diff options
| author | Alexander Bokovoy <ab@samba.org> | 2008-01-16 12:17:03 +0300 |
|---|---|---|
| committer | Alexander Bokovoy <ab@samba.org> | 2008-01-16 12:17:03 +0300 |
| commit | d86fc3ec8c99aaa5ffaa14a97525154507c39df7 (patch) | |
| tree | 7fb95cd9a112e345fc00a1f156ba01641863ce78 /source3/smbd/reply.c | |
| parent | 68694369fc96354452979b07425f3f48c4f73bbe (diff) | |
| download | samba-d86fc3ec8c99aaa5ffaa14a97525154507c39df7.tar.gz samba-d86fc3ec8c99aaa5ffaa14a97525154507c39df7.tar.bz2 samba-d86fc3ec8c99aaa5ffaa14a97525154507c39df7.zip | |
Add support for offline files support, remote storage, and Async I/O force operations to VFS
Offline files support and remote storage are for allowing communication with
backup and archiving tools that mark files moved to a tape library as offline.
We translate this info into corresponding CIFS offline file attribute and
mark an exported volume as remote storage.
Async I/O force is to allow selective redirection of I/O operations to asynchronous
processing in case it is viable at VFS module discretion. It is needed for
proper handling of offline files as performing regular I/O on offline file will
block smbd.
Signed-off-by: Alexander Bokovoy <ab@samba.org>(This used to be commit 875208724e39564fe81385dfe36e6c963e79e101)
Diffstat (limited to 'source3/smbd/reply.c')
| -rw-r--r-- | source3/smbd/reply.c | 19 |
1 files changed, 13 insertions, 6 deletions
diff --git a/source3/smbd/reply.c b/source3/smbd/reply.c index e2316ef120..381ddfe151 100644 --- a/source3/smbd/reply.c +++ b/source3/smbd/reply.c @@ -3329,8 +3329,12 @@ void reply_read_and_X(struct smb_request *req) return; } - if (!big_readX - && schedule_aio_read_and_X(conn, req, fsp, startpos, smb_maxcnt)) { + /* It is possible for VFS modules to selectively decide whether Async I/O should be used + for the file or not. + */ + if ((SMB_VFS_AIO_FORCE(fsp)) && + !big_readX && + schedule_aio_read_and_X(conn, req, fsp, startpos, smb_maxcnt)) { END_PROFILE(SMBreadX); return; } @@ -4001,13 +4005,16 @@ void reply_write_and_X(struct smb_request *req) nwritten = 0; } else { - if (req->unread_bytes == 0 && - schedule_aio_write_and_X(conn, req, fsp, data, - startpos, numtowrite)) { + /* It is possible for VFS modules to selectively decide whether Async I/O + should be used for the file or not. + */ + if ((SMB_VFS_AIO_FORCE(fsp)) && (req->unread_bytes == 0) && + schedule_aio_write_and_X(conn, req, fsp, data, startpos, + numtowrite)) { END_PROFILE(SMBwriteX); return; } - + nwritten = write_file(req,fsp,data,startpos,numtowrite); } |