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| author | Anna Schumaker <Anna.Schumaker@netapp.com> | 2014-11-25 21:18:16 +0300 |
|---|---|---|
| committer | Trond Myklebust <trond.myklebust@primarydata.com> | 2014-11-26 00:38:32 +0300 |
| commit | 624bd5b7b683c978c6d5f4e9f6142cfb3470983d (patch) | |
| tree | dcbe9728ea9a6ef12b57c63aec6b34b872a42542 /fs/nfs/nfs4file.c | |
| parent | f4ac1674f5da420ef17896f0f222c5215ebcde80 (diff) | |
| download | linux-624bd5b7b683c978c6d5f4e9f6142cfb3470983d.tar.xz | |
nfs: Add DEALLOCATE support
This patch adds support for using the NFS v4.2 operation DEALLOCATE to
punch holes in a file.
Signed-off-by: Anna Schumaker <Anna.Schumaker@Netapp.com>
Signed-off-by: Trond Myklebust <trond.myklebust@primarydata.com>
Diffstat (limited to 'fs/nfs/nfs4file.c')
| -rw-r--r-- | fs/nfs/nfs4file.c | 7 |
1 files changed, 5 insertions, 2 deletions
diff --git a/fs/nfs/nfs4file.c b/fs/nfs/nfs4file.c index f78e9fd0735a..8b46389c4c5b 100644 --- a/fs/nfs/nfs4file.c +++ b/fs/nfs/nfs4file.c @@ -145,7 +145,7 @@ static long nfs42_fallocate(struct file *filep, int mode, loff_t offset, loff_t if (!S_ISREG(inode->i_mode)) return -EOPNOTSUPP; - if (mode != 0) + if ((mode != 0) && (mode != (FALLOC_FL_PUNCH_HOLE | FALLOC_FL_KEEP_SIZE))) return -EOPNOTSUPP; ret = inode_newsize_ok(inode, offset + len); @@ -153,7 +153,10 @@ static long nfs42_fallocate(struct file *filep, int mode, loff_t offset, loff_t return ret; mutex_lock(&inode->i_mutex); - ret = nfs42_proc_allocate(filep, offset, len); + if (mode & FALLOC_FL_PUNCH_HOLE) + ret = nfs42_proc_deallocate(filep, offset, len); + else + ret = nfs42_proc_allocate(filep, offset, len); mutex_unlock(&inode->i_mutex); nfs_zap_caches(inode); |