Attachment 145860 Details for Bug 192701 – FUSE honor FOPEN_DIRECT_IO

[patch] FUSE honor FOPEN_DIRECT_IO

fuse_direct_io.patch (text/plain), 1.68 KB, created by Harshavardhana on 2014-08-16 09:10:53 UTC

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Creator: Harshavardhana

Created: 2014-08-16 09:10:53 UTC

Size: 1.68 KB

patch

obsolete

>Index: fuse_node.c
>===================================================================
>--- fuse_node.c	(revision 270029)
>+++ fuse_node.c	(working copy)
>@@ -273,8 +273,11 @@
>          * Funcation is called for every vnode open.
>          * Merge fuse_open_flags it may be 0
>          *
>-         * XXXIP: Handle FOPEN_DIRECT_IO and FOPEN_KEEP_CACHE
>+         * XXXIP: Handle FOPEN_KEEP_CACHE
>          */
>+	if (fuse_open_flags & FOPEN_DIRECT_IO) {
>+		VTOFUD(vp)->flag |= FN_DIRECTIO;
>+	}
> 
> 	if (vnode_vtype(vp) == VREG) {
> 		/* XXXIP prevent getattr, by using cached node size */
>@@ -314,7 +317,7 @@
> 	fsai->valid = 0;
> 
> 	/* Truncate to a new value. */
>-	    fsai->size = fvdat->filesize;
>+	fsai->size = fvdat->filesize;
> 	fsai->valid |= FATTR_SIZE;
> 
> 	fuse_filehandle_getrw(vp, FUFH_WRONLY, &fufh);
>Index: fuse_node.h
>===================================================================
>--- fuse_node.h	(revision 270029)
>+++ fuse_node.h	(working copy)
>@@ -67,6 +67,7 @@
> #define FN_FLUSHINPROG       0x00000040
> #define FN_FLUSHWANT         0x00000080
> #define FN_SIZECHANGE        0x00000100
>+#define FN_DIRECTIO          0x00000200
> 
> struct fuse_vnode_data {
>     /** self **/
>Index: fuse_vnops.c
>===================================================================
>--- fuse_vnops.c	(revision 270029)
>+++ fuse_vnops.c	(working copy)
>@@ -1173,6 +1173,11 @@
> 	if (fuse_isdeadfs(vp)) {
> 		return ENXIO;
> 	}
>+
>+	if (VTOFUD(vp)->flag & FN_DIRECTIO) {
>+		ioflag |= IO_DIRECT;
>+	}
>+
> 	return fuse_io_dispatch(vp, uio, ioflag, cred);
> }
> 
>@@ -1712,6 +1717,10 @@
> 	}
> 	fuse_vnode_refreshsize(vp, cred);
> 
>+	if (VTOFUD(vp)->flag & FN_DIRECTIO) {
>+		ioflag |= IO_DIRECT;
>+	}
>+
> 	return fuse_io_dispatch(vp, uio, ioflag, cred);
> }
>

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Attachments on bug 192701: 145860 | 146010 | 146279