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This patch add EXPORT_SYMBOL(filemap_write_and_wait) and use it. See mm/filemap.c: And changes the filemap_write_and_wait() and filemap_write_and_wait_range(). Current filemap_write_and_wait() doesn't wait if filemap_fdatawrite() returns error. However, even if filemap_fdatawrite() returned an error, it may have submitted the partially data pages to the device. (e.g. in the case of -ENOSPC) <quotation> Andrew Morton writes, If filemap_fdatawrite() returns an error, this might be due to some I/O problem: dead disk, unplugged cable, etc. Given the generally crappy quality of the kernel's handling of such exceptions, there's a good chance that the filemap_fdatawait() will get stuck in D state forever. </quotation> So, this patch doesn't wait if filemap_fdatawrite() returns the -EIO. Trond, could you please review the nfs part? Especially I'm not sure, nfs must use the "filemap_fdatawrite(inode->i_mapping) == 0", or not. Acked-by: Trond Myklebust <trond.myklebust@fys.uio.no> Signed-off-by: Andrew Morton <akpm@osdl.org> Signed-off-by: Linus Torvalds <torvalds@osdl.org> |
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| .. | ||
| 9p.c | ||
| 9p.h | ||
| conv.c | ||
| conv.h | ||
| debug.h | ||
| error.c | ||
| error.h | ||
| fid.c | ||
| fid.h | ||
| Makefile | ||
| mux.c | ||
| mux.h | ||
| trans_fd.c | ||
| trans_sock.c | ||
| transport.h | ||
| v9fs_vfs.h | ||
| v9fs.c | ||
| v9fs.h | ||
| vfs_dentry.c | ||
| vfs_dir.c | ||
| vfs_file.c | ||
| vfs_inode.c | ||
| vfs_super.c | ||