From 89f27eded5b63c697287050d9ef5c713cde0af98 Mon Sep 17 00:00:00 2001 From: Gao Xiang Date: Tue, 28 May 2019 11:19:42 +0800 Subject: [PATCH] staging: erofs: support statx 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 Reviewed-by: Chao Yu Signed-off-by: Greg Kroah-Hartman --- drivers/staging/erofs/inode.c | 20 ++++++++++++++++++++ drivers/staging/erofs/internal.h | 2 ++ drivers/staging/erofs/namei.c | 1 + 3 files changed, 23 insertions(+) diff --git a/drivers/staging/erofs/inode.c b/drivers/staging/erofs/inode.c index c7d3b81..1c22090 100644 --- a/drivers/staging/erofs/inode.c +++ b/drivers/staging/erofs/inode.c @@ -285,7 +285,25 @@ 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; + stat->attributes_mask |= (STATX_ATTR_COMPRESSED | + 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 +312,7 @@ 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 +321,7 @@ 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 c47778b..911333c 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 d8d9dc9..fd3ae78 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 -- 2.7.4