From d1ccc4e400728d90f2ef7904661f53deb7199123 Mon Sep 17 00:00:00 2001 From: Brian Foster Date: Wed, 8 May 2013 08:54:11 -0400 Subject: gluster: add fallocate fop support Implement support for the fallocate file operation. fallocate allocates blocks for a particular inode such that future writes to the associated region of the file are guaranteed not to fail with ENOSPC. This patch adds fallocate support to the following areas: - libglusterfs - mount/fuse - io-stats - performance/md-cache,open-behind - quota - cluster/afr,dht,stripe - rpc/xdr - protocol/client,server - io-threads - marker - storage/posix - libgfapi BUG: 949242 Change-Id: Ice8e61351f9d6115c5df68768bc844abbf0ce8bd Signed-off-by: Brian Foster Reviewed-on: http://review.gluster.org/4969 Tested-by: Gluster Build System Reviewed-by: Anand Avati --- xlators/performance/md-cache/src/md-cache.c | 41 ++++++++++++++++++++++++++++- 1 file changed, 40 insertions(+), 1 deletion(-) (limited to 'xlators/performance/md-cache') diff --git a/xlators/performance/md-cache/src/md-cache.c b/xlators/performance/md-cache/src/md-cache.c index 24924200..0b2c9431 100644 --- a/xlators/performance/md-cache/src/md-cache.c +++ b/xlators/performance/md-cache/src/md-cache.c @@ -1849,6 +1849,44 @@ mdc_readdir (call_frame_t *frame, xlator_t *this, fd_t *fd, return 0; } +int +mdc_fallocate_cbk(call_frame_t *frame, void *cookie, xlator_t *this, + int32_t op_ret, int32_t op_errno, + struct iatt *prebuf, struct iatt *postbuf, dict_t *xdata) +{ + mdc_local_t *local = NULL; + + local = frame->local; + + if (op_ret != 0) + goto out; + + if (!local) + goto out; + + mdc_inode_iatt_set_validate(this, local->fd->inode, prebuf, postbuf); + +out: + MDC_STACK_UNWIND (fallocate, frame, op_ret, op_errno, prebuf, postbuf, + xdata); + + return 0; +} + +int mdc_fallocate(call_frame_t *frame, xlator_t *this, fd_t *fd, int32_t mode, + off_t offset, size_t len, dict_t *xdata) +{ + mdc_local_t *local; + + local = mdc_local_get(frame); + local->fd = fd_ref(fd); + + STACK_WIND(frame, mdc_fallocate_cbk, FIRST_CHILD(this), + FIRST_CHILD(this)->fops->fallocate, fd, mode, offset, len, + xdata); + + return 0; +} int mdc_forget (xlator_t *this, inode_t *inode) @@ -1977,7 +2015,8 @@ struct xlator_fops fops = { .getxattr = mdc_getxattr, .fgetxattr = mdc_fgetxattr, .readdirp = mdc_readdirp, - .readdir = mdc_readdir + .readdir = mdc_readdir, + .fallocate = mdc_fallocate, }; -- cgit