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| author | Andrew Tridgell <tridge@samba.org> | 1998-09-18 03:00:20 +0000 |
|---|---|---|
| committer | Andrew Tridgell <tridge@samba.org> | 1998-09-18 03:00:20 +0000 |
| commit | 4e784b18899eddd2399a51fa7d8c219560432922 (patch) | |
| tree | dbcf7f73a35659b8dfd4e2152ffe0eb53052f3ed /source/smbd/fileio.c | |
| parent | 724b9508c2d15bafdad5912fce702108fdd4cac3 (diff) | |
| download | samba-4e784b18899eddd2399a51fa7d8c219560432922.tar.gz samba-4e784b18899eddd2399a51fa7d8c219560432922.tar.xz samba-4e784b18899eddd2399a51fa7d8c219560432922.zip | |
gto ri of a bunch more #ifdef LARGE_SMB_OFF_T checks by introducing a
SOFF_T() macro for setting an SMB_OFF_T variable
also limited mmap based reads to MAX_MMAP_SIZE. We really can't mmap
2^50 bytes due to virtual address space problems.
Diffstat (limited to 'source/smbd/fileio.c')
| -rw-r--r-- | source/smbd/fileio.c | 22 |
1 files changed, 9 insertions, 13 deletions
diff --git a/source/smbd/fileio.c b/source/smbd/fileio.c index d40c159798d..5c4bf7dfc23 100644 --- a/source/smbd/fileio.c +++ b/source/smbd/fileio.c @@ -63,19 +63,15 @@ ssize_t read_file(files_struct *fsp,char *data,SMB_OFF_T pos,size_t n) #if WITH_MMAP if (fsp->mmap_ptr) { - SMB_OFF_T num = (fsp->mmap_size > pos) ? (fsp->mmap_size - pos) : -1; - num = MIN(n,num); -#ifdef LARGE_SMB_OFF_T - if ((num > 0) && (num < (1LL<<(sizeof(size_t)*8)))) { -#else /* LARGE_SMB_OFF_T */ - if (num > 0) { -#endif /* LARGE_SMB_OFF_T */ - memcpy(data,fsp->mmap_ptr+pos,num); - data += num; - pos += num; - n -= num; - ret += num; - } + SMB_OFF_T num = (fsp->mmap_size > pos) ? (fsp->mmap_size - pos) : -1; + num = MIN(n,num); + if (num > 0) { + memcpy(data,fsp->mmap_ptr+pos,num); + data += num; + pos += num; + n -= num; + ret += num; + } } #endif |