diff options
| author | Amar Tumballi <amar@gluster.com> | 2009-06-30 13:50:54 +0000 |
|---|---|---|
| committer | Anand V. Avati <avati@dev.gluster.com> | 2009-06-30 16:10:34 -0700 |
| commit | 9d16a33e6171adf7512df839af6f6ffbab96799c (patch) | |
| tree | a20be7488436058810e0f38298b84d4497f2f9a9 /xlators/performance/write-behind/src/write-behind.c | |
| parent | 193b0e696fb7612998e23e21628023e9fffd08ee (diff) | |
enhancement in write-behind
Write calls should not be pushed to background only when the
mandatory locking is enabled, in all other cases (eg: O_SYNC,
O_DIRECT etc), we should not be 'caching' any data, but the
calls can be pushed to the background.
Signed-off-by: Anand V. Avati <avati@dev.gluster.com>
Diffstat (limited to 'xlators/performance/write-behind/src/write-behind.c')
| -rw-r--r-- | xlators/performance/write-behind/src/write-behind.c | 40 |
1 files changed, 22 insertions, 18 deletions
diff --git a/xlators/performance/write-behind/src/write-behind.c b/xlators/performance/write-behind/src/write-behind.c index 81fcde5ae..f1f1604e9 100644 --- a/xlators/performance/write-behind/src/write-behind.c +++ b/xlators/performance/write-behind/src/write-behind.c @@ -1103,12 +1103,11 @@ int32_t wb_open_cbk (call_frame_t *frame, void *cookie, xlator_t *this, int32_t op_ret, int32_t op_errno, fd_t *fd) { - int32_t flags = 0; + long flags = 0; wb_file_t *file = NULL; wb_conf_t *conf = this->private; - if (op_ret != -1) - { + if (op_ret != -1) { file = wb_file_create (this, fd); if (file == NULL) { STACK_UNWIND (frame, -1, ENOMEM, fd); @@ -1125,14 +1124,13 @@ wb_open_cbk (call_frame_t *frame, void *cookie, xlator_t *this, int32_t op_ret, file->disabled = 1; /* If O_DIRECT then, we disable chaching */ - if (frame->local) - { - flags = *((int32_t *)frame->local); + if (frame->local) { + flags = (long)frame->local; if (((flags & O_DIRECT) == O_DIRECT) || ((flags & O_RDONLY) == O_RDONLY) || (((flags & O_SYNC) == O_SYNC) - && conf->enable_O_SYNC == _gf_true)) { - file->disabled = 1; + && conf->enable_O_SYNC == _gf_true)) { + file->window_size = 0; } } @@ -1148,13 +1146,7 @@ int32_t wb_open (call_frame_t *frame, xlator_t *this, loc_t *loc, int32_t flags, fd_t *fd) { - frame->local = CALLOC (1, sizeof(int32_t)); - if (frame->local == NULL) { - STACK_UNWIND (frame, -1, ENOMEM, NULL); - return 0; - } - - *((int32_t *)frame->local) = flags; + frame->local = (void *)(long)flags; STACK_WIND (frame, wb_open_cbk, @@ -1170,10 +1162,11 @@ wb_create_cbk (call_frame_t *frame, void *cookie, xlator_t *this, int32_t op_ret, int32_t op_errno, fd_t *fd, inode_t *inode, struct stat *buf) { + long flags = 0; wb_file_t *file = NULL; + wb_conf_t *conf = this->private; - if (op_ret != -1) - { + if (op_ret != -1) { file = wb_file_create (this, fd); if (file == NULL) { STACK_UNWIND (frame, -1, ENOMEM, fd, inode, buf); @@ -1185,8 +1178,17 @@ wb_create_cbk (call_frame_t *frame, void *cookie, xlator_t *this, */ if ((fd->inode->st_mode & S_ISGID) && !(fd->inode->st_mode & S_IXGRP)) - { file->disabled = 1; + + /* If O_DIRECT then, we disable chaching */ + if (frame->local) { + flags = (long)frame->local; + if (((flags & O_DIRECT) == O_DIRECT) + || ((flags & O_RDONLY) == O_RDONLY) + || (((flags & O_SYNC) == O_SYNC) + && (conf->enable_O_SYNC == _gf_true))) { + file->window_size = 0; + } } LOCK_INIT (&file->lock); @@ -1201,6 +1203,8 @@ int32_t wb_create (call_frame_t *frame, xlator_t *this, loc_t *loc, int32_t flags, mode_t mode, fd_t *fd) { + frame->local = (void *)(long)flags; + STACK_WIND (frame, wb_create_cbk, FIRST_CHILD(this), |