d/numam-spdk
1
0
Fork 0
Code Issues Pull Requests Projects Releases Wiki Activity

lib/ftl: Fix padding size calculation

Browse Source 
Padding size calculation should take into account
already acquired write buffer entries in case
number of blocks left for closing band is less than
write buffer size.

Signed-off-by: Wojciech Malikowski <wojciech.malikowski@intel.com>
Reviewed-on: https://review.gerrithub.io/c/spdk/spdk/+/463525 (master)

(cherry picked from commit b08337c216)
Change-Id: I0f9c9bc94eb5a4736eede30ec424c81103e1256f
Signed-off-by: Tomasz Zawadzki <tomasz.zawadzki@intel.com>
Reviewed-on: https://review.gerrithub.io/c/spdk/spdk/+/467136
Tested-by: SPDK CI Jenkins <sys_sgci@intel.com>
Reviewed-by: Paul Luse <paul.e.luse@intel.com>
Reviewed-by: Jim Harris <james.r.harris@intel.com>
Reviewed-by: Wojciech Malikowski <wojciech.malikowski@intel.com>
Reviewed-by: Ben Walker <benjamin.walker@intel.com>
This commit is contained in:
Wojciech Malikowski 2019-07-29 11:32:12 -04:00 committed by Ben Walker
parent 25b669f22a
commit 523b58fc04
1 changed files with 3 additions and 1 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

4
lib/ftl/ftl_core.c
View File

@ -758,8 +758,10 @@ ftl_wptr_pad_band(struct ftl_wptr *wptr)
size_t blocks_left, rwb_size, pad_size;
blocks_left = ftl_wptr_user_lbks_left(wptr);
assert(size <= blocks_left);
assert(blocks_left % dev->xfer_size == 0);
rwb_size = ftl_rwb_size(dev->rwb) - size;
pad_size = spdk_min(blocks_left, rwb_size);
pad_size = spdk_min(blocks_left - size, rwb_size);
/* Pad write buffer until band is full */
ftl_rwb_pad(dev, pad_size);