statx() has already been supported in commit a528d35e8bfc
("statx: Add a system call to make enhanced file info available"),
user programs can get more useful attributes.
Signed-off-by: Gao Xiang <gaoxiang25@xxxxxxxxxx>
---
drivers/staging/erofs/inode.c | 18 ++++++++++++++++++
drivers/staging/erofs/internal.h | 2 ++
drivers/staging/erofs/namei.c | 1 +
3 files changed, 21 insertions(+)
diff --git a/drivers/staging/erofs/inode.c b/drivers/staging/erofs/inode.c
index c7d3b815a798..8da144943ed6 100644
--- a/drivers/staging/erofs/inode.c
+++ b/drivers/staging/erofs/inode.c
@@ -285,7 +285,23 @@ struct inode *erofs_iget(struct super_block *sb,
return inode;
}
+int erofs_getattr(const struct path *path, struct kstat *stat,
+ u32 request_mask, unsigned int query_flags)
+{
+ struct inode *const inode = d_inode(path->dentry);
+ struct erofs_vnode *const vi = EROFS_V(inode);
+
+ if (vi->data_mapping_mode == EROFS_INODE_LAYOUT_COMPRESSION)
+ stat->attributes |= STATX_ATTR_COMPRESSED;
+
+ stat->attributes |= STATX_ATTR_IMMUTABLE;
+
+ generic_fillattr(inode, stat);
+ return 0;
+}
+
const struct inode_operations erofs_generic_iops = {
+ .getattr = erofs_getattr,
#ifdef CONFIG_EROFS_FS_XATTR
.listxattr = erofs_listxattr,
#endif
@@ -294,6 +310,7 @@ const struct inode_operations erofs_generic_iops = {
const struct inode_operations erofs_symlink_iops = {
.get_link = page_get_link,
+ .getattr = erofs_getattr,
#ifdef CONFIG_EROFS_FS_XATTR
.listxattr = erofs_listxattr,
#endif
@@ -302,6 +319,7 @@ const struct inode_operations erofs_symlink_iops = {
const struct inode_operations erofs_fast_symlink_iops = {
.get_link = simple_get_link,
+ .getattr = erofs_getattr,
#ifdef CONFIG_EROFS_FS_XATTR
.listxattr = erofs_listxattr,
#endif
diff --git a/drivers/staging/erofs/internal.h b/drivers/staging/erofs/internal.h
index c47778b3fabd..911333cdeef4 100644
--- a/drivers/staging/erofs/internal.h
+++ b/drivers/staging/erofs/internal.h
@@ -556,6 +556,8 @@ static inline bool is_inode_fast_symlink(struct inode *inode)
}
struct inode *erofs_iget(struct super_block *sb, erofs_nid_t nid, bool dir);
+int erofs_getattr(const struct path *path, struct kstat *stat,
+ u32 request_mask, unsigned int query_flags);
/* namei.c */
extern const struct inode_operations erofs_dir_iops;
diff --git a/drivers/staging/erofs/namei.c b/drivers/staging/erofs/namei.c
index d8d9dc9dab43..fd3ae78d0ba5 100644
--- a/drivers/staging/erofs/namei.c
+++ b/drivers/staging/erofs/namei.c
@@ -247,6 +247,7 @@ static struct dentry *erofs_lookup(struct inode *dir,
const struct inode_operations erofs_dir_iops = {
.lookup = erofs_lookup,
+ .getattr = erofs_getattr,
#ifdef CONFIG_EROFS_FS_XATTR
.listxattr = erofs_listxattr,
#endif
--
2.17.1
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