This set of patches attempt to fix potential data integrity problem in nfs_want_read_modify_write() and improve full page overwrite performance of pNFS block/SCSI layouts. The patch set comprises of two patches: - 1/2 "pNFS: Fix potential corruption of page being written" fixes the integrity issue - 2/2 "pNFS: Avoid read/modify/write when it is not necessary" addresses the cases where read/modify/write was requested for a full- page write. v1 -> v2: - added the fix for missing PagePrivate in the pNFS block layout - made the check for full page write a separate inline function - merged the duplicated code for the pNFS block/SCSI layouts and for the other layout + normal NFS - type usage clean up (int to bool, unsigned to unsigned int) kazuo ito (2): pNFS: Fix potential corruption of page being written pNFS: Avoid read/modify/write when it is not necessary fs/nfs/file.c | 40 ++++++++++++++++++++++++++-------------- 1 file changed, 26 insertions(+), 14 deletions(-) -- 2.20.1
