int f2fs_xattr_advise_get(struct dentry *dentry, const char *name,
- void *buffer, size_t size, int type)
+static int f2fs_xattr_advise_get(const struct xattr_handler *handler,
+ struct dentry *dentry, const char *name, void *buffer,
+ size_t size)
{
struct inode *inode = d_inode(dentry);
- if (strcmp(name, "") != 0)
- return -EINVAL;
-
if (buffer)
*((char *)buffer) = F2FS_I(inode)->i_advise;
return sizeof(char);
}
-static int f2fs_xattr_advise_set(struct dentry *dentry, const char *name,
- const void *value, size_t size, int flags, int type)
+static int f2fs_xattr_advise_set(const struct xattr_handler *handler,
+ struct dentry *dentry, const char *name, const void *value,
+ size_t size, int flags)
{
struct inode *inode = d_inode(dentry);
- if (strcmp(name, "") != 0)
- return -EINVAL;
if (!inode_owner_or_capable(inode))
return -EPERM;
if (value == NULL)
@@ -185,7 +140,7 @@ int f2fs_init_security(struct inode *inode, struct inode *dir,
const struct xattr_handler f2fs_xattr_user_handler = {
.prefix = XATTR_USER_PREFIX,
.flags = F2FS_XATTR_INDEX_USER,
- .list = f2fs_xattr_generic_list,
+ .list = f2fs_xattr_user_list,
.get = f2fs_xattr_generic_get,
.set = f2fs_xattr_generic_set,
};
@@ -193,15 +148,14 @@ const struct xattr_handler f2fs_xattr_user_handler = {
const struct xattr_handler f2fs_xattr_trusted_handler = {
.prefix = XATTR_TRUSTED_PREFIX,
.flags = F2FS_XATTR_INDEX_TRUSTED,
- .list = f2fs_xattr_generic_list,
+ .list = f2fs_xattr_trusted_list,
.get = f2fs_xattr_generic_get,
.set = f2fs_xattr_generic_set,
};
const struct xattr_handler f2fs_xattr_advise_handler = {
- .prefix = F2FS_SYSTEM_ADVISE_PREFIX,
+ .name = F2FS_SYSTEM_ADVISE_NAME,
.flags = F2FS_XATTR_INDEX_ADVISE,
- .list = f2fs_xattr_advise_list,
.get = f2fs_xattr_advise_get,
.set = f2fs_xattr_advise_set,
};
@@ -209,7 +163,6 @@ const struct xattr_handler f2fs_xattr_advise_handler = {
const struct xattr_handler f2fs_xattr_security_handler = {
.prefix = XATTR_SECURITY_PREFIX,
.flags = F2FS_XATTR_INDEX_SECURITY,
- .list = f2fs_xattr_generic_list,
.get = f2fs_xattr_generic_get,
.set = f2fs_xattr_generic_set,
};
@@ -347,7 +300,7 @@ static inline int write_all_xattrs(struct inode *inode, __u32 hsize,
if (ipage) {
inline_addr = inline_xattr_addr(ipage);
- f2fs_wait_on_page_writeback(ipage, NODE);
+ f2fs_wait_on_page_writeback(ipage, NODE, true);
} else {
page = get_node_page(sbi, inode->i_ino);
if (IS_ERR(page)) {
@@ -355,7 +308,7 @@ static inline int write_all_xattrs(struct inode *inode, __u32 hsize,
return PTR_ERR(page);
}
inline_addr = inline_xattr_addr(page);
- f2fs_wait_on_page_writeback(page, NODE);
+ f2fs_wait_on_page_writeback(page, NODE, true);
}
memcpy(inline_addr, txattr_addr, inline_size);
f2fs_put_page(page, 1);
@@ -376,7 +329,7 @@ static inline int write_all_xattrs(struct inode *inode, __u32 hsize,
return PTR_ERR(xpage);
}
f2fs_bug_on(sbi, new_nid);
- f2fs_wait_on_page_writeback(xpage, NODE);
+ f2fs_wait_on_page_writeback(xpage, NODE, true);
} else {
struct dnode_of_data dn;
set_new_dnode(&dn, inode, NULL, NULL, new_nid);
@@ -457,20 +410,27 @@ ssize_t f2fs_listxattr(struct dentry *dentry, char *buffer, size_t buffer_size)
list_for_each_xattr(entry, base_addr) {
const struct xattr_handler *handler =
f2fs_xattr_handler(entry->e_name_index);
+ const char *prefix;
+ size_t prefix_len;
size_t size;
- if (!handler)
+ if (!handler || (handler->list && !handler->list(dentry)))
continue;
- size = handler->list(dentry, buffer, rest, entry->e_name,
- entry->e_name_len, handler->flags);
- if (buffer && size > rest) {
- error = -ERANGE;
- goto cleanup;
+ prefix = handler->prefix ?: handler->name;
+ prefix_len = strlen(prefix);
+ size = prefix_len + entry->e_name_len + 1;
+ if (buffer) {
+ if (size > rest) {
+ error = -ERANGE;
+ goto cleanup;
+ }
+ memcpy(buffer, prefix, prefix_len);
+ buffer += prefix_len;
+ memcpy(buffer, entry->e_name, entry->e_name_len);
+ buffer += entry->e_name_len;
+ *buffer++ = 0;
}
-
- if (buffer)
- buffer += size;
rest -= size;
}
error = buffer_size - rest;
@@ -611,7 +571,7 @@ int f2fs_setxattr(struct inode *inode, int index, const char *name,
if (ipage)
return __f2fs_setxattr(inode, index, name, value,
size, ipage, flags);
- f2fs_balance_fs(sbi);
+ f2fs_balance_fs(sbi, true);
f2fs_lock_op(sbi);
/* protect xattr_ver */
@@ -620,5 +580,6 @@ int f2fs_setxattr(struct inode *inode, int index, const char *name,
up_write(&F2FS_I(inode)->i_sem);
f2fs_unlock_op(sbi);
+ f2fs_update_time(sbi, REQ_TIME);
return err;
}
generated by cgit v1.2.3 (git 2.39.0) at 2025-01-26 19:33:02 +0300