Created
July 19, 2016 22:08
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IATTR_WRITE support for linux-vserver
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| diff -ur linux-3.18.21-vs2.3.7.4/fs/namei.c linux-3.18.21-iattr_write/fs/namei.c | |
| --- linux-3.18.21-vs2.3.7.4/fs/namei.c 2016-07-19 23:40:13.028001274 +0200 | |
| +++ linux-3.18.21-iattr_write/fs/namei.c 2016-07-19 23:44:24.660007559 +0200 | |
| @@ -326,7 +326,8 @@ | |
| struct task_struct *tsk; | |
| if (vx_check(0, VS_ADMIN | VS_WATCH_P) || | |
| - vx_flags(VXF_STATE_SETUP, 0)) | |
| + vx_flags(VXF_STATE_SETUP, 0) || | |
| + (de && (de->vx_flags & IATTR_WRITE))) | |
| return 0; | |
| pid = PROC_I(inode)->pid; | |
| diff -ur linux-3.18.21-vs2.3.7.4/include/uapi/vserver/inode.h linux-3.18.21-iattr_write/include/uapi/vserver/inode.h | |
| --- linux-3.18.21-vs2.3.7.4/include/uapi/vserver/inode.h 2016-07-19 23:40:13.096001276 +0200 | |
| +++ linux-3.18.21-iattr_write/include/uapi/vserver/inode.h 2016-07-20 00:06:45.743995265 +0200 | |
| @@ -7,7 +7,8 @@ | |
| #define IATTR_ADMIN 0x00000001 | |
| #define IATTR_WATCH 0x00000002 | |
| #define IATTR_HIDE 0x00000004 | |
| -#define IATTR_FLAGS 0x00000007 | |
| +#define IATTR_WRITE 0x00000008 | |
| +#define IATTR_FLAGS 0x0000000F | |
| #define IATTR_BARRIER 0x00010000 | |
| #define IATTR_IXUNLINK 0x00020000 |
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