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Remove fdatasync() calls from ntfs_pwrite(). We purely rely on 

ntfs_umount() to do the syncing and this results in a massive
speed up when running io intensive libntfs based applications.

(Logical change 1.97)
edge.strict_endians
cantab.net!aia21 2003-01-16 17:28:04 +00:00
parent 47f8702fdd
commit e8430e5dea
1 changed files with 2 additions and 5 deletions
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7
libntfs/disk_io.c
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@ -109,7 +109,7 @@ s64 ntfs_pread(const int fd, const s64 pos, s64 count, const void *b)
* is partial. 0 means nothing was written (also return 0 when @count is 0).
*
* On error and nothing has been written, return -1 with errno set
* appropriately to the return code of either lseek, write, fdatasync, or set
* appropriately to the return code of either lseek, write, or set
* to EINVAL in case of invalid arguments.
*/
s64 ntfs_pwrite(const int fd, const s64 pos, s64 count, const void *b)
@ -144,9 +144,6 @@ s64 ntfs_pwrite(const int fd, const s64 pos, s64 count, const void *b)
/* Nothing written and error, return error status. */
return written;
}
/* Sync write to disk. */
if (fdatasync(fd) == -1)
return -1;
/* Finally, return the number of bytes written. */
return total;
}
@ -225,7 +222,7 @@ s64 ntfs_mst_pread(const int fd, const s64 pos, s64 count,
* means nothing was written (also return 0 when @count or @bksize are 0).
*
* On error and nothing has been written, return -1 with errno set
* appropriately to the return code of either lseek, write, fdatasync, or set
* appropriately to the return code of either lseek, write, or set
* to EINVAL in case of invalid arguments.
*
* NOTE: We mst protect the data, write it, then mst deprotect it using a quick