Created by Vlad Lesin on 2012-09-06 and last modified on 2012-09-13
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297. By Vlad Lesin on 2012-09-13

The bug #801989 fix.

The main idea of this fix is to return "true" on success and "false" otherwise
from os_file_set_nocache(). That allows to process O_DIRECT flag setting failures.

If setting O_DIRECT failes on log files the srv_unix_file_flush_method is set
to SRV_UNIX_O_DIRECT value to do fsync() on log files. If O_DIRECT fails on
other files the error is ignored to do buffered I/O on filesystems that do not
support direct I/O(for example tmpfs).

295. By Stewart Smith on 2012-09-03

merge fix for Bug #1039384: innodb_adaptive_flushing_method and innodb_flush_neighbor_pages partially broken

294. By Stewart Smith on 2012-08-24

merge partial PS 5.1 to PS 5.5 merge. This (essentially) null merges (except for file ids) revisions from PS 5.1 to 5.5. Files that had the same name in 5.1 and 5.5 but different file ids now have the same file id as the 5.1 file, so that future modifications and merges 'just work'

293. By Stewart Smith on 2012-08-24

merge release branch for PS 5.5.27-28.0

292. By Stewart Smith on 2012-08-23

merge fix for Bug #1038225: Failing assertion: mutex_own(&buf_pool->mutex) in buf0lru.c on ADD PRIMARY KEY

290. By Stewart Smith on 2012-08-15

merge fix for bug lp:1015109 and bug lp:1026926

289. By Stewart Smith on 2012-08-15

merge fix for Bug #1035225: INSERT ... ON DUPLICATE KEY UPDATE + innodb_autoinc_lock_mode=1 is broken

288. By Stewart Smith on 2012-08-13

merge MySQL 5.5.27 merge

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