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| author | Weston Andros Adamson <dros@primarydata.com> | 2014-07-18 02:42:18 +0200 |
|---|---|---|
| committer | Trond Myklebust <trond.myklebust@primarydata.com> | 2014-08-03 23:05:25 +0200 |
| commit | e6cf82d1830f5e16a10d566f58db70f297ba5da8 (patch) | |
| tree | 6f6a35753bd58e1d273d68934bacead69a9dbab8 /fs | |
| parent | pnfs: find swapped pages on pnfs commit lists too (diff) | |
| download | linux-e6cf82d1830f5e16a10d566f58db70f297ba5da8.tar.xz linux-e6cf82d1830f5e16a10d566f58db70f297ba5da8.zip | |
pnfs: add pnfs_put_lseg_async
This is useful when lsegs need to be released while holding locks.
Signed-off-by: Weston Andros Adamson <dros@primarydata.com>
Signed-off-by: Trond Myklebust <trond.myklebust@primarydata.com>
Diffstat (limited to 'fs')
| -rw-r--r-- | fs/nfs/pnfs.c | 17 | ||||
| -rw-r--r-- | fs/nfs/pnfs.h | 7 |
2 files changed, 24 insertions, 0 deletions
diff --git a/fs/nfs/pnfs.c b/fs/nfs/pnfs.c index 83ff8a05485a..4e853157fecc 100644 --- a/fs/nfs/pnfs.c +++ b/fs/nfs/pnfs.c @@ -361,6 +361,23 @@ pnfs_put_lseg(struct pnfs_layout_segment *lseg) } EXPORT_SYMBOL_GPL(pnfs_put_lseg); +static void pnfs_put_lseg_async_work(struct work_struct *work) +{ + struct pnfs_layout_segment *lseg; + + lseg = container_of(work, struct pnfs_layout_segment, pls_work); + + pnfs_put_lseg(lseg); +} + +void +pnfs_put_lseg_async(struct pnfs_layout_segment *lseg) +{ + INIT_WORK(&lseg->pls_work, pnfs_put_lseg_async_work); + schedule_work(&lseg->pls_work); +} +EXPORT_SYMBOL_GPL(pnfs_put_lseg_async); + static u64 end_offset(u64 start, u64 len) { diff --git a/fs/nfs/pnfs.h b/fs/nfs/pnfs.h index 203b6c9498b0..aca3dff5dae6 100644 --- a/fs/nfs/pnfs.h +++ b/fs/nfs/pnfs.h @@ -32,6 +32,7 @@ #include <linux/nfs_fs.h> #include <linux/nfs_page.h> +#include <linux/workqueue.h> enum { NFS_LSEG_VALID = 0, /* cleared when lseg is recalled/returned */ @@ -46,6 +47,7 @@ struct pnfs_layout_segment { atomic_t pls_refcount; unsigned long pls_flags; struct pnfs_layout_hdr *pls_layout; + struct work_struct pls_work; }; enum pnfs_try_status { @@ -181,6 +183,7 @@ extern int nfs4_proc_layoutreturn(struct nfs4_layoutreturn *lrp); /* pnfs.c */ void pnfs_get_layout_hdr(struct pnfs_layout_hdr *lo); void pnfs_put_lseg(struct pnfs_layout_segment *lseg); +void pnfs_put_lseg_async(struct pnfs_layout_segment *lseg); void set_pnfs_layoutdriver(struct nfs_server *, const struct nfs_fh *, u32); void unset_pnfs_layoutdriver(struct nfs_server *); @@ -419,6 +422,10 @@ static inline void pnfs_put_lseg(struct pnfs_layout_segment *lseg) { } +static inline void pnfs_put_lseg_async(struct pnfs_layout_segment *lseg) +{ +} + static inline int pnfs_return_layout(struct inode *ino) { return 0; |