Mike Snitzer f8e05df84b pnfs/flexfiles: retry getting layout segment for reads ... commit eb3fabde15bccdf34f1c9b35a83aa4c0dacbb4ca upstream. If ff_layout_pg_get_read()'s attempt to get a layout segment results in -EAGAIN have ff_layout_pg_init_read() retry it after sleeping. If "softerr" mount is used, use 'io_maxretrans' to limit the number of attempts to get a layout segment. This fixes a long-standing issue of O_DIRECT reads failing with -EAGAIN (11) when using flexfiles Client Side Mirroring (CSM). Cc: stable@vger.kernel.org Signed-off-by: Mike Snitzer <snitzer@kernel.org> Signed-off-by: Anna Schumaker <anna.schumaker@oracle.com> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>		2025-02-21 13:49:50 +01:00
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flexfilelayout.c	pnfs/flexfiles: retry getting layout segment for reads	2025-02-21 13:49:50 +01:00
flexfilelayout.h
flexfilelayoutdev.c
Makefile