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Simplify some ERROR paths clearing wait events and transient files

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Transient files and wait events get normally cleaned up when seeing an
exception (be it in the context of a transaction for a backend or
another process like the checkpointer), hence there is little point in
complicating error code paths to do this work.  This shaves a bit of
code, and removes some extra handling with errno which needed to be
preserved during the cleanup steps done.

Reported-by: Masahiko Sawada
Author: Michael Paquier
Reviewed-by: Tom Lane, Masahiko Sawada
Discussion: https://postgr.es/m/CAD21AoDhHYVq5KkXfkaHhmjA-zJYj-e4teiRAJefvXuKJz1tKQ@mail.gmail.com
This commit is contained in:
Michael Paquier
2019-04-17 09:51:45 +09:00
parent a6dcf9df4d
commit 47ac2033d4
4 changed files with 10 additions and 48 deletions
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14
src/backend/replication/slot.c
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@@ -1398,16 +1398,10 @@ RestoreSlotFromDisk(const char *name)
*/
pgstat_report_wait_start(WAIT_EVENT_REPLICATION_SLOT_RESTORE_SYNC);
if (pg_fsync(fd) != 0)
{
int save_errno = errno;
CloseTransientFile(fd);
errno = save_errno;
ereport(PANIC,
(errcode_for_file_access(),
errmsg("could not fsync file \"%s\": %m",
path)));
}
pgstat_report_wait_end();
/* Also sync the parent directory */
@@ -1421,10 +1415,6 @@ RestoreSlotFromDisk(const char *name)
pgstat_report_wait_end();
if (readBytes != ReplicationSlotOnDiskConstantSize)
{
int saved_errno = errno;
CloseTransientFile(fd);
errno = saved_errno;
if (readBytes < 0)
ereport(PANIC,
(errcode_for_file_access(),
@@ -1466,10 +1456,6 @@ RestoreSlotFromDisk(const char *name)
pgstat_report_wait_end();
if (readBytes != cp.length)
{
int saved_errno = errno;
CloseTransientFile(fd);
errno = saved_errno;
if (readBytes < 0)
ereport(PANIC,
(errcode_for_file_access(),