From: Li Qiang Date: Tue, 1 Nov 2016 12:00:40 +0100 Subject: [PATCH] 9pfs: add xattrwalk_fid field in V9fsXattr struct Currently, 9pfs sets the 'copied_len' field in V9fsXattr to -1 to tag xattr walk fid. As the 'copied_len' is also used to account for copied bytes, this may make confusion. This patch add a bool 'xattrwalk_fid' to tag the xattr walk fid. Suggested-by: Greg Kurz Signed-off-by: Li Qiang Reviewed-by: Greg Kurz Signed-off-by: Greg Kurz (cherry picked from commit dd28fbbc2edc0822965d402d927ce646326d6954) --- hw/9pfs/9p.c | 7 ++++--- hw/9pfs/9p.h | 1 + 2 files changed, 5 insertions(+), 3 deletions(-) diff --git a/hw/9pfs/9p.c b/hw/9pfs/9p.c index 54554bac51..ad57123aaf 100644 --- a/hw/9pfs/9p.c +++ b/hw/9pfs/9p.c @@ -310,7 +310,7 @@ static int v9fs_xattr_fid_clunk(V9fsPDU *pdu, V9fsFidState *fidp) { int retval = 0; - if (fidp->fs.xattr.copied_len == -1) { + if (fidp->fs.xattr.xattrwalk_fid) { /* getxattr/listxattr fid */ goto free_value; } @@ -3177,7 +3177,7 @@ static void v9fs_xattrwalk(void *opaque) */ xattr_fidp->fs.xattr.len = size; xattr_fidp->fid_type = P9_FID_XATTR; - xattr_fidp->fs.xattr.copied_len = -1; + xattr_fidp->fs.xattr.xattrwalk_fid = true; if (size) { xattr_fidp->fs.xattr.value = g_malloc(size); err = v9fs_co_llistxattr(pdu, &xattr_fidp->path, @@ -3210,7 +3210,7 @@ static void v9fs_xattrwalk(void *opaque) */ xattr_fidp->fs.xattr.len = size; xattr_fidp->fid_type = P9_FID_XATTR; - xattr_fidp->fs.xattr.copied_len = -1; + xattr_fidp->fs.xattr.xattrwalk_fid = true; if (size) { xattr_fidp->fs.xattr.value = g_malloc(size); err = v9fs_co_lgetxattr(pdu, &xattr_fidp->path, @@ -3266,6 +3266,7 @@ static void v9fs_xattrcreate(void *opaque) xattr_fidp = file_fidp; xattr_fidp->fid_type = P9_FID_XATTR; xattr_fidp->fs.xattr.copied_len = 0; + xattr_fidp->fs.xattr.xattrwalk_fid = false; xattr_fidp->fs.xattr.len = size; xattr_fidp->fs.xattr.flags = flags; v9fs_string_init(&xattr_fidp->fs.xattr.name); diff --git a/hw/9pfs/9p.h b/hw/9pfs/9p.h index a38603398e..699235d81c 100644 --- a/hw/9pfs/9p.h +++ b/hw/9pfs/9p.h @@ -164,6 +164,7 @@ typedef struct V9fsXattr void *value; V9fsString name; int flags; + bool xattrwalk_fid; } V9fsXattr; typedef struct V9fsDir {