This makes way for adding roc bit to lseg Signed-off-by: Fred Isaman <iisaman@xxxxxxxxxx> --- fs/nfs/pnfs.c | 18 ++++++++++-------- fs/nfs/pnfs.h | 6 +++++- 2 files changed, 15 insertions(+), 9 deletions(-) diff --git a/fs/nfs/pnfs.c b/fs/nfs/pnfs.c index 27a1973..69f5e7b 100644 --- a/fs/nfs/pnfs.c +++ b/fs/nfs/pnfs.c @@ -276,7 +276,7 @@ init_lseg(struct pnfs_layout_hdr *lo, struct pnfs_layout_segment *lseg) INIT_LIST_HEAD(&lseg->fi_list); atomic_set(&lseg->pls_refcount, 1); smp_mb(); - lseg->valid = true; + set_bit(NFS_LSEG_VALID, &lseg->pls_flags); lseg->layout = lo; lseg->pls_notify_count = 0; } @@ -286,7 +286,7 @@ _put_lseg_common(struct pnfs_layout_segment *lseg) { struct inode *ino = lseg->layout->inode; - BUG_ON(lseg->valid == true); + BUG_ON(test_bit(NFS_LSEG_VALID, &lseg->pls_flags)); list_del(&lseg->fi_list); if (list_empty(&lseg->layout->segs)) { struct nfs_client *clp; @@ -309,7 +309,8 @@ put_lseg_locked(struct pnfs_layout_segment *lseg, struct list_head *tmp_list) { dprintk("%s: lseg %p ref %d valid %d\n", __func__, lseg, - atomic_read(&lseg->pls_refcount), lseg->valid); + atomic_read(&lseg->pls_refcount), + test_bit(NFS_LSEG_VALID, &lseg->pls_flags)); if (atomic_dec_and_test(&lseg->pls_refcount)) { _put_lseg_common(lseg); list_add(&lseg->fi_list, tmp_list); @@ -325,7 +326,8 @@ put_lseg(struct pnfs_layout_segment *lseg) return; dprintk("%s: lseg %p ref %d valid %d\n", __func__, lseg, - atomic_read(&lseg->pls_refcount), lseg->valid); + atomic_read(&lseg->pls_refcount), + test_bit(NFS_LSEG_VALID, &lseg->pls_flags)); ino = lseg->layout->inode; if (atomic_dec_and_lock(&lseg->pls_refcount, &ino->i_lock)) { int count = lseg->pls_notify_count; @@ -363,8 +365,7 @@ static void mark_lseg_invalid(struct pnfs_layout_segment *lseg, struct list_head *tmp_list) { assert_spin_locked(&lseg->layout->inode->i_lock); - if (lseg->valid) { - lseg->valid = false; + if (test_and_clear_bit(NFS_LSEG_VALID, &lseg->pls_flags)) { /* Remove the reference keeping the lseg in the * list. It will now be removed when all * outstanding io is finished. @@ -809,7 +810,8 @@ pnfs_find_lseg(struct pnfs_layout_hdr *lo, assert_spin_locked(&lo->inode->i_lock); list_for_each_entry(lseg, &lo->segs, fi_list) { - if (lseg->valid && is_matching_lseg(lseg, range)) { + if (test_bit(NFS_LSEG_VALID, &lseg->pls_flags) && + is_matching_lseg(lseg, range)) { get_lseg(lseg); ret = lseg; break; @@ -820,7 +822,7 @@ pnfs_find_lseg(struct pnfs_layout_hdr *lo, dprintk("%s:Return lseg %p ref %d valid %d\n", __func__, ret, ret ? atomic_read(&ret->pls_refcount) : 0, - ret ? ret->valid : 0); + ret ? test_bit(NFS_LSEG_VALID, &ret->pls_flags) : 0); return ret; } diff --git a/fs/nfs/pnfs.h b/fs/nfs/pnfs.h index b5a30b8..82b9a7e 100644 --- a/fs/nfs/pnfs.h +++ b/fs/nfs/pnfs.h @@ -33,11 +33,15 @@ #include <linux/nfs_page.h> #include "callback.h" /* for cb_layoutrecallargs */ +enum { + NFS_LSEG_VALID = 0, /* cleared when lseg is recalled/returned */ +}; + struct pnfs_layout_segment { struct list_head fi_list; struct pnfs_layout_range range; atomic_t pls_refcount; - bool valid; + unsigned long pls_flags; struct pnfs_layout_hdr *layout; int pls_notify_count; }; -- 1.7.2.1 -- To unsubscribe from this list: send the line "unsubscribe linux-nfs" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html