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Commit 9a773e7c authored by Trond Myklebust's avatar Trond Myklebust
Browse files

NFS nfs_vm_page_mkwrite: Don't freeze me, Bro... 



Prevent filesystem freezes while handling the write page fault.

Signed-off-by: default avatarTrond Myklebust <trond.myklebust@primarydata.com>
parent e95fc4a0

fs/nfs/file.c

+3 −0
Original line number Diff line number Diff line
@@ -569,6 +569,8 @@ static int nfs_vm_page_mkwrite(struct vm_area_struct *vma, struct vm_fault *vmf) 
		filp, filp->f_mapping->host->i_ino,

		(long long)page_offset(page));



	sb_start_pagefault(inode->i_sb);



	/* make sure the cache has finished storing the page */

	nfs_fscache_wait_on_page_write(NFS_I(inode), page);
@@ -595,6 +597,7 @@ static int nfs_vm_page_mkwrite(struct vm_area_struct *vma, struct vm_fault *vmf) 
out_unlock:

	unlock_page(page);

out:

	sb_end_pagefault(inode->i_sb);

	return ret;

}