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Commit 2992c4bd authored by Linus Torvalds's avatar Linus Torvalds
Browse files

Merge branch 'bugfixes' of git://git.linux-nfs.org/projects/trondmy/nfs-2.6 

* 'bugfixes' of git://git.linux-nfs.org/projects/trondmy/nfs-2.6:
  NFS: Fix decode_secinfo_maxsz
  NFSv4.1: Fix an off-by-one error in pnfs_generic_pg_test
  NFSv4.1: Fix some issues with pnfs_generic_pg_test
  NFSv4.1: file layout must consider pg_bsize for coalescing
  pnfs-obj: No longer needed to take an extra ref at add_device
  SUNRPC: Ensure the RPC client only quits on fatal signals
  NFSv4: Fix a readdir regression
  nfs4.1: mark layout as bad on error path in _pnfs_return_layout
  nfs4.1: prevent race that allowed use of freed layout in _pnfs_return_layout
  NFSv4.1: need to put_layout_hdr on _pnfs_return_layout error path
  NFS: (d)printks should use %zd for ssize_t arguments
  NFSv4.1: fix break condition in pnfs_find_lseg
  nfs4.1: fix several problems with _pnfs_return_layout
  NFSv4.1: allow zero fh array in filelayout decode layout
  NFSv4.1: allow nfs_fhget to succeed with mounted on fileid
  NFSv4.1: Fix a refcounting issue in the pNFS device id cache
  NFSv4.1: deprecate headerpadsz in CREATE_SESSION
  NFS41: do not update isize if inode needs layoutcommit
  NLM: Don't hang forever on NLM unlock requests
  NFS: fix umount of pnfs filesystems
parents e08f6d41 1650add2

fs/lockd/clntproc.c

+7 −1
Original line number Diff line number Diff line
@@ -708,8 +708,14 @@ static void nlmclnt_unlock_callback(struct rpc_task *task, void *data) 


	if (task->tk_status < 0) {

		dprintk("lockd: unlock failed (err = %d)\n", -task->tk_status);

		switch (task->tk_status) {

		case -EACCES:

		case -EIO:

			goto die;

		default:

			goto retry_rebind;

		}

	}

	if (status == NLM_LCK_DENIED_GRACE_PERIOD) {

		rpc_delay(task, NLMCLNT_GRACE_WAIT);

		goto retry_unlock;

fs/nfs/inode.c

+4 −2
Original line number Diff line number Diff line
@@ -256,7 +256,8 @@ nfs_fhget(struct super_block *sb, struct nfs_fh *fh, struct nfs_fattr *fattr) 


	nfs_attr_check_mountpoint(sb, fattr);



	if ((fattr->valid & NFS_ATTR_FATTR_FILEID) == 0 && (fattr->valid & NFS_ATTR_FATTR_MOUNTPOINT) == 0)

	if (((fattr->valid & NFS_ATTR_FATTR_FILEID) == 0) &&

	    !nfs_attr_use_mounted_on_fileid(fattr))

		goto out_no_inode;

	if ((fattr->valid & NFS_ATTR_FATTR_TYPE) == 0)

		goto out_no_inode;
@@ -1294,7 +1295,8 @@ static int nfs_update_inode(struct inode *inode, struct nfs_fattr *fattr) 
		if (new_isize != cur_isize) {

			/* Do we perhaps have any outstanding writes, or has

			 * the file grown beyond our last write? */

			if (nfsi->npages == 0 || new_isize > cur_isize) {

			if ((nfsi->npages == 0 && !test_bit(NFS_INO_LAYOUTCOMMIT, &nfsi->flags)) ||

			     new_isize > cur_isize) {

				i_size_write(inode, new_isize);

				invalid |= NFS_INO_INVALID_ATTR|NFS_INO_INVALID_DATA;

			}

fs/nfs/internal.h

+11 −0
Original line number Diff line number Diff line
@@ -45,6 +45,17 @@ static inline void nfs_attr_check_mountpoint(struct super_block *parent, struct 
		fattr->valid |= NFS_ATTR_FATTR_MOUNTPOINT;

}



static inline int nfs_attr_use_mounted_on_fileid(struct nfs_fattr *fattr)

{

	if (((fattr->valid & NFS_ATTR_FATTR_MOUNTED_ON_FILEID) == 0) ||

	    (((fattr->valid & NFS_ATTR_FATTR_MOUNTPOINT) == 0) &&

	     ((fattr->valid & NFS_ATTR_FATTR_V4_REFERRAL) == 0)))

		return 0;



	fattr->fileid = fattr->mounted_on_fileid;

	return 1;

}



struct nfs_clone_mount {

	const struct super_block *sb;

	const struct dentry *dentry;

fs/nfs/nfs4filelayout.c

+14 −7
Original line number Diff line number Diff line
@@ -30,6 +30,7 @@ 
 */



#include <linux/nfs_fs.h>

#include <linux/nfs_page.h>



#include "internal.h"

#include "nfs4filelayout.h"
@@ -552,13 +553,18 @@ filelayout_decode_layout(struct pnfs_layout_hdr *flo, 
		__func__, nfl_util, fl->num_fh, fl->first_stripe_index,

		fl->pattern_offset);



	if (!fl->num_fh)

	/* Note that a zero value for num_fh is legal for STRIPE_SPARSE.

	 * Futher checking is done in filelayout_check_layout */

	if (fl->num_fh < 0 || fl->num_fh >

	    max(NFS4_PNFS_MAX_STRIPE_CNT, NFS4_PNFS_MAX_MULTI_CNT))

		goto out_err;



	if (fl->num_fh > 0) {

		fl->fh_array = kzalloc(fl->num_fh * sizeof(struct nfs_fh *),

				       gfp_flags);

		if (!fl->fh_array)

			goto out_err;

	}



	for (i = 0; i < fl->num_fh; i++) {

		/* Do we want to use a mempool here? */
@@ -661,8 +667,9 @@ filelayout_pg_test(struct nfs_pageio_descriptor *pgio, struct nfs_page *prev, 
	u64 p_stripe, r_stripe;

	u32 stripe_unit;



	if (!pnfs_generic_pg_test(pgio, prev, req))

		return 0;

	if (!pnfs_generic_pg_test(pgio, prev, req) ||

	    !nfs_generic_pg_test(pgio, prev, req))

		return false;



	if (!pgio->pg_lseg)

		return 1;

fs/nfs/nfs4proc.c

+27 −18
Original line number Diff line number Diff line
@@ -2265,12 +2265,14 @@ static int nfs4_proc_get_root(struct nfs_server *server, struct nfs_fh *fhandle, 
	return nfs4_map_errors(status);

}



static void nfs_fixup_referral_attributes(struct nfs_fattr *fattr);

/*

 * Get locations and (maybe) other attributes of a referral.

 * Note that we'll actually follow the referral later when

 * we detect fsid mismatch in inode revalidation

 */

static int nfs4_get_referral(struct inode *dir, const struct qstr *name, struct nfs_fattr *fattr, struct nfs_fh *fhandle)

static int nfs4_get_referral(struct inode *dir, const struct qstr *name,

			     struct nfs_fattr *fattr, struct nfs_fh *fhandle)

{

	int status = -ENOMEM;

	struct page *page = NULL;
@@ -2288,15 +2290,16 @@ static int nfs4_get_referral(struct inode *dir, const struct qstr *name, struct 
		goto out;

	/* Make sure server returned a different fsid for the referral */

	if (nfs_fsid_equal(&NFS_SERVER(dir)->fsid, &locations->fattr.fsid)) {

		dprintk("%s: server did not return a different fsid for a referral at %s\n", __func__, name->name);

		dprintk("%s: server did not return a different fsid for"

			" a referral at %s\n", __func__, name->name);

		status = -EIO;

		goto out;

	}

	/* Fixup attributes for the nfs_lookup() call to nfs_fhget() */

	nfs_fixup_referral_attributes(&locations->fattr);



	/* replace the lookup nfs_fattr with the locations nfs_fattr */

	memcpy(fattr, &locations->fattr, sizeof(struct nfs_fattr));

	fattr->valid |= NFS_ATTR_FATTR_V4_REFERRAL;

	if (!fattr->mode)

		fattr->mode = S_IFDIR;

	memset(fhandle, 0, sizeof(struct nfs_fh));

out:

	if (page)
@@ -4667,9 +4670,13 @@ static size_t nfs4_xattr_list_nfs4_acl(struct dentry *dentry, char *list, 
	return len;

}



/*

 * nfs_fhget will use either the mounted_on_fileid or the fileid

 */

static void nfs_fixup_referral_attributes(struct nfs_fattr *fattr)

{

	if (!((fattr->valid & NFS_ATTR_FATTR_FILEID) &&

	if (!(((fattr->valid & NFS_ATTR_FATTR_MOUNTED_ON_FILEID) ||

	       (fattr->valid & NFS_ATTR_FATTR_FILEID)) &&

	      (fattr->valid & NFS_ATTR_FATTR_FSID) &&

	      (fattr->valid & NFS_ATTR_FATTR_V4_REFERRAL)))

		return;
@@ -4686,7 +4693,6 @@ int nfs4_proc_fs_locations(struct inode *dir, const struct qstr *name, 
	struct nfs_server *server = NFS_SERVER(dir);

	u32 bitmask[2] = {

		[0] = FATTR4_WORD0_FSID | FATTR4_WORD0_FS_LOCATIONS,

		[1] = FATTR4_WORD1_MOUNTED_ON_FILEID,

	};

	struct nfs4_fs_locations_arg args = {

		.dir_fh = NFS_FH(dir),
@@ -4705,11 +4711,18 @@ int nfs4_proc_fs_locations(struct inode *dir, const struct qstr *name, 
	int status;



	dprintk("%s: start\n", __func__);



	/* Ask for the fileid of the absent filesystem if mounted_on_fileid

	 * is not supported */

	if (NFS_SERVER(dir)->attr_bitmask[1] & FATTR4_WORD1_MOUNTED_ON_FILEID)

		bitmask[1] |= FATTR4_WORD1_MOUNTED_ON_FILEID;

	else

		bitmask[0] |= FATTR4_WORD0_FILEID;



	nfs_fattr_init(&fs_locations->fattr);

	fs_locations->server = server;

	fs_locations->nlocations = 0;

	status = nfs4_call_sync(server->client, server, &msg, &args.seq_args, &res.seq_res, 0);

	nfs_fixup_referral_attributes(&fs_locations->fattr);

	dprintk("%s: returned status = %d\n", __func__, status);

	return status;

}
@@ -5098,7 +5111,6 @@ static void nfs4_init_channel_attrs(struct nfs41_create_session_args *args) 
	if (mxresp_sz == 0)

		mxresp_sz = NFS_MAX_FILE_IO_SIZE;

	/* Fore channel attributes */

	args->fc_attrs.headerpadsz = 0;

	args->fc_attrs.max_rqst_sz = mxrqst_sz;

	args->fc_attrs.max_resp_sz = mxresp_sz;

	args->fc_attrs.max_ops = NFS4_MAX_OPS;
@@ -5111,7 +5123,6 @@ static void nfs4_init_channel_attrs(struct nfs41_create_session_args *args) 
		args->fc_attrs.max_ops, args->fc_attrs.max_reqs);



	/* Back channel attributes */

	args->bc_attrs.headerpadsz = 0;

	args->bc_attrs.max_rqst_sz = PAGE_SIZE;

	args->bc_attrs.max_resp_sz = PAGE_SIZE;

	args->bc_attrs.max_resp_sz_cached = 0;
@@ -5131,8 +5142,6 @@ static int nfs4_verify_fore_channel_attrs(struct nfs41_create_session_args *args 
	struct nfs4_channel_attrs *sent = &args->fc_attrs;

	struct nfs4_channel_attrs *rcvd = &session->fc_attrs;



	if (rcvd->headerpadsz > sent->headerpadsz)

		return -EINVAL;

	if (rcvd->max_resp_sz > sent->max_resp_sz)

		return -EINVAL;

	/*
@@ -5697,6 +5706,7 @@ static void nfs4_layoutreturn_done(struct rpc_task *task, void *calldata) 
{

	struct nfs4_layoutreturn *lrp = calldata;

	struct nfs_server *server;

	struct pnfs_layout_hdr *lo = NFS_I(lrp->args.inode)->layout;



	dprintk("--> %s\n", __func__);
@@ -5708,16 +5718,15 @@ static void nfs4_layoutreturn_done(struct rpc_task *task, void *calldata) 
		nfs_restart_rpc(task, lrp->clp);

		return;

	}

	spin_lock(&lo->plh_inode->i_lock);

	if (task->tk_status == 0) {

		struct pnfs_layout_hdr *lo = NFS_I(lrp->args.inode)->layout;



		if (lrp->res.lrs_present) {

			spin_lock(&lo->plh_inode->i_lock);

			pnfs_set_layout_stateid(lo, &lrp->res.stateid, true);

			spin_unlock(&lo->plh_inode->i_lock);

		} else

			BUG_ON(!list_empty(&lo->plh_segs));

	}

	lo->plh_block_lgets--;

	spin_unlock(&lo->plh_inode->i_lock);

	dprintk("<-- %s\n", __func__);

}