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authorDavid Howells <dhowells@redhat.com>2017-03-31 18:32:17 +0100
committerAl Viro <viro@zeniv.linux.org.uk>2017-04-03 01:06:00 -0400
commit3209f68b3ca4667069923a325c88b21131bfdf9f (patch)
tree28807921a600cc5fd1ede24fcac669f0f0b2e994 /fs
parent47071aee6a1956524b9929b3b821f6d2f8cae23c (diff)
downloadlinux-3209f68b3ca4667069923a325c88b21131bfdf9f.tar.bz2
statx: Include a mask for stx_attributes in struct statx
Include a mask in struct stat to indicate which bits of stx_attributes the filesystem actually supports. This would also be useful if we add another system call that allows you to do a 'bulk attribute set' and pass in a statx struct with the masks appropriately set to say what you want to set. Signed-off-by: David Howells <dhowells@redhat.com> Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
Diffstat (limited to 'fs')
-rw-r--r--fs/ext4/inode.c6
-rw-r--r--fs/stat.c1
2 files changed, 7 insertions, 0 deletions
diff --git a/fs/ext4/inode.c b/fs/ext4/inode.c
index 5d02b922afa3..b9ffa9f4191f 100644
--- a/fs/ext4/inode.c
+++ b/fs/ext4/inode.c
@@ -5413,6 +5413,12 @@ int ext4_getattr(const struct path *path, struct kstat *stat,
if (flags & EXT4_NODUMP_FL)
stat->attributes |= STATX_ATTR_NODUMP;
+ stat->attributes_mask |= (STATX_ATTR_APPEND |
+ STATX_ATTR_COMPRESSED |
+ STATX_ATTR_ENCRYPTED |
+ STATX_ATTR_IMMUTABLE |
+ STATX_ATTR_NODUMP);
+
generic_fillattr(inode, stat);
return 0;
}
diff --git a/fs/stat.c b/fs/stat.c
index 0c7e6cdc435c..c6c963b2546b 100644
--- a/fs/stat.c
+++ b/fs/stat.c
@@ -527,6 +527,7 @@ cp_statx(const struct kstat *stat, struct statx __user *buffer)
tmp.stx_ino = stat->ino;
tmp.stx_size = stat->size;
tmp.stx_blocks = stat->blocks;
+ tmp.stx_attributes_mask = stat->attributes_mask;
tmp.stx_atime.tv_sec = stat->atime.tv_sec;
tmp.stx_atime.tv_nsec = stat->atime.tv_nsec;
tmp.stx_btime.tv_sec = stat->btime.tv_sec;