diff options
| author | Jeremy Allison <jra@samba.org> | 2010-12-20 16:53:16 -0800 |
|---|---|---|
| committer | Jeremy Allison <jra@samba.org> | 2010-12-21 02:41:23 +0100 |
| commit | 8998f4b01310e4b45e75d8d5f3260b5ba5c1cdf9 (patch) | |
| tree | 21e648af9bd549f577ab8cbf59ebdeb89963cbd7 /source3/smbd | |
| parent | 09aea038139f8717d38f0fdae6be9cf46bd86b15 (diff) | |
| download | samba-8998f4b01310e4b45e75d8d5f3260b5ba5c1cdf9.tar.gz samba-8998f4b01310e4b45e75d8d5f3260b5ba5c1cdf9.tar.bz2 samba-8998f4b01310e4b45e75d8d5f3260b5ba5c1cdf9.zip | |
Added call out to a Linux-compatible fallocate() when we need to extend a file
allocation extent without changing end-of-file size.
Autobuild-User: Jeremy Allison <jra@samba.org>
Autobuild-Date: Tue Dec 21 02:41:24 CET 2010 on sn-devel-104
Diffstat (limited to 'source3/smbd')
| -rw-r--r-- | source3/smbd/vfs.c | 13 |
1 files changed, 12 insertions, 1 deletions
diff --git a/source3/smbd/vfs.c b/source3/smbd/vfs.c index 2ebe2a1062..802639f2fb 100644 --- a/source3/smbd/vfs.c +++ b/source3/smbd/vfs.c @@ -501,13 +501,24 @@ int vfs_allocate_file_space(files_struct *fsp, uint64_t len) return ret; } + if (!lp_strict_allocate(SNUM(fsp->conn))) + return 0; + /* Grow - we need to test if we have enough space. */ contend_level2_oplocks_begin(fsp, LEVEL2_CONTEND_ALLOC_GROW); + + /* See if we have a syscall that will allocate beyond end-of-file + without changing EOF. */ + ret = SMB_VFS_FALLOCATE(fsp, VFS_FALLOCATE_KEEP_SIZE, 0, len); + contend_level2_oplocks_end(fsp, LEVEL2_CONTEND_ALLOC_GROW); - if (!lp_strict_allocate(SNUM(fsp->conn))) + if (ret == 0) { + /* We changed the allocation size on disk, but not + EOF - exactly as required. We're done ! */ return 0; + } len -= fsp->fsp_name->st.st_ex_size; len /= 1024; /* Len is now number of 1k blocks needed. */ |