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charset="utf-8" From: Prasad Pandit Rearrange BRDVRawState structure fields to avoid memory fragments in its object's memory and save some(~8) bytes per object. Signed-off-by: Prasad Pandit Reviewed-by: Stefan Hajnoczi --- block/file-posix.c | 39 +++++++++++++++++++-------------------- 1 file changed, 19 insertions(+), 20 deletions(-) diff --git a/block/file-posix.c b/block/file-posix.c index 78a8cea03b..584346ea3e 100644 --- a/block/file-posix.c +++ b/block/file-posix.c @@ -135,12 +135,6 @@ #define RAW_LOCK_SHARED_BASE 200 =20 typedef struct BDRVRawState { - int fd; - bool use_lock; - int type; - int open_flags; - size_t buf_align; - /* The current permissions. */ uint64_t perm; uint64_t shared_perm; @@ -151,29 +145,34 @@ typedef struct BDRVRawState { uint64_t locked_shared_perm; =20 uint64_t aio_max_batch; + struct { + uint64_t discard_nb_ok; + uint64_t discard_nb_failed; + uint64_t discard_bytes_ok; + } stats; =20 + PRManager *pr_mgr; + BDRVReopenState *reopen_state; + + size_t buf_align; + int fd; + int type; + int open_flags; int perm_change_fd; int perm_change_flags; - BDRVReopenState *reopen_state; + int page_cache_inconsistent; /* errno from fdatasync failure */ =20 + bool use_lock; + bool has_fallocate; + bool needs_alignment; + bool force_alignment; + bool drop_cache; + bool check_cache_dropped; bool has_discard:1; bool has_write_zeroes:1; bool use_linux_aio:1; bool has_laio_fdsync:1; bool use_linux_io_uring:1; - int page_cache_inconsistent; /* errno from fdatasync failure */ - bool has_fallocate; - bool needs_alignment; - bool force_alignment; - bool drop_cache; - bool check_cache_dropped; - struct { - uint64_t discard_nb_ok; - uint64_t discard_nb_failed; - uint64_t discard_bytes_ok; - } stats; - - PRManager *pr_mgr; } BDRVRawState; =20 typedef struct BDRVRawReopenState { --=20 2.44.0