Attachment 902772 Details for Bug 1066181 – Yet another version. This one should do no harm, but it does much less good.

[patch] Yet another version. This one should do no harm, but it does much less good.

bz1066181_v3.patch (text/plain), 2.76 KB, created by Ben Marzinski on 2014-06-06 06:29:32 UTC

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Creator: Ben Marzinski

Created: 2014-06-06 06:29:32 UTC

Size: 2.76 KB

patch

obsolete

>diff --git a/gfs-kernel/src/gfs/inode.c b/gfs-kernel/src/gfs/inode.c
>index 454366a..52b0819 100644
>--- a/gfs-kernel/src/gfs/inode.c
>+++ b/gfs-kernel/src/gfs/inode.c
>@@ -46,7 +46,7 @@
>  */
> 
> static void
>-inode_attr_in(struct gfs_inode *ip, struct inode *inode)
>+inode_attr_in(struct gfs_inode *ip, struct inode *inode, int force)
> {
> 	unsigned int mode;
> 
>@@ -93,9 +93,12 @@ inode_attr_in(struct gfs_inode *ip, struct inode *inode)
> 	inode->i_uid = ip->i_di.di_uid;
> 	inode->i_gid = ip->i_di.di_gid;
> 	i_size_write(inode, ip->i_di.di_size);
>-	inode->i_atime.tv_sec = ip->i_di.di_atime;
>-	inode->i_mtime.tv_sec = ip->i_di.di_mtime;
>-	inode->i_ctime.tv_sec = ip->i_di.di_ctime;
>+	if (force || ip->i_di.di_atime > inode->i_atime.tv_sec)
>+		inode->i_atime.tv_sec = ip->i_di.di_atime;
>+	if (force || ip->i_di.di_mtime > inode->i_mtime.tv_sec)
>+		inode->i_mtime.tv_sec = ip->i_di.di_mtime;
>+	if (force || ip->i_di.di_ctime > inode->i_ctime.tv_sec)
>+		inode->i_ctime.tv_sec = ip->i_di.di_ctime;
> 	inode->i_atime.tv_nsec = inode->i_mtime.tv_nsec = inode->i_ctime.tv_nsec = 0;
> 	inode->i_blocks = ip->i_di.di_blocks <<
> 		(ip->i_sbd->sd_sb.sb_bsize_shift - GFS_BASIC_BLOCK_SHIFT);
>@@ -125,7 +128,7 @@ gfs_inode_attr_in(struct gfs_inode *ip)
> 
> 	inode = gfs_iget(ip, NO_CREATE);
> 	if (inode) {
>-		inode_attr_in(ip, inode);
>+		inode_attr_in(ip, inode, 0);
> 		iput(inode);
> 	}
> 
>@@ -185,7 +188,7 @@ gfs_iget(struct gfs_inode *ip, int create)
> 	if (!tmp)
> 		return NULL;
> 
>-	inode_attr_in(ip, tmp);
>+	inode_attr_in(ip, tmp, 1);
> 
> 	/* Attach GFS-specific ops vectors */
> 	if (ip->i_di.di_type == GFS_FILE_REG) {
>diff --git a/gfs-kernel/src/gfs/ops_super.c b/gfs-kernel/src/gfs/ops_super.c
>index c111a2e..bfb236b 100644
>--- a/gfs-kernel/src/gfs/ops_super.c
>+++ b/gfs-kernel/src/gfs/ops_super.c
>@@ -39,6 +39,7 @@
> #include "super.h"
> #include "sys.h"
> #include "mount.h"
>+#include "trans.h"
> 
> /**
>  * gfs_write_inode - Make sure the inode is stable on the disk
>@@ -51,14 +52,40 @@
> static int
> gfs_write_inode(struct inode *inode, int sync)
> {
>+	int ret = 0;
> 	struct gfs_inode *ip = get_v2ip(inode);
>+	struct buffer_head *dibh;
>+	struct gfs_holder i_gh;
>+
>+	if (!ip)
>+		return 0;
> 
> 	atomic_inc(&ip->i_sbd->sd_ops_super);
> 
>-	if (ip && sync)
>+	if (current->flags & PF_MEMALLOC || get_transaction ||
>+	    !gfs_glock_is_locked_by_me(ip->i_gl) || !gfs_glock_is_held_excl(ip->i_gl))
>+		goto do_flush;
>+	/* Trans may require:
>+	   one dinode block. */
>+	ret = gfs_trans_begin(ip->i_sbd, 1, 0);
>+	if (ret)
>+		goto do_flush;
>+
>+	ret = gfs_get_inode_buffer(ip, &dibh);
>+	if (ret == 0) {
>+		gfs_inode_attr_out(ip);
>+		gfs_trans_add_bh(ip->i_gl, dibh);
>+		gfs_dinode_out(&ip->i_di, dibh->b_data);
>+		brelse(dibh);
>+	}
>+
>+	gfs_trans_end(ip->i_sbd);
>+
>+do_flush:
>+	if (sync)
> 		gfs_log_flush_glock(ip->i_gl, 0);
> 
>-	return 0;
>+	return ret;
> }
> 
> /**

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Attachments on bug 1066181: 864329 | 878304 | 878667 | 900627 | 902772