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9p getattr hack

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Update kernel to include 9p's getattr hack to make
fstat after unlink work.

The extra patch is in the kernel_patch directory.

Signed-off-by: Peng Tao <bergwolf@gmail.com>
This commit is contained in:
Peng Tao
2016-05-04 23:21:51 +08:00
parent 402a930af0
commit baa07ce3f9
107 changed files with 45 additions and 2 deletions
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build/kernel_patch/0001-HACK-9P-always-use-cached-inode-to-fill-in-v9fs_vfs_.patch
+43
View File
@@ -0,0 +1,43 @@
From 084b4a5aa4b90975f7ac6b4714a6b449430ef4c4 Mon Sep 17 00:00:00 2001
From: Peng Tao <bergwolf@gmail.com>
Date: Wed, 4 May 2016 12:01:22 +0800
Subject: [PATCH] HACK: 9P: always use cached inode to fill in v9fs_vfs_getattr
So that if in cache=none mode, we don't have to lookup server that
might not support open-unlink-fstat operation.
Signed-off-by: Peng Tao <bergwolf@gmail.com>
---
fs/9p/vfs_inode.c | 2 +-
fs/9p/vfs_inode_dotl.c | 2 +-
2 files changed, 2 insertions(+), 2 deletions(-)
diff --git a/fs/9p/vfs_inode.c b/fs/9p/vfs_inode.c
index 5110785..43ebb31 100644
--- a/fs/9p/vfs_inode.c
+++ b/fs/9p/vfs_inode.c
@@ -1059,7 +1059,7 @@ v9fs_vfs_getattr(struct vfsmount *mnt, struct dentry *dentry,
p9_debug(P9_DEBUG_VFS, "dentry: %p\n", dentry);
v9ses = v9fs_dentry2v9ses(dentry);
- if (v9ses->cache == CACHE_LOOSE || v9ses->cache == CACHE_FSCACHE) {
+ if (!d_really_is_negative(dentry) || v9ses->cache == CACHE_LOOSE || v9ses->cache == CACHE_FSCACHE) {
generic_fillattr(d_inode(dentry), stat);
return 0;
}
diff --git a/fs/9p/vfs_inode_dotl.c b/fs/9p/vfs_inode_dotl.c
index cb899af..b1e4205 100644
--- a/fs/9p/vfs_inode_dotl.c
+++ b/fs/9p/vfs_inode_dotl.c
@@ -479,7 +479,7 @@ v9fs_vfs_getattr_dotl(struct vfsmount *mnt, struct dentry *dentry,
p9_debug(P9_DEBUG_VFS, "dentry: %p\n", dentry);
v9ses = v9fs_dentry2v9ses(dentry);
- if (v9ses->cache == CACHE_LOOSE || v9ses->cache == CACHE_FSCACHE) {
+ if (!d_really_is_negative(dentry) || v9ses->cache == CACHE_LOOSE || v9ses->cache == CACHE_FSCACHE) {
generic_fillattr(d_inode(dentry), stat);
return 0;
}
--
2.5.0