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NFSv4/pnfs: Add support for the PNFS_LAYOUT_FILE_BULK_RETURN flag

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Add a flag PNFS_LAYOUT_FILE_BULK_RETURN, that will attempt to return all
the layouts in a pnfs_layout_destroy_byfsid/pnfs_layout_destroy_byclid
call, instead of just invalidating them.

Signed-off-by: Trond Myklebust <trond.myklebust@hammerspace.com>
Reviewed-by: Jeff Layton <jlayton@kernel.org>
Signed-off-by: Anna Schumaker <Anna.Schumaker@Netapp.com>
This commit is contained in:
Trond Myklebust 2024-06-13 01:00:49 -04:00 committed by Anna Schumaker
parent 8adc830210
commit 41d0a8ead9
2 changed files with 20 additions and 16 deletions
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35
fs/nfs/pnfs.c
View File

@ -476,6 +476,18 @@ pnfs_mark_layout_stateid_invalid(struct pnfs_layout_hdr *lo,
return !list_empty(&lo->plh_segs);
}
static int pnfs_mark_layout_stateid_return(struct pnfs_layout_hdr *lo,
struct list_head *lseg_list,
enum pnfs_iomode iomode, u32 seq)
{
struct pnfs_layout_range range = {
.iomode = iomode,
.length = NFS4_MAX_UINT64,
};
return pnfs_mark_matching_lsegs_return(lo, lseg_list, &range, seq);
}
static int
pnfs_iomode_to_fail_bit(u32 iomode)
{
@ -886,7 +898,10 @@ pnfs_layout_free_bulk_destroy_list(struct list_head *layout_list,
spin_lock(&inode->i_lock);
list_del_init(&lo->plh_bulk_destroy);
if (pnfs_mark_layout_stateid_invalid(lo, &lseg_list)) {
if (mode == PNFS_LAYOUT_FILE_BULK_RETURN) {
pnfs_mark_layout_stateid_return(lo, &lseg_list,
IOMODE_ANY, 0);
} else if (pnfs_mark_layout_stateid_invalid(lo, &lseg_list)) {
if (mode == PNFS_LAYOUT_BULK_RETURN)
set_bit(NFS_LAYOUT_BULK_RECALL, &lo->plh_flags);
ret = -EAGAIN;
@ -1265,27 +1280,15 @@ out:
return status;
}
static bool
pnfs_layout_segments_returnable(struct pnfs_layout_hdr *lo,
enum pnfs_iomode iomode,
u32 seq)
{
struct pnfs_layout_range recall_range = {
.length = NFS4_MAX_UINT64,
.iomode = iomode,
};
return pnfs_mark_matching_lsegs_return(lo, &lo->plh_return_segs,
&recall_range, seq) != -EBUSY;
}
/* Return true if layoutreturn is needed */
static bool
pnfs_layout_need_return(struct pnfs_layout_hdr *lo)
{
if (!test_bit(NFS_LAYOUT_RETURN_REQUESTED, &lo->plh_flags))
return false;
return pnfs_layout_segments_returnable(lo, lo->plh_return_iomode,
lo->plh_return_seq);
return pnfs_mark_layout_stateid_return(lo, &lo->plh_return_segs,
lo->plh_return_iomode,
lo->plh_return_seq) != EBUSY;
}
static void pnfs_layoutreturn_before_put_layout_hdr(struct pnfs_layout_hdr *lo)

1
fs/nfs/pnfs.h
View File

@ -121,6 +121,7 @@ enum layoutdriver_policy_flags {
enum pnfs_layout_destroy_mode {
PNFS_LAYOUT_INVALIDATE = 0,
PNFS_LAYOUT_BULK_RETURN,
PNFS_LAYOUT_FILE_BULK_RETURN,
};
struct nfs4_deviceid_node;