* Query on freeing of new_fdt->open_fds in file.c
@ 2015-12-11 11:51 pavi1729
2015-12-12 0:38 ` Eric Biggers
0 siblings, 1 reply; 2+ messages in thread
From: pavi1729 @ 2015-12-11 11:51 UTC (permalink / raw)
To: linux-fsdevel
Hi,
I am unable to understand how
new_fdt->open_fds can be freed in __free_fdtable when its an
unsigned long in files_struct ?
Details:
FUNCTION: dup_fd
http://lxr.free-electrons.com/source/fs/file.c#L261
LINE : 282 : new_fdt->open_fds = newf->open_fds_init;
files_struct : http://lxr.free-electrons.com/source/include/linux/fdtable.h#L45
unsigned long open_fds_init[1];
Cheers,
Pavi
^ permalink raw reply [flat|nested] 2+ messages in thread
* Re: Query on freeing of new_fdt->open_fds in file.c
2015-12-11 11:51 Query on freeing of new_fdt->open_fds in file.c pavi1729
@ 2015-12-12 0:38 ` Eric Biggers
0 siblings, 0 replies; 2+ messages in thread
From: Eric Biggers @ 2015-12-12 0:38 UTC (permalink / raw)
To: pavi1729; +Cc: linux-fsdevel
On Fri, Dec 11, 2015 at 05:21:40PM +0530, pavi1729 wrote:
> Hi,
> I am unable to understand how
>
> new_fdt->open_fds can be freed in __free_fdtable when its an
> unsigned long in files_struct ?
The 'struct fdtable' is either embedded in the files_struct (if there are few
file descriptors) or allocated separately (if there are many file descriptors).
__free_fdtable() is only ever called if the 'struct fdtable' is *not* embedded.
^ permalink raw reply [flat|nested] 2+ messages in thread
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2015-12-12 0:38 ` Eric Biggers
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