Commit 0b0abeaf authored Feb 02, 2011 by Boaz Harrosh Committed by Linus Torvalds Feb 02, 2011

Revert "exofs: Set i_mapping->backing_dev_info anyway"



This reverts commit 115e19c5.

Apparently setting inode->bdi to one's own sb->s_bdi stops VFS from
sending *read-aheads*.  This problem was bisected to this commit.  A
revert fixes it.  I'll investigate farther why is this happening for the
next Kernel, but for now a revert.

I'm sending to stable@kernel.org as well, since it exists also in
2.6.37.  2.6.36 is good and does not have this patch.

CC: Stable Tree <stable@kernel.org>
Signed-off-by: Boaz Harrosh <bharrosh@panasas.com>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>

parent f2f1756d

fs/exofs/inode.c

+0 −2

Original line number	Diff line number	Diff line
		@@ -1030,7 +1030,6 @@ struct inode exofs_iget(struct super_block sb, unsigned long ino)
		memcpy(oi->i_data, fcb.i_data, sizeof(fcb.i_data));
		}

		inode->i_mapping->backing_dev_info = sb->s_bdi;
		if (S_ISREG(inode->i_mode)) {
		inode->i_op = &exofs_file_inode_operations;
		inode->i_fop = &exofs_file_operations;
		@@ -1131,7 +1130,6 @@ struct inode exofs_new_inode(struct inode dir, int mode)

		sbi = sb->s_fs_info;

		inode->i_mapping->backing_dev_info = sb->s_bdi;
		sb->s_dirt = 1;
		inode_init_owner(inode, dir, mode);
		inode->i_ino = sbi->s_nextid++;

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